Paradyne 3611 - Manuals - manualsarea.com

Page 2 - COMSPHERE 3600 Series Data Service Units; Document Feedback; COPYRIGHT

COMSPHERE 3600 Series Data Service Units A March 1999 3610-A2-GB41-60 COMSPHERE 3600 Series Data Service Units Models 3610 and 3611Time Division Multiplexer, Multichannel Multipoint, and Digital Bridge OptionsApplications Guide 3610-A2-GB41-60 7th Edition (March 1999) Changes and enhancements to the...

Page 3 - Important Safety Instructions; Never install telephone wiring during a lightning storm.

Safety Instructions B 3610-A2-GB41-60 March 1999 ! Important Safety Instructions 1. Read and follow all warning notices and instructions marked on the product orincluded in the manual. 2. This product is intended to be used with a 3-wire grounding type plug — a plug whichhas a grounding pin. This is...

Page 4 - Notices

COMSPHERE 3600 Series Data Service Units C March 1999 3610-A2-GB41-60 Notices ! ! ! ! ! ! ! !!

Page 5 - Table of Contents; Preface

i 3610-A2-GB41-60 March 1999 Table of Contents Preface About this Guide vii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . How to Use this Guide vii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related Documents viii . . . . . . . ....

Page 6 - Principles of Operation

COMSPHERE 3600 Series Data Service Units ii March 1999 3610-A2-GB41-60 3. Model 3611 Installation Overview 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hardware Straps 3-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 7 - List of Figures; Figure

Table of Contents iii 3610-A2-GB41-60 March 1999 List of Figures Figure Page 1-1 Model 3610 DSU with TDM or MCMP 1-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Model 3611 DSU with TDM or MCMP 1-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Mod...

Page 10 - List of Tables; Table

COMSPHERE 3600 Series Data Service Units vi March 1999 3610-A2-GB41-60 List of Tables Table Page 4-1 LADS Connection Distances 4-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 TDM and MCMP Status Indicators (Model 3611 Only) 5-5 . . . . . . . . . . . . ....

Page 11 - About this Guide

vii 3610-A2-GB41-60 March 1999 Preface About this Guide This applications guide is intended as a supplement to the operator’s guide; it only contains installation andoperation information that is specific to the Time DivisionMultiplexer (TDM), Multichannel Multipoint (MCMP),and digital bridge option...

Page 12 - Related Documents

COMSPHERE 3600 Series Data Service Units viii March 1999 3610-A2-GB41-60 Related Documents Basic DSU product documentation includes the following: 3610-A2-GB46 COMSPHERE 3600 SeriesData Service Units, Models3610 and 3611, User’s Guide 3610-A2-GB48 COMSPHERE 3600 SeriesData Service Units, Models3610 ...

Page 13 - Overview; The COMSPHERE

1-1 3610-A2-GB41-60 March 1999 Overview Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standard Features 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 14 - Standard Features; NOTE; Optional Features; DSU with TDM Capability

COMSPHERE 3600 Series Data Service Units 1-2 March 1999 3610-A2-GB41-60 LPDA-2 interoperability is provided by the systems network architecture (SNA) Diagnostic Interface optionthat is installed on the DSU circuit card. It supports DSUmanagement from IBM’s NetView t host-based network management sys...

Page 16 - DSU with MCMP Capability; The MCMP capability is an enhancement to TDM and

COMSPHERE 3600 Series Data Service Units 1-4 March 1999 3610-A2-GB41-60 DSU with MCMP Capability The MCMP capability is an enhancement to TDM and allows up to six independent application programs toshare one standard 56 kbps multipoint facility. Only anMCMP can be configured to provide MCMP capabili...

Page 17 - DSU with Digital Bridge Capability; The digital bridge capability is dedicated to a single

Overview 1-5 3610-A2-GB41-60 March 1999 DSU with Digital Bridge Capability The digital bridge capability is dedicated to a single DSU, and the data terminal equipment (DTE) connectedto that DSU is usually the controlling DTE of a multipointnetwork. Both TDM and MCMP can be configured toprovide the d...

Page 18 - Models; Model 3610 with TDM or MCMP

COMSPHERE 3600 Series Data Service Units 1-6 March 1999 3610-A2-GB41-60 Models The 3600 Series DSUs are available in two models: • Model 3610 is a standalone desktop unit. • Model 3611 is a circuit card for installation in aCOMSPHERE 3000 Series Carrier. NOTE Except where specifically noted,all feat...

Page 19 - Figure 1-1. Model 3610 DSU with TDM or MCMP

Overview 1-7 3610-A2-GB41-60 March 1999 496-13091-04 EIA232D/V.24 INTERFACE (PORT 1) V.35 INTERFACE (PORT 1) NETWORK DIAGNOSTIC INTERFACE DBM INTERFACE DDS INTERFACE LOW VOLTAGE AC POWER IN COMSPHERE 3610 PORT 5 PORT 6 PORT 2 PORT 3 PORT 4 ADDITIONAL EIA-232 INTERFACES PORT NUMBERS 2 – 6 STATUS INDI...

Page 20 - Figure 1-2. Model 3611 DSU with TDM or MCMP

COMSPHERE 3600 Series Data Service Units 1-8 March 1999 3610-A2-GB41-60 Figure 1-2. Model 3611 DSU with TDM or MCMP

Page 21 - DBM Types; Government Requirements; do

Overview 1-9 3610-A2-GB41-60 March 1999 DBM Types Three dial backup modules (DBMs) are available. A DBM is optional and provides an alternate data path incase the digital connection fails. Each of the three DBMtypes listed below occupy one slot in the COMSPHERE3000 Series Carrier. DBM-V A DBM-V is u...

Page 24 - Hardware Straps; HANDLING PRECAUTIONS

COMSPHERE 3600 Series Data Service Units 2-2 March 1999 3610-A2-GB41-60 This chapter contains only installation information that is specific to a TDM or MCMP, including the Flex andDSD options. NOTE Unless specifically noted, TDMrefers to a TDM, TDM/Flex, orTDM/DSD, and MCMP refers toan MCMP, MCMP/F...

Page 26 - Changing Hardware Settings

COMSPHERE 3600 Series Data Service Units 2-4 March 1999 3610-A2-GB41-60 Changing Hardware Settings If you have a new TDM/Flex or MCMP/Flex or if you ordered a Flex field installation upgrade for a DSU havingfirmware version 6.3x or greater, you do not changehardware straps; you set each port to oper...

Page 28 - Changing the Flex Interface Switch; Procedure

COMSPHERE 3600 Series Data Service Units 2-6 March 1999 3610-A2-GB41-60 Changing the Flex Interface Switch The TDM or MCMP field installation upgrade is shipped from the factory with the switch position set toEIA-232. The following procedure tells you how tochange this setting to V.35 or back to EIA...

Page 29 - Changing the DSD Option Card

Model 3610 Installation 2-7 3610-A2-GB41-60 March 1999 Changing the DSD Option Card The TDM/DSD or MCMP/DSD is shipped from the factory with the option card set to EIA-232. The followingprocedure tells you how to change this setting to V.35 orback to EIA-232. NOTE If the unit has already beeninstall...

Page 30 - Electrical Connection; Label the circuit breaker that protects the wall; CAUTION; Reinstall the factory configuration options use the

COMSPHERE 3600 Series Data Service Units 2-8 March 1999 3610-A2-GB41-60 Electrical Connection CAUTION The power cord with actransformer contains a 3-wiregrounding-type plug whichhas a grounding pin. This is asafety feature. Grounding ofthe unit is vital to ensure safeoperation. Do not defeat thepurp...

Page 31 - Figure 2-7. Model 3610 DSU with TDM or MCMP

Model 3610 Installation 2-9 3610-A2-GB41-60 March 1999 TABLE-TOP AC TRANSFORMER WALL-MOUNT AC TRANSFORMER SNAP TABS (4) FRONT BEZEL FRONT BEZEL COMSPHERE 3610 COMSPHERE 3610 V.35 INTERFACE (PORT 1) EIA-232-D/V.24 INTERFACE (PORT 1) PORT 2 PORT 3 PORT 4 LOW VOLTAGE AC POWER IN DBM INTERFACE DDS INTER...

Page 32 - The red Alarm LED lights when there is no DDS; Software Configuration; From the DCP and Async Terminal

COMSPHERE 3600 Series Data Service Units 2-10 March 1999 3610-A2-GB41-60 If the DSU, DBM, TDM or MCMP (MUX) fails the power-up test: " Procedure 1. Reinstall the factory configuration options; use the FacT configuration for a tributary or FacC for acontrol. 2. Confirm the installed hardware opti...

Page 33 - From the NMS; Network; DSU DTE Connection

Model 3610 Installation 2-11 3610-A2-GB41-60 March 1999 To change configuration options of the Model 3610 DSU from the DCP or the Model 3610 from an asyncterminal, select the Local branch, then the Configuration(Confg) branch. (If not displayed, press the key until Confg is displayed, then press the...

Page 34 - Verification Testing; Digital Test

COMSPHERE 3600 Series Data Service Units 2-12 March 1999 3610-A2-GB41-60 Verification Testing Perform verification testing after any installation. After installing and configuring a network, including controland tributary DSUs, the DDS network and, if appropriate,DBMs and their dial connections, per...

Page 35 - Appendix B

Model 3610 Installation 2-13 3610-A2-GB41-60 March 1999 Adding a TDM/Flex orMCMP/Flex to an InstalledModel 3610 DSU This section describes the procedure for adding a TDM/Flex or MCMP/Flex upgrade for the Model 3610DSU. The time division multiplexer (TDM/Flex) or multichannel multipoint (MCMP/Flex) u...

Page 36 - Getting Started

COMSPHERE 3600 Series Data Service Units 2-14 March 1999 3610-A2-GB41-60 Getting Started As you follow these steps, refer to Figure 2-8. " Procedure 1. Unplug the table-top ac transformer from the ac outlet, then disconnect the power cord from theDSU’s rear panel (labeled POWER). 2. Disconnect t...

Page 37 - Removing the DSU from Its Base

Model 3610 Installation 2-15 3610-A2-GB41-60 March 1999 Removing the DSU from Its Base Refer to Figure 2-4 as you follow these steps. If replacing a TDM or MCMP, refer to this figure as youremove the current TDM or MCMP. " Procedure 1. Disconnect the keypad flat cable from the DSU by squeezing t...

Page 38 - Reassembling the Unit

COMSPHERE 3600 Series Data Service Units 2-16 March 1999 3610-A2-GB41-60 Reassembling the Unit Refer to Figure 2-4 as you close the unit and Figure 2-8 to reconnect cables. " Procedure 1. Align the cover over the expanded base and rear panel. Make sure the four snap tabs are over theircorrespond...

Page 40 - Non-Modular DSU with a TDM or MCMP; Modular DSU with a TDM or MCMP; Appendix C

COMSPHERE 3600 Series Data Service Units 3-2 March 1999 3610-A2-GB41-60 Non-Modular DSU with a TDM or MCMP The non-modular Model 3611 DSU-TDM or DSU-MCMP has connectors mounted directly onto thecircuit cards. With this type of unit, the DTE cables mustbe disconnected before the unit can be removed f...

Page 42 - From the SDCP

COMSPHERE 3600 Series Data Service Units 3-4 March 1999 3610-A2-GB41-60 Figure 3-2. Modular TDM/MCMP Circuit Card Switch Locations Software Configuration A default software configuration is loaded in the DSU at the factory. If the TDM option is installed, theModel 3611 DSU is configured as a control...

Page 45 - Installing a Non-Modular TDM or MCMP

Model 3611 Installation 3-7 3610-A2-GB41-60 March 1999 Installing a Non-Modular TDM or MCMP This section describes the procedure for adding a non-modular TDM or MCMP circuit card onto aModel 3611 DSU and then into a COMSPHERE3000 Series Carrier. One of two special cables that attach to the multiport...

Page 46 - Configuration Branch

COMSPHERE 3600 Series Data Service Units 3-8 March 1999 3610-A2-GB41-60 Press the latches to secure the DSU and TDM orMCMP circuit cards in the carrier to prevent theDSU-TDM or DSU-MCMP unit from beingdislodged during installation of the DTEinterfaces. Rotate the circuit pack lock on the DSUcircuit ...

Page 48 - Installing a Modular TDM or MCMP; This section describes the procedure for adding a

COMSPHERE 3600 Series Data Service Units 3-10 March 1999 3610-A2-GB41-60 Installing a Modular TDM or MCMP This section describes the procedure for adding a modular TDM or MCMP circuit card onto a Modular3611 DSU and then into a COMSPHERE 3000 SeriesCarrier. A connector module, which is supplied with...

Page 49 - To remove the installed Modular 3611 DSU:; Use a Phillips screwdriver to loosen the screw; Figure 3-5. Modular TDM or MCMP Installation

Model 3611 Installation 3-11 3610-A2-GB41-60 March 1999 To remove the installed Modular 3611 DSU: " Procedure 1. Use a Phillips screwdriver to loosen the screw holding the circuit pack lock on the Modular 3611DSU, and rotate the lock to the open position(Figure 3-5). 2. Pull out and down on the ...

Page 51 - Equipment Warranty and Support

Model 3611 Installation 3-13 3610-A2-GB41-60 March 1999 Removing TDM or MCMP froman Installed Model 3611 DSU To remove the TDM or MCMP circuit card: " Procedure 1. For a non-modular DSU-TDM or DSU-MCMP unit, disconnect the DTE interface cable from theDSU, and disconnect the multiport cable from ...

Page 53 - Principles of Operation

4-1 3610-A2-GB41-60 March 1999 Principles of Operation Overview 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Network Terminology 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 54 - A TDM can be configured to provide point-to-point; Network Terminology; Data transmission between 3600 Series DSUs and

COMSPHERE 3600 Series Data Service Units 4-2 March 1999 3610-A2-GB41-60 Setup – DBM Rate Less Than DSU Rate 4-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Manual DDS Restoration 4-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 55 - Multipoint Transmission; A 3600 Series DSU can be configured as a control or

Principles of Operation 4-3 3610-A2-GB41-60 March 1999 Multipoint Transmission In multipoint transmission (Figure 4-1), a control DSU is connected through the digital facility to multipletributaries communicating at the same rate. Traditionally,a tributary site (often referred to as a drop) can tran...

Page 56 - Modes Of Operation; Basic Mode

COMSPHERE 3600 Series Data Service Units 4-4 March 1999 3610-A2-GB41-60 Modes Of Operation A DSU with TDM or MCMP can operate in one of four modes: TDM mode (MUX Funct: TDM), MCMPmode (MUX Funct: MCMP), Bridge mode (MUX Funct:CBrdg or EBrdg), or Basic mode (MUX Funct: None).TDM and Bridge modes are ...

Page 57 - Time Division Multiplexing; Since transmission facilities are expensive, and

Principles of Operation 4-5 3610-A2-GB41-60 March 1999 Time Division Multiplexing Since transmission facilities are expensive, and frequently two or more low-speed point-to-pointapplications can share a high-speed digital facility, it ismore efficient to share that capacity. This sharing isprovided ...

Page 58 - Speed Characteristics

COMSPHERE 3600 Series Data Service Units 4-6 March 1999 3610-A2-GB41-60 Speed Characteristics In time division multiplexing, the speed of the DDS line must equal or exceed the combined speeds of digitalsignals to be transmitted at each DTE interface. Forexample, if the multiplexer in Figure 4-2 has ...

Page 59 - TDM Architecture; Figure 4-3 shows a high-level view of the TDM; For non-modular Model 3611 DSUs operating in TDM; Figure 4-3. TDM Architecture and Signal Flow; complies with the CCITT V.32 modem recommendation.

Principles of Operation 4-7 3610-A2-GB41-60 March 1999 TDM Architecture Figure 4-3 shows a high-level view of the TDM architecture. Port 1 on the DSU is routed to the TDM orMCMP, where it is multiplexed with Ports 2 through 6.The aggregate data path of the multiplexer is routed backto the DDS core* ...

Page 60 - TDM Applications

COMSPHERE 3600 Series Data Service Units 4-8 March 1999 3610-A2-GB41-60 TDM Applications The TDM capability can be used in a variety of configurations to enhance DDS service. Configurationsdiscussed here include point-to-point multiplexing, aTDM backbone circuit with extensions, diagnosticextension,...

Page 61 - Multipoint Async Compatibility

Principles of Operation 4-9 3610-A2-GB41-60 March 1999 Multipoint Async Compatibility The control DSU with the Single-Port Async/Sync feature is compatible with earlier DSU releases that use aTDM with the ports configured as a single port-sharinggroup, as long as the control DSU’s port speed andport...

Page 62 - The 3600 Series DSU operating in TDM mode can be

COMSPHERE 3600 Series Data Service Units 4-10 March 1999 3610-A2-GB41-60 Point-to-Point Multiplexing The 3600 Series DSU operating in TDM mode can be used for point-to-point circuits at speeds of up to 64 kbps.Figure 4-6 shows a typical TDM application. Inpoint-to-point multiplexing, the DTEs at Por...

Page 63 - TDM Backbone Circuit with Extensions; Diagnostic Path Extension

Principles of Operation 4-11 3610-A2-GB41-60 March 1999 TDM Backbone Circuit with Extensions Figure 4-7 shows a 3600 Series DSU with TDM as the DDS backbone with an analog private line (APL)extended circuit. In this example, Port 4, which is set tounderspeed, cannot support an extended circuit becau...

Page 65 - Multiplexing and Digital Sharing; When digital sharing is combined with the TDM or; Some of the ports can be configured for multiplexing; Figure 4-9. Multiplexing and Digital Sharing

Principles of Operation 4-13 3610-A2-GB41-60 March 1999 Multiplexing and Digital Sharing When digital sharing is combined with the TDM or MCMP multiplexing capability, in-band framing must betaken into account. The TDM circuit card can support upto two digital-sharing groups, while the MCMP circuitc...

Page 66 - FEP Port Sharing; Set the tributary DSU’s port

COMSPHERE 3600 Series Data Service Units 4-14 March 1999 3610-A2-GB41-60 FEP Port Sharing FEP port sharing is a method of connecting a front-end processor (FEP) to multiple control DSUs/modems tobroadcast the same message over different circuits, yetreceive individual responses. A typical example ca...

Page 68 - TDM Backup; A point-to-point multiplexing circuit can be backed up

COMSPHERE 3600 Series Data Service Units 4-16 March 1999 3610-A2-GB41-60 TDM Backup A point-to-point multiplexing circuit can be backed up through the switched telephone network. There are fivepossible configurations: • Case 1 – V.32 Backup for subrate DDS( Figure 4-11 ). If the DDS network is out-o...

Page 70 - Figure 4-13. Case 3 – V.32 Backup for DSU with Extended Circuits

COMSPHERE 3600 Series Data Service Units 4-18 March 1999 3610-A2-GB41-60 • Case 3 – V.32 Backup for high-speed DSU withextended circuits ( Figure 4-13). When thebackbone circuit is restored at 14.4 kbps, the portspeeds at the tributary DSU may need to bereduced. If the port speed of the extended cir...

Page 73 - Multichannel Multipoint; The MCMP capability reduces the number of parallel

Principles of Operation 4-21 3610-A2-GB41-60 March 1999 Multichannel Multipoint The MCMP capability reduces the number of parallel multipoint digital private lines required by independentapplications. Merging applications onto a singlecommunications circuit reduces line, DCE, andmaintenance costs (F...

Page 74 - At the control DSU, each application in

COMSPHERE 3600 Series Data Service Units 4-22 March 1999 3610-A2-GB41-60 At the control DSU, each application in Figure 4-16 is given its own channel (A, B, or C ), and the channels areassigned to Ports 1 through 3. At each tributary (branch)location, Channel A is assigned to Port 1, allowing thetel...

Page 75 - Line and Channel Speeds; Management Channel; MCMP Operation; In-Band Secondary Channel Transport; Number of Tributaries

Principles of Operation 4-23 3610-A2-GB41-60 March 1999 Line and Channel Speeds The MCMP capability operates only on a 56 kbps DDS multipoint circuit. Speeds of any channel can be set to thesynchronous speed of 1.2, 2.4, 4.8, 7.2, 9.6, 12, 14.4, 16.8,19.2, 38.4, or 48 kbps full-duplex. A channel can...

Page 76 - MCMP Architecture; Figure 4-18 shows a high-level view of the MCMP; Figure 4-18. MCMP Architecture and Signal Flow

COMSPHERE 3600 Series Data Service Units 4-24 March 1999 3610-A2-GB41-60 MCMP Architecture Figure 4-18 shows a high-level view of the MCMP architecture. The data paths are established as in the TDMmode of operation via the data router. Additionalmultichannel multipoint circuitry is activated on theM...

Page 77 - Initialization; Network Modification; MCMP Applications; MUX

Principles of Operation 4-25 3610-A2-GB41-60 March 1999 MCMP Operation For proper MCMP operation, the network must be initialized, with the tributary DSUs added to the controlDSU’s poll list. Each newly installed circuit should beverified as a working single port multipoint circuit, perTechnical Pub...

Page 78 - MCMP; The MCMP capability provides multichannel; MCMP with Digital Sharing; The MCMP capability can be configured for; Figure 4-19. MCMP with Independent Channels

COMSPHERE 3600 Series Data Service Units 4-26 March 1999 3610-A2-GB41-60 MCMP The MCMP capability provides multichannel multipoint operation over a 56 kbps DDS multipointfacility. Figure 4-19 shows an example of channel-to-portassignments and channel speed selections for MCMPoperation: the 48 kbps u...

Page 79 - MUX Configuration Options; MCMP with FEP Port Sharing; Both MCMP capability and TDM capability provide

Principles of Operation 4-27 3610-A2-GB41-60 March 1999 NOTE If the digital-sharing groupconsists of adjacent ports, thedigital-sharing group can becreated via an alternate methodusing the Sharing Device A(Share DevA) and SharingDevice B (Share DevB)configuration options. Refer to the MUX Configurat...

Page 80 - MCMP Backup; Backup may be achieved in one of five ways:; Figure 4-21. Case 1 – Dedicated MCMP Backup with Switched 56 DBMs

COMSPHERE 3600 Series Data Service Units 4-28 March 1999 3610-A2-GB41-60 MCMP Backup Backup may be achieved in one of five ways: • Case 1 – Dedicated MCMP Backup withSwitched 56 DBMs ( Figure 4-21). In this case, twoDBM-Ss are dedicated to the control DSU-MCMP. Two tributary DSUs are equipped with a...

Page 82 - Multipoint Dial Backup

COMSPHERE 3600 Series Data Service Units 4-30 March 1999 3610-A2-GB41-60 • Case 3 – Backing up one complete channel (both partial and full backup) ( Figures 4-23 and 4-24 ). In this case, each tributary DSU in need of service restoration must be equipped with a DBMand the MCMP Backup configuration o...

Page 85 - There are several restrictions to implementation:

Principles of Operation 4-33 3610-A2-GB41-60 March 1999 There are several restrictions to implementation: • There can be at most three DTE inputs (channels). • The sum of the channel speeds should be less thanthe DBM speed. • The ports that are connected using the FEPport-sharing feature should be s...

Page 87 - Digital Bridge; A TDM or MCMP circuit card can be configured to; Figure 4-28. Multipoint with Digital Bridging

Principles of Operation 4-35 3610-A2-GB41-60 March 1999 Digital Bridge A TDM or MCMP circuit card can be configured to perform digital bridge capability. This is a special case ofdigital sharing where all active ports on the bridge areconfigured to one digital-sharing group with or withoutcontention...

Page 88 - If more bridging capability is needed, additional; Figure 4-29. Maximum Bridging Capability – Up to 20 Bridging Ports

COMSPHERE 3600 Series Data Service Units 4-36 March 1999 3610-A2-GB41-60 If more bridging capability is needed, additional DSU-TDM or DSU-MCMP units configured as anextended bridge (EBrdg) can be connected to thecentral-site bridge, the controlling bridge. Up to four extended bridges can be added to...

Page 89 - Figure 4-30. Broadcasting Data Through the Digital Bridge

Principles of Operation 4-37 3610-A2-GB41-60 March 1999 For non-modular Model 3611 DSUs with digital bridge capability, a digital bridge interface (crossover) cableattaches to the 60-pin high-density connector on the TDMor MCMP circuit card to provide fan-out cabling to fiveindividual 25-pin EIA-232...

Page 90 - Diagnostic Considerations; Multipoint Backup

COMSPHERE 3600 Series Data Service Units 4-38 March 1999 3610-A2-GB41-60 Diagnostic Considerations The digital bridge joins the aggregate data stream, including data, framing bits, and diagnostics. Thediagnostic communication with tributary DSUs andDBMs is transparent to the digital bridge. Commands...

Page 91 - Figure 4-31. Multipoint DDS Circuit in Partial Backup

Principles of Operation 4-39 3610-A2-GB41-60 March 1999 Figure 4-31. Multipoint DDS Circuit in Partial Backup

Page 92 - Multipoint Backup Addressing; For a central-site multipoint dial backup configuration,; Figure 4-32. Tributary Addressing via DDS Connections

COMSPHERE 3600 Series Data Service Units 4-40 March 1999 3610-A2-GB41-60 Multipoint Backup Addressing For a central-site multipoint dial backup configuration, the digital bridge is controlled by the control DSU. Eachcentral-site DBM-V, DBM-S, or DBM-D in theCOMSPHERE 3000 Series Carrier has its own ...

Page 93 - Figure 4-33. Tributary Addressing via Backup Connections

Principles of Operation 4-41 3610-A2-GB41-60 March 1999 Figure 4-33. Tributary Addressing via Backup Connections

Page 94 - Multipoint Backup Architecture; In a central-site multipoint dial backup configuration; Normal Operation with Partial Backup Possible

COMSPHERE 3600 Series Data Service Units 4-42 March 1999 3610-A2-GB41-60 Multipoint Backup Architecture In a central-site multipoint dial backup configuration during partial backup (configuration option Bridge Rate isset to =DSU), the first port of the digital bridge is included in the digital-shari...

Page 95 - Data from the controlling DTE is broadcast to all ports

Principles of Operation 4-43 3610-A2-GB41-60 March 1999 Data from the controlling DTE is broadcast to all ports in the digital-sharing group, including the first port of thedigital bridge, where data is then directed through theDSU to the DDS line. When no dial backup is in effect ( Figure 4-34 ), t...

Page 96 - When full backup is in effect, there is no longer any

COMSPHERE 3600 Series Data Service Units 4-44 March 1999 3610-A2-GB41-60 When full backup is in effect, there is no longer any data communication from the DDS line. All tributaries arecommunicating with the controlling DTE via the digitalbridge capability. In a central-site multipoint dial backup co...

Page 97 - At the central site, a DBM is required for each drop to

Principles of Operation 4-45 3610-A2-GB41-60 March 1999 Figure 4-37. Central-Site Bridging Architecture (56 kbps) – Active Digital Bridge Central-Site DBM-Vs/DBM-Ss/DBM-Ds At the central site, a DBM is required for each drop to be backed up. A DBM-V may be used for V.32 backup.For switched 56 kbps b...

Page 98 - Tributary DSU Considerations

COMSPHERE 3600 Series Data Service Units 4-46 March 1999 3610-A2-GB41-60 DBM-V/DBM-S/DBM-D Dial on DTR Capability When the central site loses access to its remote DSUs, the DBM-Vs, DBM-Ss, and DBM-Ds can initiate backupbased upon the state of the DBM’s DTR lead. To activatethis capability, set the P...

Page 99 - Automatic DDS Restoration; Setup – DBM Rate Less Than DSU Rate*; Manual DDS Restoration

Principles of Operation 4-47 3610-A2-GB41-60 March 1999 Tributaries with Multiple Call capability should use this capability to increase their probability of connectionto the bridge. The telephone numbers of all DBMs on thebridge should be entered into the tributary’s directory. The digital bridge m...

Page 100 - LADS Operation; The 3600 Series DSUs can be used as a local area data; LADS Connection Distances; Power level is –10 dBm.

COMSPHERE 3600 Series Data Service Units 4-48 March 1999 3610-A2-GB41-60 LADS Operation The 3600 Series DSUs can be used as a local area data set ( LADS ) to provide a point-to-point link between twodata devices having like protocols. The network facility isa direct 4-wire connection without using a...

Page 101 - Bridged LADS

Principles of Operation 4-49 3610-A2-GB41-60 March 1999 Point-to-Point LADS Two 3600 Series DSUs that are connected by a 4-wire, nonloaded metallic pair can support point-to-point LADSoperation. A typical scenario involves two data deviceslocated in the same building or in a campus environment. Eith...

Page 103 - Bridged LADS Architecture; Chapter 5; Figure 4-39. Bridged LADS Architecture and Signal Flow

Principles of Operation 4-51 3610-A2-GB41-60 March 1999 Bridged LADS Architecture One TDM circuit card operating in Bridge mode can support up to six tributary DSUs ( Figure 4-39 ). In thetransmit direction, data from the controlling DTE isbroadcast to all ports in the digital-sharing group. In ther...

Page 104 - Digital Bridge/DSU Interface; shows the interconnections between a; NMS Control; For a DSU with TDM or MCMP, the DATAPHONE II

COMSPHERE 3600 Series Data Service Units 4-52 March 1999 3610-A2-GB41-60 Digital Bridge/DSU Interface Figure 4-40 shows the interconnections between a digital bridge port and a central-site 3600 Series DSU.Since both the digital bridge port and the DSU provide aDCE interface, a special crossover cab...

Page 105 - SNA Diagnostic Interface; Assigning an Address to the Control DSU

Principles of Operation 4-53 3610-A2-GB41-60 March 1999 SNA Diagnostic Interface The SNA Diagnostic Interface option, which is compatible with IBM’s LPDA-2 ( Line ProblemDetermination Aid, Revision 2 ) protocol, enablesmanagement of 3600 Series DSUs from the DCP, aParadyne NMS, IBM’s NetView managem...

Page 106 - Assigning an Address to the Tributary DSU; TDM or MCMP

COMSPHERE 3600 Series Data Service Units 4-54 March 1999 3610-A2-GB41-60 Figure 4-41. Sample Configuration and LPDA-2 Addressing Assigning an Address to the Tributary DSU The following rules apply to assigning the LPDA-2 address for tributary DSUs: 1. Valid Addresses. Valid addresses for tributary D...

Page 107 - NetView-Initiated Dial Backup; LPDA-2 Configuration Options

Principles of Operation 4-55 3610-A2-GB41-60 March 1999 When digital sharing is used on a multipoint circuit, make sure there is no overlap of LPDA-2 tributaryaddresses. NetView-Initiated Dial Backup The 3600 Series DSUs support NetView-initiated dial backup in a point-to-point configuration only( F...

Page 110 - Digital Sharing; show how digital sharing is used

COMSPHERE 3600 Series Data Service Units 4-58 March 1999 3610-A2-GB41-60 Digital Sharing Figures 4-46 and 4-47 show how digital sharing is used with LPDA-2 monitoring. When a digital-sharing group isconfigured on a tributary DSU, the DSU recognizesmultiple LPDA-2 addresses instead of one. The number...

Page 111 - Figure 4-47. Digital Sharing in a Multipoint Circuit

Principles of Operation 4-59 3610-A2-GB41-60 March 1999 Figure 4-47. Digital Sharing in a Multipoint Circuit

Page 115 - DSU Operations

5-1 3610-A2-GB41-60 March 1999 DSU Operations Overview 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diagnostic Control Panels 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 116 - This chapter identifies and discusses function and; Refer to the COMSPHERE 3600 Series Data Service; Diagnostic Control Panels; Diagnostic control panel (DCP for the Model 3610

COMSPHERE 3600 Series Data Service Units 5-2 March 1999 3610-A2-GB41-60 Overview This chapter identifies and discusses function and selection differences on the DSU when the TDM orMCMP optional feature is installed. It also discussesoperation of DBM-Vs, DBM-Ss, and DBM-Ds, which areused in digital b...

Page 117 - Status Indicators; TDM; Multirate

DSU Operations 5-3 3610-A2-GB41-60 March 1999 Status Indicators The status indicators on the Model 3610 DSU’s DCP and on the Model 3611 DSU’s faceplate continuouslyprovide information on the current operating condition ofthe DSU. All of the status indicators on the Model 3610appear on its DCP, where...

Page 121 - Menu Structure; Appendix A; Menus and Mode of Operation; does not

DSU Operations 5-7 3610-A2-GB41-60 March 1999 Menu Structure The menu tree is accessed via the DCP (SDCP for a DBM-V, DBM-S, or DBM-D) and is shown in Appendix A . The menus that appear in the menu tree depend upon the DSU’s function within the network(control or tributary), the hardware options tha...

Page 122 - Status Branch

COMSPHERE 3600 Series Data Service Units 5-8 March 1999 3610-A2-GB41-60 • The Control (Ctrl) branch provides the ability todisplay and change external leads, enable or disablethe DSU-DBM, and access and monitor the externalleads for Ports 1 through 6. The circuit designationstatus indicators (TXD, R...

Page 123 - Health and Status; Device Health and Status; Expanded Health and Status; Results

DSU Operations 5-9 3610-A2-GB41-60 March 1999 Health and Status Health and Status (H/S) enables you to display the status of the DSU, as well as a DBM, TDM or MCMP, ifinstalled. It automatically scans for DSU and lineconditions that are not within normal limits. There are three types of Health and S...

Page 124 - Subnetwork Health and Status; DTE Status

COMSPHERE 3600 Series Data Service Units 5-10 March 1999 3610-A2-GB41-60 Subnetwork Health and Status Subnetwork Health and Status (Subn) provides status information from a DSU’s subnetwork (all DSUs andDBMs assigned to that DSU’s active poll list). Thedownstream network addresses and current status...

Page 125 - Circuit Quality; Terminal Power

DSU Operations 5-11 3610-A2-GB41-60 March 1999 Circuit Quality Circuit Quality (CircQ) only appears when a V.32 DBM is installed. The report shows the level and qualityof the signal being received from the network by the V.32DBM. To access the Circuit Quality status report from the top-level menu, m...

Page 126 - Backup Branch; Bridge

COMSPHERE 3600 Series Data Service Units 5-12 March 1999 3610-A2-GB41-60 Backup Branch The Backup (Bckup) branch controls operation of the point-to-point dial backup feature. The Bckup selectiononly appears when a DBM (V.32 DBM, 4-wireSwitched 56 DBM, or 2-wire Switched 56 DBM) isinstalled, Central-...

Page 127 - Aggregate Switch

DSU Operations 5-13 3610-A2-GB41-60 March 1999 Table 5-5 Backup Branch Menu Selections Current DBM Mode Menu Selection Effect Idle Bkup Dial Dial out, establish, and switch to dialed link (Dial Backup mode). Dial out and establish dialed link (Standby mode). The data is routedover the DDS circuit. S...

Page 128 - Test Branch

COMSPHERE 3600 Series Data Service Units 5-14 March 1999 3610-A2-GB41-60 For a DSU configured as a central-site bridge with configuration option Bridge Rate set to =DDS, one of thefollowing two screens appears: F1 DBM : Brdg with DDSBkup F2 F3 F1 DBM : Brdg w/o DDSDrBU F2 F3 For a DSU configured as ...

Page 129 - Abort; The DBM must be in Idle mode or Disconnect mode,; Abrt so that the test can be aborted.

DSU Operations 5-15 3610-A2-GB41-60 March 1999 Abort The Abort selection allows you to terminate a test that is running. When a test is running, the DBM is in Testmode and is not allowed to run any other test. To access the Abort selection from the top-level menu, make the following selections: • Lo...

Page 131 - Loopback; For additional information concerning loopbacks, refer; Local Loopback; Local loopback is used with the DTE test after the

DSU Operations 5-17 3610-A2-GB41-60 March 1999 Loopback The Loopback (Lpbk) branch displays four loopbacks: • Local Loopback (LL) • DTE Loopback (DTE) • Digital Loopback (DL) • Remote Digital Loopback (RL) For additional information concerning loopbacks, refer to the COMSPHERE 3600 Series Data Servi...

Page 133 - DTE Loopback

DSU Operations 5-19 3610-A2-GB41-60 March 1999 DTE Loopback DTE Loopback (DTE) loops back the data path at the DTE/DCE interface on a per port basis without affectingthe operation of the remaining ports (Figure 5-6). Amessage appears regarding successful loopback execution. To access the DTE Loopbac...

Page 134 - Digital Loopback; Digital Loopback (DL) is used for manual testing of; For the DSU, the Digital Loopback command is

COMSPHERE 3600 Series Data Service Units 5-20 March 1999 3610-A2-GB41-60 Digital Loopback Digital Loopback (DL) is used for manual testing of the remote end of the circuit. For example, a remoteDigital Loopback may be required in order to complete anexternal Bit Error Rate Test (BERT) from the remot...

Page 135 - For TDM or MCMP mode, the following additional

DSU Operations 5-21 3610-A2-GB41-60 March 1999 Selecting Aggr (Aggregate) loops back the user-transmitted data and the secondary channel transportdata (if nondisruptive diagnostics are in effect). Thisdisrupts secondary channel transport communications.Selecting Prt1 (Port 1) causes the loopback to ...

Page 136 - Remote Digital Loopback; Remote Digital Loopback (RL) is typically used to; In Remote Digital Loopback, the local DSU (control; For a DSU, Remote Digital Loopback is

COMSPHERE 3600 Series Data Service Units 5-22 March 1999 3610-A2-GB41-60 Remote Digital Loopback Remote Digital Loopback (RL) is typically used to support testing by an external device, such as a protocolanalyzer connected to the local DSU’s DTE interface. Atest message from the external device is l...

Page 137 - all of

DSU Operations 5-23 3610-A2-GB41-60 March 1999 In a point-to-point network only, Remote Digital Loopback can also be initiated by the DTE by raisingPin 21 of the EIA-232-D/V.24 interface or Pin N of theV.35 interface, provided the Remote Digital Loopback byDTE (RL by DTE) configuration option is ena...

Page 138 - Bilateral Loopback

COMSPHERE 3600 Series Data Service Units 5-24 March 1999 3610-A2-GB41-60 Bilateral Loopback Bilateral Loopback, shown in Figure 5-9, is a combination of DTE and Digital Loopbacks operatingsimultaneously in the same DSU. Bilateral Loopback orDigital Loopback is a customer-selectable configurationchoi...

Page 139 - Aggr

DSU Operations 5-25 3610-A2-GB41-60 March 1999 Digital Test Digital Test (DT) is used to check the functionality of a pair of DSUs or DBMs and the data circuit between thepair. The local DBM transmits the 511-bit test pattern over the network to the remote DBM for an operator-specifiedlength of time...

Page 141 - Digital Test Results

DSU Operations 5-27 3610-A2-GB41-60 March 1999 Results When the message Command Complete is displayed, any key except the key returns you to the Digital Test submenu, where the Dsply and Clr selections appear. IfClr is selected while the test is running, the test startsagain. F1 DBM DT: FinalErr Sec...

Page 142 - When the message Command Complete is displayed,; any key except the; When the test is over, the top line displays Final; Tests originating from an NMS operating with DPII; Local DBM only

COMSPHERE 3600 Series Data Service Units 5-28 March 1999 3610-A2-GB41-60 Figure 5-11. End-to-End Test Results When the message Command Complete is displayed, any key except the key returns you to the End-to- End Test submenu, where the Displ and Clr selectionsappear. When the test is over, the top l...

Page 143 - Bit Error Rate Test; Displ; Bit Error Rate Test Results; nn

DSU Operations 5-29 3610-A2-GB41-60 March 1999 Bit Error Rate Test The Bit Error Rate Test (BERT) is a session- disruptive test used to analyze the network circuit. Thistest requires network connection to the control andtributary DSUs or DBMs. A DTE connection to theremote DBM may be required. The o...

Page 144 - Figure 5-12. Bit Error Rate Tests in TDM or MCMP Mode

COMSPHERE 3600 Series Data Service Units 5-30 March 1999 3610-A2-GB41-60 Figure 5-12. Bit Error Rate Tests in TDM or MCMP Mode

Page 145 - Lamp Test

DSU Operations 5-31 3610-A2-GB41-60 March 1999 Lamp Test The Lamp test is a test of the status indicators (LEDs) on the DSU’s DCP (both models), and the LCDs on theModel 3610 DCP and the SDCP. When the Lamp test isperformed on the Model 3611, the alarm output isactivated as well. Any indicator that ...

Page 146 - Options

COMSPHERE 3600 Series Data Service Units 5-32 March 1999 3610-A2-GB41-60 Options The Options (Opts) submenu allows you to save, copy, and/or change configuration options. A DBM-V, DBM-S, or DBM-D can initiate a backup call using one of the following setup methods: fullyautomatic backup, partially au...

Page 147 - MUX Setup Option Set; TDM mode – Set MUX Funct to TDM.

DSU Operations 5-33 3610-A2-GB41-60 March 1999 The Load from submenu displays the following selections: DBM SAVE DSU F1 E d i t / S a v e:Gen Bkup MUX F2 F3 PrtSp Press the key to scroll the SAVE, DSU, and DBM selections into view; press the key to scroll the PrtSp selection into view. Select MUX an...

Page 148 - maps mode of operation to the applicable

COMSPHERE 3600 Series Data Service Units 5-34 March 1999 3610-A2-GB41-60 Figure 5-13 maps mode of operation to the applicable Configuration Option Tables (refer to Chapter 6 of theCOMSPHERE 3600 Series Data Service Units,Models 3610 and 3611, Operator’s Guide for thesetables). These tables are arran...

Page 151 - Port Option Sets; Setup

DSU Operations 5-37 3610-A2-GB41-60 March 1999 Port Option Sets The Prt1 through Prt6 selections allow configuration options to be set on a per-port basis for TDM, MCMP, orBridge mode. In TDM or MCMP mode, the Prt1 through Prt6 selections are available. In Bridge mode, the Prt2 throughPrt6 selection...

Page 153 - Complete List of MUX Port Configuration Options; Port Speed Configuration Options

DSU Operations 5-39 3610-A2-GB41-60 March 1999 Table 5-10 (2 of 2) Complete List of MUX Port Configuration Options Option Function Mode of Function DSR Frc On Enable port DSR lead to remain ON aslong as the DSU is working, regardless oftests and network alarms. X X X DSR on Tst Specify when the port...

Page 154 - Poll List; Poll List Menu Options; Adding Self to Poll List

COMSPHERE 3600 Series Data Service Units 5-40 March 1999 3610-A2-GB41-60 If in MCMP mode, the following is displayed: F1 Chang Prt Speed:DSU Chan F2 F3 Select the option set to be edited or changed. Selecting DSU allows you to change the primary port-speedconfigurations; selecting Chan allows you to...

Page 155 - Acquiring the Poll List; Directory

DSU Operations 5-41 3610-A2-GB41-60 March 1999 The Add command is executed. A message is sent to the control DSU asking that the tributary be added to thepolling list. The control DSU responds by acquiring thetributary DSU onto its polling list. Acquiring the Poll List The first time the MCMP capabi...

Page 156 - Tone dial; Phone

COMSPHERE 3600 Series Data Service Units 5-42 March 1999 3610-A2-GB41-60 Table 5-12 Directory Entry and Password Characters Character 1 Use 0 — 9 Dialing digit (These are the onlycharacters accepted by theSwitched 56 DBM.) * Tone-dialing character * # Tone-dialing character # t Tone dial 2 p Pulse d...

Page 157 - Control Branch; Control Branch Menu Options

DSU Operations 5-43 3610-A2-GB41-60 March 1999 Control Branch The Control (Ctrl) branch allows you to enable or disable the DSU’s transmitter, as well as the DBM’s, andto display/change the status of the general purposeexternal DTE leads.* For a DSU operating in TDM orMCMP mode, the Control branch a...

Page 158 - Transmitter Control

COMSPHERE 3600 Series Data Service Units 5-44 March 1999 3610-A2-GB41-60 Transmitter Control Transmitter Control (TxCtl) allows you to enable or disable the DSU’s transmitter (DDS core), the DBM’stransmitter (the DBM’s call setup and answeringcapability), or to enable or disable individual ports whe...

Page 159 - Disab; will not enable the; LEDs; Save

DSU Operations 5-45 3610-A2-GB41-60 March 1999 F1 P r t 2 : EnableEnab Disab F2 F3 NOTE If the DSU core is disabled,enabling all ports in TDM orMCMP mode will not enable the DSU core. You must specificallyenable the DSU core. F1 P r t 2 : DisabCommand Complete F2 F3 The local DBM can be enabled or d...

Page 160 - External Leads

COMSPHERE 3600 Series Data Service Units 5-46 March 1999 3610-A2-GB41-60 When in TDM or MCMP mode, the selections are 1, 2, 3, 4, 5, 6, or Aggr. Aggr is the communications interfacebetween the aggregate data path (on the TDM or MCMPcircuit card) and the DSU. In Bridge mode, the selectionsare 1, 2, 3...

Page 161 - Data Service Unit Menu

A-1 3610-A2-GB41-60 March 1999 Data Service Unit Menu A

Page 165 - Configuration Worksheets

B-1 3610-A2-GB41-60 March 1999 Configuration Worksheets Overview B-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instructions B-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 166 - This page intentionally left blank.

COMSPHERE 3600 Series Data Service Units B-2 March 1999 3610-A2-GB41-60 This page intentionally left blank.

Page 167 - Configuration Worksheet for TDM Mode (1 of 3)

Configuration Worksheet for TDM Mode (1 of 3) Date:________________________________________________ Location:_____________________________________________ Local Phone Number: ( j )__________________________ Device:______________________________________________ Local Address:_________________________...

Page 168 - Configuration Worksheet for TDM Mode (2 of 3)

Configuration Worksheet for TDM Mode (2 of 3) Prt6 Options Value Async → Sync Enab, Disab Async Rate =Sync, 1800, 1200, 600, 300, 150 AsyncBit/Char 6, 7, 8, 9, 10 Stop Bits 1, 2 Overspeed 1.25, 2.5 RTS Cntrl FrcOn, DTE TxCarrSel Const, Cntrl RxCarrSel Const, Cntrl, Mark PCC Buffer Enab, Disab Elast ...

Page 169 - Configuration Worksheet for TDM Mode (3 of 3)

Configuration Worksheet for TDM Mode (3 of 3) DBM Options Value Rate(Kbps) { 14.4, 12.0, 9.6, 4.8, 2.4 TxClkSource { Int, RXC, DSU, Prt1, Prt2, Prt3, Prt4,Prt5, Prt6 CarrLossDisc { Yes, No Auto Retrain { Yes, No Single Rate { Yes, No AutoAnswer Enab, Disab TxElasStor Enab, Disab RxElasStor Enab, Dis...

Page 171 - Configuration Worksheet for MCMP Mode (1 of 3)

Configuration Worksheet for MCMP Mode (1 of 3) Date:________________________________________________ Location:_____________________________________________ Local Phone No.: ( j )______________________________ Device:______________________________________________ Local Address:_______________________...

Page 172 - Configuration Worksheet for MCMP Mode (2 of 3)

Configuration Worksheet for MCMP Mode (2 of 3) Prt6 Options Value Async → Sync Enab, Disab Async Rate =Sync, 1800, 1200, 600, 300, 150 AsyncBit/Char 6, 7, 8, 9, 10 Stop Bits 1, 2 Overspeed 1.25, 2.5 RTS Cntrl FrcOn, DTE TxCarrSel Const, Cntrl RxCarrSel Const, Cntrl, Mark PCC Buffer Enab, Disab Elast...

Page 173 - Configuration Worksheet for MCMP Mode (3 of 3)

Configuration Worksheet for MCMP Mode (3 of 3) General Options Value DTE Port* EIA232, V.35 RTS Cntrl FrcOn, DTE CTS Cntrl Std, =RTS LSD Lead STD, Delay, FrcOn CTS Lead STD, Delay, FrcOn SystemStat Enab, Disab Circ Assur Enab, Disab Tst Pattern AT&T, Std RespondRDL Enab, Disab LL by DTE Enab, Di...

Page 175 - Configuration Worksheet for Bridge Mode (1 of 2)

Configuration Worksheet for Bridge Mode (1 of 2) Date:________________________________________________ Location:_____________________________________________ Local Phone No.: ( j )______________________________ Device:______________________________________________ Local Address:_____________________...

Page 176 - Configuration Worksheet for Bridge Mode (2 of 2)

Configuration Worksheet for Bridge Mode (2 of 2) General Options Value DTE Port EIA232, V.35 RTS Cntrl FrcOn CTS Cntrl Std, =RTS LSD Lead STD, Delay, FrcOn CTS Lead STD, Delay, FrcOn SystemStat Enab, Disab Circ Assur Enab, Disab Tst Pattern AT&T, Std RespondRDL Enab, Disab LL by DTE Enab, Disab ...

Page 177 - Configuration Worksheet for Basic Mode

Configuration Worksheet for Basic Mode Date:_______________________________________________ Location:____________________________________________ Local Phone No.: ( j )_____________________________ Device:_____________________________________________ Local Address:___________________________________...

Page 179 - Pin Assignments

C-1 3610-A2-GB41-60 March 1999 Pin Assignments Overview C-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview The pin assignments for the 3600 Series TDM and MCMP connectors and interfaces are ...

Page 180 - Time Division Multiplexer Connector Used with Non-Modular TDM

COMSPHERE 3600 Series Data Service Units C-2 March 1999 3610-A2-GB41-60 Figure C-1. TDM Interface Cable (Feature Number 3600-F2-500) Table C-1 (1 of 3) Time Division Multiplexer Connector Used with Non-Modular TDM 60-Position High-Density Connector 25-Position Socket D-Sub P1 Pin Port 1 Pin 01 J3 05...

Page 183 - Digital Bridge Connector Used with Non-Modular TDM/MCMP; NC

Pin Assignments C-5 3610-A2-GB41-60 March 1999 Figure C-2. Digital Bridge Interface Cable (Feature Number 3600-F2-501) Table C-2 (1 of 3) Digital Bridge Connector Used with Non-Modular TDM/MCMP 60-Position High-Density Connector 25-Position Plug D-Sub P1 Pin Port 1 Pin 01 NC 2 NC 2 02 P3 24 03 P3 04...

Page 187 - Circuit Name

Pin Assignments C-9 3610-A2-GB41-60 March 1999 Table C-3 60-Position High-Density Connector (TDM/MCMP Ports 2 through 6 for Model 3611 DSU) Pin (Ports 2 – 6) 1 Circuit Name F nction 2 3 4 5 6 EIA-232 2 CCITT Function 14 41 32 20 57 BA 103 Transmit Data (TXD) 49 13 35 43 28 BB 104 Received Data (RXD)...

Page 188 - Pin

COMSPHERE 3600 Series Data Service Units C-10 March 1999 3610-A2-GB41-60 Table C-4 EIA-232-D/V.24 Connector (Port 1) Pin Circuit Name F nction Pin EIA-232-D CCITT/V.24 Function 2 BA 103 Transmit Data (TXD) 3 BB 104 Received Data (RXD) 4 CA 105 Request-to-Send (RTS) 5 CB 106 Clear-to-Send (CTS) 6 CC ...

Page 195 - Received Line Signal Detect (LSD

Pin Assignments C-17 3610-A2-GB41-60 March 1999 Table C-8 6-Port V.35 Interconnect Cable Connector 26-Pin Connector (Connector Module) 34-Pin Connector (6-port V.35 Interconnect Cable) Circuit Name Pin Number Pin Number 7 B Signal Ground (SG) 4 C Request-to-Send (RTS) 5 D Clear-to-Send (CTS) 6 E Dat...

Page 197 - Configuration Scenarios; This appendix presents a subset of various

D-1 3610-A2-GB41-60 March 1999 Configuration Scenarios Overview D-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TDM Configuration Scenarios D-2 . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 198 - all remote devices must; TDM Configuration Scenarios; There are two TDM scenarios described in this section.; Figure D-1. TDM Configuration: Scenario 1 – Two Synchronous Channels

COMSPHERE 3600 Series Data Service Units D-2 March 1999 3610-A2-GB41-60 NOTE In this appendix, full backupindicates that in order tooperate, all remote devices must switch data to backup lineswhen one or more tributariesrequire backup. Partial backupindicates that only affected remote devices will s...

Page 199 - Configuration Options; For TDM scenario 1, use the Configuration Worksheet

Configuration Scenarios D-3 3610-A2-GB41-60 March 1999 Configuration Options For TDM scenario 1, use the Configuration Worksheet for TDM Mode and set the configuration options thatfollow for both the control and tributary DSU-TDMs. • MUX – Setup MUX Funct: TDMShare DevA: DisabShare DevB: DisabP1/2 F...

Page 200 - TDM Scenario 2 – Using Switched 56; For this scenario, the DSU supports three applications; For TDM scenario 2, use the Configuration Worksheet; MUX – Setup; Async; PrtSp – DSU

COMSPHERE 3600 Series Data Service Units D-4 March 1999 3610-A2-GB41-60 TDM Scenario 2 – Using Switched 56 kbps Dial Backup In this configuration, shown in Figure D-2, the Switched 56 DBMs provide the capability for full backupof a TDM circuit operating at 56 kbps. (If the DDS circuitoperates at les...

Page 202 - The following scenarios describe four possible backup; Automatic Partial Backup; The assumed configuration for an automatic partial; Not Active

COMSPHERE 3600 Series Data Service Units D-6 March 1999 3610-A2-GB41-60 Digital Bridge ConfigurationScenarios The following scenarios describe four possible backup processes, which are used in typical customer networks: automatic partial backup, multipoint dial backup withtributary digital-sharing d...

Page 203 - When 1 minute elapses, the two tributary DSUs

Configuration Scenarios D-7 3610-A2-GB41-60 March 1999 When 1 minute elapses, the two tributary DSUs (Figure D-4) instruct their DBMs to place a call to theirrespective DBM-Vs at the central site. (Each tributaryDSU-DBM has been paired with a DBM-V that isassociated with the control DSU-digital brid...

Page 204 - Full Backup; If the fault is with the central-site bridge’s local loop ( a; The network can be tested by performing a Digital Test

COMSPHERE 3600 Series Data Service Units D-8 March 1999 3610-A2-GB41-60 Full Backup If the fault is with the central-site bridge’s local loop ( a No Signal or a Bipolar Violation alarm is reported for thecentral-site bridge ), the central-site bridge must be placedin Backup mode to eliminate problem...

Page 205 - Set the central-site bridge configuration options as

Configuration Scenarios D-9 3610-A2-GB41-60 March 1999 Configuration Options Set the central-site bridge configuration options as follows (Configuration Worksheet for Bridge Mode) • MUX – Setup MUX Funct: CBrdgBridge Rate: =DSUBrdg Timing: IntShare DevA: EnabLowest Port#: DCE# Ports in Gp: 4Port Cnt...

Page 206 - Set the configuration options for automatic partial

COMSPHERE 3600 Series Data Service Units D-10 March 1999 3610-A2-GB41-60 Set the configuration options for automatic partial backup of the tributary DSU as follows (ConfigurationWorksheet for Basic Mode): • DSU Rate(Kbps): 9.6PrtSp(Kbps): 9.6TxClkSource: DDSAggrSwitch: Disab • Diag – DSU Diag Type: ...

Page 207 - Figure D-6. Multipoint Full Dial Backup with; Nondisruptive Diagnostics; Configuration; If a network failure occurs so that the multipoint drops

Configuration Scenarios D-11 3610-A2-GB41-60 March 1999 Figure D-6. Multipoint Full Dial Backup with Nondisruptive Diagnostics Configuration If a network failure occurs so that the multipoint drops are lost, the 6800 Series NMS will display aTributary Time-out alarm for the tributary DSUs, and aFaci...

Page 208 - To end the backup session via the NMS, issue; Set the central-site bridge configuration options that

COMSPHERE 3600 Series Data Service Units D-12 March 1999 3610-A2-GB41-60 To end the backup session via the NMS, issue disconnect commands to the control DSU and all itsDBM-Ss. (The NMS restores all control and tributaryDSUs to the DDS network and drops all dial backup callsby issuing an sf command a...

Page 209 - Set the configuration options for multipoint dial

Configuration Scenarios D-13 3610-A2-GB41-60 March 1999 • Bkup Auto Bckup: DisabBckupOnCMI: DisabAutoRestor: Disab Set the configuration options for multipoint dial backup of a tributary DSU-DBM configuration as follows(Configuration Worksheet for Basic Mode): • DSU Rate(Kbps): 56PrtSp(Kbps): 56TxCl...

Page 212 - Partial Backup Active – Dial Backup Active for

COMSPHERE 3600 Series Data Service Units D-16 March 1999 3610-A2-GB41-60 Figure D-8. Extended Bridge Configuration: Automatic Partial Backup Active – Dial Backup Active for All Drops

Page 213 - Partial Backup Active – Dial Backup Active for Two Drops

Configuration Scenarios D-17 3610-A2-GB41-60 March 1999 Figure D-9. Extended Bridge Configuration: Automatic Partial Backup Active – Dial Backup Active for Two Drops

Page 214 - During the backup session, each pair of communicating

COMSPHERE 3600 Series Data Service Units D-18 March 1999 3610-A2-GB41-60 During the backup session, each pair of communicating DBMs (the DBM-V and its tributary DBM) and the DDSnetwork are active on the bridge. When the DDS networkis restored, each tributary DSU drops its network alarm.After the 5-m...

Page 215 - Set the extended bridge configuration options as; The assumed configuration for backup (

Configuration Scenarios D-19 3610-A2-GB41-60 March 1999 Set the extended bridge configuration options as follows (Configuration Worksheet for Bridge Mode): • MUX – Setup MUX Funct: EBrdgBridge Rate: 9.6Brdg Timing: Prt1Share DevA: EnabLowest Port#: 2# Ports in Gp: 3Port Cntrl: HostShare DevB: Disab ...

Page 216 - Figure D-10. NMS-Controlled Full Backup Configuration – Dial Backup

COMSPHERE 3600 Series Data Service Units D-20 March 1999 3610-A2-GB41-60 Figure D-10. NMS-Controlled Full Backup Configuration – Dial Backup Not Active

Page 220 - Set configuration options for multipoint full dial

COMSPHERE 3600 Series Data Service Units D-24 March 1999 3610-A2-GB41-60 Set configuration options for multipoint full dial backup using the DBM-V as follows (ConfigurationWorksheet for Basic (DBM-V, DBM-S, or DBM-D)Mode): • Diag – DBM Diag Type: DisrRemoteDiag: Enhan • Diag – Gen Position: CntrlLin...

Page 221 - MCMP Using FEP Port Sharing

Configuration Scenarios D-25 3610-A2-GB41-60 March 1999 MCMP ConfigurationScenarios There are three different MCMP scenarios described in this section: one FEP port-sharing scenario and two dialbackup scenarios. MCMP Using FEP Port Sharing The 3600 Series DSUs with MCMP capability are targeted towar...

Page 223 - This scenario describes the Switched 56 kbps dial; When a failure occurs, the control DSU reports a

Configuration Scenarios D-27 3610-A2-GB41-60 March 1999 Dedicated MCMP Backup withSwitched 56 DBMs This scenario describes the Switched 56 kbps dial backup of an MCMP circuit (Figure D-13). The assumedconfiguration for this scenario is as follows: • Network is a 2-drop multipoint circuit operating a...

Page 226 - MCMP Backup Using FEP Port Sharing; This configuration provides backup of two to three; Figure D-14. MCMP FEP Port-Sharing Configuration – Dial Backup

COMSPHERE 3600 Series Data Service Units D-30 March 1999 3610-A2-GB41-60 MCMP Backup Using FEP Port Sharing This configuration provides backup of two to three channels (Figure D-14). When the remote DBM dials intothe control DBM-Vs, the remote DBM automaticallyreverts to TDM mode and adjusts its por...

Page 227 - Pertinent configuration options for the control and; Set the FEP port sharing configuration options for the

Configuration Scenarios D-31 3610-A2-GB41-60 March 1999 • If all tributary DSUs are out of service, the controlMCMP will have an Out-of-Frame alarm. • If a tributary is in Backup mode and the networkproblem has been fixed, the only commands thatcan be sent to the tributary from the control MCMPare a...

Page 229 - Set configuration options for automatic partial backup

Configuration Scenarios D-33 3610-A2-GB41-60 March 1999 Set configuration options for automatic partial backup using the DSU-DBM-TDM as follows (ConfigurationWorksheet for TDM Mode): • MUX – Setup MUX Funct: TDMShare DevA: DisabShare DevB: DisabP1/2 FEP Sh: EnabP3/4 FEP Sh: EnabP5/6 FEP Sh: Disab • ...

Page 231 - Index

Index-1 3610-A2-GB41-60 March 1999 Index A abort, 5-15adapter, V.35, C-12adding, TDM/MCMP model 3610, 2-13model 3611, 3-6 address, control, DSU, 4-53addressable devices, number of, 1-4addresses, valid, 4-53addressing LPDA-2, 4-53, 4-54multipoint backup, 4-40tributary, 4-40, 4-41 aggregate switch, 5-...

Page 233 - automatic partial, DĆ7

Index Index-3 3610-A2-GB41-60 March 1999 DDS connections, 4-40multipoint backup, 4-39MCMP circuit, 4-22 restoration automatic, 4-47manual, 4-47 dedicated backup, switched 56 DBM, D-27MCMP, backup, switched 56 DBM, 4-28 device health and status, 5-9test, 5-15 diagnostic considerations, 4-38control pa...

Page 234 - bridge

COMSPHERE 3600 Series Data Service Units Index-4 March 1999 3610-A2-GB41-60 E EIA-232/V.24, TDM/MCMP, connector, modular/standalone, C-15 EIA-232-D/V.24, connector, port 1, C-10elastic store, per port, 1-3, 1-4electrical, connection, 2-8end-to-end, test, 5-27, 5-28 results, 5-28 equipment, warranty ...

Page 235 - dial backup active, DĆ31

Index Index-5 3610-A2-GB41-60 March 1999 list, poll acquiring, 5-41adding to, 5-40 local loopback, 5-17menu subbranches, 5-7 locations, pin, non-modular, connector, circuit card, C-8 loopback, 5-17 bilateral, 5-20, 5-23, 5-24digital, 5-20 remote, 5-22 DTE, 5-19local, 5-17 LPDA-2 addressing, 4-54 SNA...

Page 238 - adding flex

COMSPHERE 3600 Series Data Service Units Index-8 March 1999 3610-A2-GB41-60 status indicators, 5-5synchronous channels, D-2 TDM/MCMP adding flex model 3610, 2-13model 3611, 3-6 connector, EIA-232/V.24, C-15digital test, 5-26modular DSU, 3-2non-modular, connector, C-5non-modular DSU, 3-2ports 2 - 6, ...