Digi 90031300 - Manual

viii T1 Modem Bank Regulatory Statements Federal Communications Commission (FCC) Statement Radio Frequency Interference (RFI) This equipment generates and uses radio frequency energy, and if not installed and used in strict accordance withmanufacturer’s instructions, may cause interference to radio ...

x T1 Modem Bank Industry Canada Compliance Statement This Class A digital apparatus meets the requirements of the Canadian Interference-Causing Equipment Regulations.It complies with CSA 22.2 No. 950 for safety, ICES 003 for EMC, and ICCS 003 for Telecom. Cet appareil numérique de la classe A respec...

Overview 1 AccelePort T1 Modem Bank Overview The Digi AccelePort T1 Modem Bank is a high speed Wide Area Network (WAN) interface for Windows NT andNovell environments. The T1 Modem Bank system is composed of two major parts: a host-installed EnhancedPerformance Concentrator (EPC/X) adapter and a rac...

T1 Modem Bank 2 Unpacking Table 1 documents typical shipment packaging contents of the T1 Modem Bank. The components should be checkedin upon arrival; notify your salesperson if the order is incomplete. The T1 Modem Bank is shipped with proper shock insulation material. If the unit needs to be shipp...

Planning the T1 Interface 3 Planning the T1 WAN Interface This section describes planning the T1 Modem Bank interface to the carrier facility. The configuration of the T1Modem Bank must match the requirements of the T1 line specified by the carrier. Connections to the WAN Connection to the telephone...

T1 Modem Bank 4 Line Build Out After the T1 Modem Bank is installed, the carrier will determine the correct setting for Line Build Out (LBO).However, certain determinations based on the following information will need to be entered into your computer. • CSU mode Line compensation: Line attenuation c...

Planning the T1 Interface 5 Parameters Specified to the Carrier Certain parameters are specified to the carrier when provisioning the T1 line. You will need to provide the following information to a T1 facility provider. • Individual Access Line  Select the Phone service or Line Pooling Arrangement...

T1 Modem Bank 6 Planning Worksheets The T1 Modem Bank must be configured to match the provisioning of the T1 line from the carrier. General Information Required information includes the following: • The identity of the WAN manager for your local and remote sites • The identification of the TELCO pro...

Planning the T1 Interface 7 T1 Modem Bank Worksheet Type Number or Checkmark ( √ ) Description Circuit ID # __________________ This is a code assigned by your service provider, one per T1 line Lead phone number __________________ Master phone number or first phone in the sequence to receive a call. ...

T1 Modem Bank 8 Hardware Installation This section describes the following procedures: 1. T1 Modem Bank power supply installation/replacement 2. T1 Modem Bank standalone or rack installation 3. T1 Modem Bank daisy chaining 4. EPC/X host adapter installation 5. EPC/X host adapter connection to the T1...

T1 Modem Bank 10 T1 Modem Bank Standalone or Rack Installation You have the option of using the T1 Modem Bank in a standalone, table-top configuration or in a rack-mountedconfiguration. Directions for both configurations are provided in this section. • Make sure the T1 Modem Bank is powered-down bef...

Hardware Installation 11 Standalone Installation Procedure Tools needed: Phillips screwdriver; flat blade screwdriver 1. Place the T1 Modem Bank on a flat surface within 6’ 7” (2m) of a power outlet. 2. Attach the terminator plug to the connector labeled HOST OUT on the HOST IN/OUT and Terminal face...

T1 Modem Bank 12 Requirements for Rack Installations The T1 Modem Bank chassis is made to be inserted into a standard 19-inch or a 24-inch equipment rack. The T1Modem Bank is shipped from the factory with two rack-mounting brackets (“ears”) installed for a 19-inch rack. Ifyou wish to install a T1 Mo...

Hardware Installation 15 1. Installing the T1 Modem Bank into the rack requires two people since the T1 Modem Bank is heavy. Note that handles are provided on the T1 Modem Bank to aid in rack installation. They are part of the chassis and arelocated on the front of the T1 Modem Bank near the outer e...

T1 Modem Bank 16 Daisy Chaining T1 Modem Bank Units The HOST OUT connector of each unit must be connected to the HOST IN connector of the next unit in the daisychain. A terminator plug is then installed on the HOST OUT connector of the last unit in the daisy chain. See Figure8. Figure 8 Synchronous ...

Hardware Installation 17 Daisy Chain Example While setting up daisy chains, refer to the example shown in Figure 9 and the directions that follow. Figure 9 Two Daisy Chains of T1 Modem Banks to be Connected Locally T M T M T M T M T M T M T M 7HUPLQDWRU SOXJ LQVWDOOHG RQ +RVW 2XW SRUW 7HUPLQDWRU SOX...

T1 Modem Bank 18 • Do not connect wires to pins 12 or 13 in a standard daisy chain cable—serious damagecould result. • Never use VGA extension cable or any other cable that has all 15 pins wired. • Do not use a standard DB15 video cable • To build a custom daisy chain cable, follow the wiring mode s...

Hardware Installation 19 Daisy Chaining T1 Modem Bank Units and EPC/CON-16 Concentrators A T1 Modem Bank can be installed in an existing system comprised of EPC/CON-16 concentrators. See Figure 11. • Because existing EPC concentrators are assigned node numbers by the host each time the software is b...

T1 Modem Bank 20 EPC/X Host Adapter Installation The Digi EPC/X host adapter is an intelligent dual-channel synchronous communication board which plugs into aslot in your computer’s bus. The adapter provides an interface between the computer and a single T1 Modem Bankor a series of daisy-chained T1 ...

Hardware Installation 21 ISA Host Adapters Setting the I/O Port Address The ISA EPC/X host adapter uses four bytes of address space on the host computer’s I/O bus. Before installing thehost adapter, the board’s I/O port starting address must be set on DIP switch SW1 (located on the top of the board)...

Hardware Installation 23 EISA Host Adapters Factory-Set Jumpers There are three jumpers, J1-J3 on the EISA EPC/X host adapter. These are set in the factory, and must not bechanged. Installing the EISA Host Adapter in your Computer 1. Turn off your computer and disconnect any attached peripheral devi...

Software Installation 27 Software Installation and Configuration Setting the Node Number The EPC/X host adapter identifies T1 Modem Bank units and/or EPC concentrators by their node numbers, whichare stored in non-volatile RAM (NVRAM). Each T1 Modem Bank and concentrator in a daisy chain must have a...

Software Installation 29 Installing Download Cycle the T1 Modem Bank’s power off, then on again to restart POST. After a brief pause, the lights on the displaypanel will flash, and the T1 Modem Bank will begin the POST sequence, which takes about 2 minutes to complete.Once the POST is completed, P1 ...

T1 Modem Bank 30 POST Failure If the T1 Modem Bank does not pass POST, it will display an error message code on the seven-segment LED displayand enter an infinite loop, waiting for the device to be reset. (Table 4 shows a list of the possible error messagecodes). Table 4 Error Message Codes Code Pro...

Software Installation 31 Possible Problem If at least one modem card is not inserted in the T1 Modem Bank unit, the line card will busy out the linesassociated with that line card. Restarting POST Cycle the T1 Modem Bank’s power off, then on again to restart POST. Display Panel Status Indicators Onc...

T1 Modem Bank 34 Software Installation for Novell Systems Introduction Before software installation can proceed: • The EPC/X adapters must be installed in the computer. • The T1 Modem Banks must be connected to the EPC/X host adapters. • The T1 Modem Banks must be powered on. • The T1 Modem Bank nod...

Software Installation 35 Installing the EPC/X AIO Device Driver See the AccelePort EPC/X device driver installation instructions in the Digi AccelePort Intelligent SerialCommunications Products Novell AIO Device Driver Package Software Manual (manual part no. 92000243). Thismanual is included with t...

T1 Modem Bank 36 Configuring the T1 Modem Banks • The instructions for configuring and managing T1 Modem Banks with QuickManager are in “Configuring viaQuickManager” on page 41. • Configuring the T1 Modem Banks with the DGT1CFG.NLM utility is described in this section. Although the DGT1CFG.NLM utili...

T1 Modem Bank 38 Software Installation for Windows NT Systems Software installation and configuration for a Windows NT system involves the following steps: 1. Install and configure the EPC/X Windows NT device driver on the host system (the system to which the T1 Modem Banks are directly connected). ...

Software Installation 39 Windows NT 4.0 1. Double click Control Panel. 2. Double click the Network icon. 3. When the “Network” window appears, select “Services”, then click the “Add” button. 4. Select “SNMP Service.” Installing RAS Windows NT Remote Access Service (RAS) includes the following applic...

Software Installation 41 T1 Modem Bank Configuration The T1 Modem Bank can be configured in the field for specific network needs by one of four methods: • QuickManager mode • DGT1CFG.NLM mode (used on Novell systems only). See “Configuring the T1 Modem Banks” on page 36for instructions on using the ...

T1 Modem Bank 44 Configuring via the Terminal Port To configure the T1 Modem Bank through the terminal port, follow these steps before startingup the T1 Modem Bank: 1. Make sure the T1 Modem Bank is shut off; then connect a terminal to the terminal port. Some terminals will not transmit data if thei...

Software Installation 45 Configuring via the Display Panel Power up the T1 Modem Bank and press the right push button on the display panel soon after the adjacent lightsflash. Repeated pressing of the right push button will cycle through the following sequence: (1) Node number selection (2) T1 line ...

Software Installation 47 Configuring via the Serial Port Interface The serial port on the T1 Modem bank can be used to display and modify the T1 configuration. It can also be used todisplay the installed equipment list, the modem on/off-hook status, and the alarm status. Thus there are 5 basicfuncti...

T1 Modem Bank 56 T1 Modem Bank Diagnostics The T1 Modem Bank features three methods of running its on-board diagnostic programs: • QuickManager mode • display panel mode The tests are selected and executed by pushing the buttons on the display panel andreading the results on the LED indicators • ter...

Diagnostics 57 Running Diagnostics with QuickManager QuickManager is started by clicking the “Digi” program group, and then clicking the QuickManager icon. Clicking“Window” in the main menu will allow you to view the current configuration settings, change the configurationsettings, or run a test on ...

T1 Modem Bank 58 Running Diagnostics from the Display Panel To run the internal diagnostic programs from the T1 Modem Bank’s front panel, turn the T1 Modem Bank on andwait for the POST (Power On Self Test) to complete. While P1 is displayed on the front panel, press either button on the display pane...

Diagnostics 59 Running Diagnostics from the Terminal Port 1. To run the internal diagnostic programs from the terminal port, turn off the T1 Modem Bank and connect a terminal to the terminal port. Some terminals will not transmit data if their CTS (Clear To Send) line is LOW.These terminals must hav...

T1 Modem Bank 62 Diagnostic Test Descriptions Test 1: Front Panel Test This test activates the ten LED indicators and the two 7-segment displays in four different patterns at 1-secondintervals: the first pattern lights the RD, CTS, DCD, RI and IFC LEDs plus the horizontal elements of both 7-segment ...

Diagnostics 63 Test 4: Line Card Test The line card test checks to make sure a line card is installed and working. To begin the test in front panel mode, press the left push-button while the number 4 is displayed in the 7-segmentLED display. When run from the front panel, the pass number is shown on...

T1 Modem Bank 64 Test 7: Sync External Loopback Test This test places the high-speed synchronous channel in external loopback mode. In video mode, this test can be runwith or without an external loopback cable. The external loopback test checks the internally clocked and self clockedtransmission mod...

Component Removal and Installation 65 Component Removal and Installation This section provides replacement instructions for various components. The line card, modem card, power supply,fan assembly, and fuse may be replaced by any on-site personnel of average skill. However, the ribbon cable, syncand...

T1 Modem Bank 66 Line Card Removal and Replacement These instructions are provided in the event that the line card needs to be replaced in the field due to equipmentmalfunction. If the line card is malfunctioning, a message number E6 will flash in the display panel window or theboot will not proceed...

T1 Modem Bank 68 Modem Card Removal and Installation/Replacement Modem Card Removal Modem cards can be “hot swapped”, meaning that no system reset is needed after a modem card is pulled out andreplaced with another modem card. This does not mean that modem boards should be moved from slot to slotwit...

Component Removal and Installation 71 Figure 24 Quick Manager Modem Revision Screen 2. There are two captive fasteners that secure the modem card to the chassis. To remove the modem card, use a flathead screwdriver to loosen the captive fasteners on the malfunctioning modem card. Pull the ejector le...

Component Removal and Installation 73 Power Supply Removal There are two ways to check a power supply failure: • Use QuickManager • Check the LED on the power supply’s printed circuit board. An unlit LED indicates that the power supply hasfailed. • Wear a grounding strap while performing the followi...

Component Removal and Installation 75 Fan Assembly Removal and Replacement If the T1 Modem Bank overheats or exceeds its operating range, the fan is probably malfunctioning. If this is thecase, follow the procedure below. Wear a grounding strap while performing these procedures to prevent electrical...

T1 Modem Bank 76 Fuse Replacement A defective fuse is indicated by a total loss of power to the system. The fuse is located at the rear of the unit behindthe AC power inlet filter. A diagram of the AC power inlet filter is shown below. Figure 27 AC Power Inlet Wear a grounding strap during this proc...

Connections to the Telephone Network 77 Connections to the Telephone Network Figure 28 illustrates connections to the PSTN (Public Switched Telephone Network) using the T1 Modem Bank.With PSTN, a modem modulates serial data into voice-like signals for transmission. At the receiving end of a circuit,...

T1 Modem Bank 78 Alarms on a T1 Span Alarm Reason for Alarm Result of Alarm Red Alarm The T1 Modem Bank is not receiving a valid signalfrom the T1 Line. The T1 Modem Bank sends a “YellowAlarm” down the T1 line, and it will notaccept calls or dial out. Yellow Alarm The Central Office was in a Red Ala...

Physical Specifications 79 Physical Specifications T1 Modem Bank Power Cord Specifications The chassis has a 3-wire power cord. The free end of the 3-wire power cord connects to the 110 VAC (domestic)power source and protective ground. NEMA plug type 5/15P is used for US installations. The North Ame...

T1 Modem Bank 80 T1 Modem Bank Environmental Requirements The T1 Modem Bank meets all functional requirements in this manual when operating in the environment listedbelow: Ambient Temperature 0° C to 40° C Relative Humidity 5% to 90%, non-condensing Altitude 0 to 12,000 feet T1 Modem Bank Rack Speci...

Physical Specifications 81 Daisy Chain Cables Daisy Chain cables have the following attributes: • Twisted pair, overall shield, 28 AWG • Capacitance 15.5 ±3 pF/ft. • Impedance 100 Ω /ft. • Belden 8-wire (4 twisted pair) #9806, or Belden 4-wire (2 twisted pair) #9804 HD-15 subminiature connectors, 1 ...

T1 Modem Bank 82 T1 Modem Bank Certification The T1 Modem Bank is certified to meet the following electromagnetic emissions and safety standards: Emissions: USA: FCC Part 15, Subpart J, Class A Canada: CSA C108.8-M83, Class A Cispr 22, Class A EN55022 Safety: USA: UL 1950 Canada: C22.2 No. 950 Telec...

Glossary 83 Glossary AMI (Alternate Mark Inversion)  a line coding method for T1 spans. bandwidth  the difference between the highest and lowest frequencies in a given range; the maximum data- carrying capacity of a circuit. (Greater bandwidth indicates higher speed data-transfer.) B8ZS (Binary 8-...

Appendix A 85 Appendix A — Memory Conflicts Contention for Memory Addresses Many intelligent peripheral devices require a block of vacant memory addresses on the host computer’s bus for theirown use. These memory addresses may be used to access a dual-ported RAM on the peripheral device to facilitat...

Appendix A 87 ISA Host Adapters The Digi ISA EPC/X host adapter has 1 megabyte of on-board dual-ported RAM which is accessed through a 32K“window”, which can be mapped into any 32K region in the computer’s memory address space (32K byteboundaries end with either 0000h or 8000h). The dual-ported RAM ...

Appendix B 89 Appendix B — Transmission Modes The EPC/X host adapter and the T1 Modem Bank transmit synchronous data in one of 75 modes. These modes arenumbered 0 - 74, and each corresponds to a specific combination of wiring mode (4-Wire or 8-Wire), clockingmethod (internal, external or self-clocki...

Appendix C 91 Appendix C — Terminal Port Cable Some terminals will not transmit data if their CTS (Clear To Send) line is LOW. These terminals must have theirCTS line HIGH or floating to ensure that they will have no problems communicating with the T1 Modem Bank. Thecable shown in Figure 31 can be u...

T1 Modem Bank 92 Appendix D — Specifications and Wiring Pin Diagrams Line Card Connector Figure 32 illustrates an RJ-45 plug that can be inserted into the T1 line card connector. Figure 32 RJ-45 Plug The following are pin assignments for the T1 line interface and the DSX-1 line interface. Signal Pin...

Appendix D 93 Connector for Sync Channels The following is a pin out of the serial channel of SCA and sync link input Signal Pin Signal Pin TxD+ 1 TxD- 2 RTS+ 3 RTS- 8 TxC- 4 TxC+ 5 RxD- 6 RxD+ 7 RxC- 9 RxC+ 10 CTS- 14 CTS+ 15 GND 12 reserved 11 Terminal Port The following pin connections are used f...

T1 Modem Bank 94 Appendix E — Generic T1 Modem BankWiring Modes There are three basic wiring modes for connecting T1 Modem Bank units to an EPC/X host adapter or to each other:Eight-Wire Direct, Four-Wire Direct (also called Four-Wire Self-Clocking), and Eight-Wire Synchronous Modem(or Eight-Wire Ex...

Appendix E 95 Four-Wire Direct Wiring Four-Wire Direct wiring connects T1 Modem Bank units where longer synchronous cable runs are necessary. Whilenot as fast as Eight-Wire connections (the maximum data transfer rate is 1.8 megabaud 1 ), this wiring method is more economical, and is sufficient in al...

T1 Modem Bank 96 Restrictions on Daisy Chain Cable Lengths The maximum length of a daisy chain is dependent upon the synchronous data rate. Table 8 lists the maximumcumulative daisy chain cable lengths for various baud rates. For example, to run a synchronous line at 10 megabaud,the total length of ...

Appendix E 97 Eight-Wire Synchronous Modem Wiring Eight-Wire Synchronous Modem wiring allows T1 Modem Bank units to be installed in remote locations andconnected to the EPC/X host adapter via RS-232 or RS-422 synchronous modems. The EPC/X host adapter and the T1 Modem Bank have been designed so that...

Appendix F 99 Appendix F — Modem AT Command Set Default values of command parameters, if applicable, areindicated by an asterisk (*). Basic AT Commands A/ Repeat Last Command Repeats execution of the previous command string. “ A/ ” must not be preceded with AT, or followed by pressing <Enter>....

T1 Modem Bank 118 Class 1 FAX Commands The Digi Modem/Xem supports FAX commands conforming to EIA standard 578. These commands are given herewith short descriptions; complete descriptions are given in the standard, available from the Electronic IndustryAssociation. It also supports ECM mode and V.17...

T1 Modem Bank 120 Class 2 FAX Commands +FAA= n FAX Auto Answer Enable Command Syntax: +FAA= <value> 0: Answer as FAX modem of type specified by +FCLASS . 1: Automatically determine whether to answer as FAX or data modem. +FAXERR T.30 Session Error Report Command syntax: +FAXERR Response syntax...

Appendix F 127 Class 2 FAX Responses +FCFR Indicate Confirmation to Receive. Syntax: +FCFR Usage: Indicates the reception of an acceptable TCF training burst and valid DCS signal from the remote machine. +FCON Facsimile Connection Response. Syntax: +FCON Usage: Indicates connection with a FAX machin...

T1 Modem Bank 128 S Registers All bit-mapped registers are read-only. The appropriate AT command which controls the relevant bits in the S register should be used to change the value. The factory default values are stored in ROM and are loaded into the active configuration at powerup or by the ATZ n...

Appendix F 129 S Register Definitions S0 Autoanswer Ring Count Sets the number of the rings required before the modem automatically answers a call. Setting this register to zerodisables autoanswer mode. Range: 0-255Default: 000Units: rings S1 Ring Count The value of S1 is incremented with each ring....

Appendix F 143 Result Codes The modem connect message is controlled by ATQ , ATV , ATW , ATX , and AT\V . Display Format Options If ATQ1 is selected, there will be no connect message at all. The following description is true only if ATQ0 is selected. If ATX0 is selected, “CONNECT” or “1” will be use...

T1 Modem Bank 144 Extended Message Options AT\V1 affects only ATW0 and ATW2 commands. If ATW0 , ATV1 , and AT\V0 are selected and the DTE rate is 57600 bits/s, then “CONNECT 57600” will be displayed regardless of protocol. If ATW0 , ATV1 , and AT\V1 , are selected and the DTE rate is 57600 bits/s, t...

T1 Modem Bank 146 Negotiation Progress Messages 40 CARRIER 300 The modem returns this result code when either a V.21 or Bell 103 carrier has been detected on the line, andcarrier reporting has been enabled. (See W1 .) 42 CARRIER 75/1200 The modem sends this result code when the V.23 backward channel...

Index 149 Index AT Command Set, 99 Cables Terminal Port, 91 Clear To Send, 44Configuration EPC/X Host Adapter, 20Line Card, 58, 61T1 Modem Bank, 41 Contention Memory addresses, 85 CTS. See Clear To Send Daisy Chain, 16Daisy Chain Wiring, 94 Eight-Wire Direct, 94Eight-Wire Synchronous Modem, 97Four-W...