Page 2 - Trademarks; COPYRIGHT
COMSPHERE –48 Vdc Central Office Power Unit A May 1998 3000-A2-GB41-40 COMSPHERE– 48 Vdc Central Office Power Unit Installation Guide3000-A2-GB41-40 5th Edition (May 1998) Changes and enhancements to the product and to the information herein will be documented and issued as a new release. Warranty, ...
Page 3 - Important Safety Instructions
Safety Instructions B 3000-A2-GB41-40 May 1998 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 three-wire grounding type plug — a plugwhich has a grounding pin. This is...
Page 4 - Notices; To Users of Digital Apparatus in Canada:
COMSPHERE –48 Vdc Central Office Power Unit C May 1998 3000-A2-GB41-40 Notices ! WARNING: This equipment has been tested and found to comply with the limits for a Class A digital device,pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protectionagainst harmful in...
Page 5 - Table of Contents; Preface
i 3000-A2-GB41-40 May 1998 Table of Contents Preface Objectives and Reader Assumptions v . . . . . . . . . . . . . . . . . . . . . . . . . Abstract v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related Documents v . . . . . . . . . . . . . . . . . . ...
Page 6 - Troubleshooting and Maintenance; Interface Connections
COMSPHERE –48 Vdc Central Office Power Unit ii May 1998 3000-A2-GB41-40 3. Troubleshooting and Maintenance Overview 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indicators and Controls 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 7 - List of Figures; Figure
iii 3000-A2-GB41-40 May 1998 List of Figures Figure Page 1-1. Central Office (CO) Power Unit with One Power Module 1-3 . . . . . . . . . . . . . . . . . . . . 1-2. Central Office (CO) Power Unit with Two Power Modules 1-3 . . . . . . . . . . . . . . . . . . . 2-1. Installing the Optional Second Powe...
Page 8 - List of Tables; Table
COMSPHERE –48 Vdc Central Office Power Unit iv May 1998 3000-A2-GB41-40 List of Tables Table Page 1-1 Technical Specifications for Central Office (CO) Power Unit 1-4 . . . . . . . . . . . . . . . . . 2-1 Maximum Ambient Temperatures Permitted 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 9 - Abstract
v 3000-A2-GB41–40 May 1998 Preface Objectives and ReaderAssumptions This guide contains installation information for the COMSPHERE – 48 Vdc Central Office (CO) Power Unit which is designed to be used with COMSPHERE 3000 Series Carriers. It is assumed that you are familiar with the functional operati...
Page 11 - Introduction
1-1 3000-A2-GB41-40 May 1998 Introduction Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Feature 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 12 - NOTE; Features
COMSPHERE –48 Vdc Central Office Power Unit 1-2 May 1998 3000-A2-GB41-40 NOTE Customer-supplied cableassemblies must comply withitems 5 and 6 of the Important Safety Instructions at the front ofthis guide. For more information on the alarm cables and NMSadapter cable, see Appendix A of this guide. P...
Page 14 - Technical Specifications
COMSPHERE –48 Vdc Central Office Power Unit 1-4 May 1998 3000-A2-GB41-40 Technical Specifications Technical specifications for the CO Power Unit (which includes one power module) are listed in Table 1-1 . Table 1-1 (1 of 2) Technical Specifications for Central Office (CO) Power Unit Technical Specif...
Page 15 - Technical Specifications for Central Office (CO) Power Unit; APPROVALS
Introduction 1-5 3000-A2-GB41-40 May 1998 Table 1-1 (2 of 2) Technical Specifications for Central Office (CO) Power Unit Technical Specifications Criteria WEIGHT CO Power Unit (includes one power module) CO Power Unit (includes two power modules) Power Module Air Filter 10.6 pounds (4.8 kg) 15.8 pou...
Page 17 - Installation; Basic Mode of Operation
2-1 3000-A2-GB41-40 May 1998 Installation Overview 2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation Considerations 2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 18 - Independent Mode of Operation
COMSPHERE –48 Vdc Central Office Power Unit 2-2 May 1998 3000-A2-GB41-40 directly above the bottom carrier should have its powermodule installed in the right side of its CO power tray.Then, the next carrier directly above should have itspower module installed in the left side of its CO powertray, an...
Page 19 - Redundant Mode of Operation; Alarm Forwarding to a 6800 Series NMS
Installation 2-3 3000-A2-GB41-40 May 1998 Redundant Mode of Operation In the Redundant mode of operation, both power modules share the load (that is, both modules supplypower to all slots in the carrier). If one power modulefails, the remaining power module assumes the full loadof the carrier. Opera...
Page 20 - CO Power Unit Installation; Procedure
COMSPHERE –48 Vdc Central Office Power Unit 2-4 May 1998 3000-A2-GB41-40 CO Power Unit Installation The CO Power Unit is installed at the bottom of the carrier. You will need a large, flat-blade screwdriver toinstall the CO Power Unit and a medium, flat-bladescrewdriver to set the option straps. NOT...
Page 21 - Figure 2-1. Installing the Optional Second Power Module
Installation 2-5 3000-A2-GB41-40 May 1998 98-13751-02 Po wer Fan Alar m 3000 DC P ower Module Po wer Fan Alar m 3000 DC P ower Module Power Module Provided With CO Power Unit Optional Second Power Module Figure 2-1. Installing the Optional Second Power Module
Page 22 - Setting the Option Straps; Basic Mode; Settings for Basic Mode
COMSPHERE –48 Vdc Central Office Power Unit 2-6 May 1998 3000-A2-GB41-40 Setting the Option Straps The option straps are screw switches that are set by raising (loosening) or lowering (tightening) the screw tobreak or make the contact. There are five option straps, S1through S5, on the CO Power Unit...
Page 23 - Independent Mode
Installation 2-7 3000-A2-GB41-40 May 1998 Independent Mode If you want to operate in Independent mode and you plan to use either one or two – 48 Vdc power sources,configure the option straps as shown in Table 2-3 . Table 2-3 Settings for Independent Mode S1 Raised S2 Raised S3 Raised S4 Raised S5 Ra...
Page 24 - Installing the CO Power Unit
COMSPHERE –48 Vdc Central Office Power Unit 2-8 May 1998 3000-A2-GB41-40 Installing the CO Power Unit If installing an SDCP in the carrier in which you plan to install a CO Power Unit, be sure to install the SDCPribbon cable that provides power to the SDCP beforeinstalling the CO Power Unit. (For in...
Page 26 - Providing Power to a CO Power Unit
COMSPHERE –48 Vdc Central Office Power Unit 2-10 May 1998 3000-A2-GB41-40 P20 P19 497-13673-01 P3 (OUTPUT) CAPTIVE SCREW P6 (OUTPUT) –48VDC B (INPUT) CAPTIVE SCREW BACKPLANE CONNECTOR CABLE ASSEMBLIES NETWORK MANAGEMENT CONNECTOR ALARM B ALARM A –48VDC A (INPUT) Figure 2-4. COMSPHERE 3000 Series Car...
Page 30 - Figure 2-7. Using One Power Source and Two Input Power Cables for
COMSPHERE –48 Vdc Central Office Power Unit 2-14 May 1998 3000-A2-GB41-40 496-13676-01 –48 Vdc Power Source A –48V GRD Ground Returns Optional Fuses –48 Vdc B –48 Vdc A AMP Connectors Figure 2-7. Using One Power Source and Two Input Power Cables for Independent Mode or Redundant Mode
Page 31 - Installing an SDCP
Installation 2-15 3000-A2-GB41-40 May 1998 Installing an SDCP If you want to mount an SDCP and the SDCP ribbon cable is not installed, remove the CO Power Unit from thecarrier and follow the instructions in the SDCP RibbonCable Installation section in the COMSPHERE3000 Series Carrier Installation Ma...
Page 34 - Figure 2-9. Connecting an NMS Adapter Cable to a Modular 3611 DSU
COMSPHERE –48 Vdc Central Office Power Unit 2-18 May 1998 3000-A2-GB41-40 To connect the alarm contacts to the external leads of a Modular 3611 DSU (configured for alarm forwarding): " Procedure 1. At the rear of the carrier, plug the 6-wire modular plug end of the NMS adapter cable into the J1c...
Page 35 - Figure 2-10. Connecting an NMS Adapter Cable to a Modular 3611 DSU
Installation 2-19 3000-A2-GB41-40 May 1998 3. If there is a V.35 cable on the bottom connector, labeled V.35 (3600/3500), of a Modular 3611DSU’s rear connector plate, then plug the DB25male end of the NMS adapter cable into the top connector of the rear connector plate. Note that theDB25 female end ...
Page 37 - Figure 2-11. Air Filter Brackets Installation
Installation 2-21 3000-A2-GB41-40 May 1998 AIR FILTER BRACKET AIR FILTER BRACKET BOTTOM VIEW OF CO POWER TRAY GRILL ON CO POWER TRAY #6 PHILLIPS-HEAD SCREWS #6 PHILLIPS-HEAD SCREWS 491-13697 Figure 2-11. Air Filter Brackets Installation
Page 39 - Indicators and Controls
3-1 3000-A2-GB41-40 May 1998 Troubleshooting and Maintenance Overview 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indicators and Controls 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 40 - Troubleshooting
COMSPHERE –48 Vdc Central Office Power Unit 3-2 May 1998 3000-A2-GB41-40 Troubleshooting If operating in the Basic mode and the power module’s Power LED is red, check the DCEs in the carrier. If theLEDs on the DCEs are not lit, try resetting the powermodule. (Reset the power module by removing the p...
Page 41 - CAUTION
Troubleshooting and Maintenance 3-3 3000-A2-GB41-40 May 1998 Power Module ReplacementInstructions If the power module fails, you should replace it immediately. In the Redundant mode of operation, youcan replace a failed power module without disruptingservice to the carrier. In the Independent mode o...
Page 42 - Preventive Maintenance
COMSPHERE –48 Vdc Central Office Power Unit 3-4 May 1998 3000-A2-GB41-40 If an SDCP is mounted on this carrier, remove theSDCP by loosening the two captive screws anddisconnecting the SDCP cable. Set the SDCPaside for mounting later on. Loosen the twocaptive screws on the failed power module. Then,r...
Page 43 - DC Inputs
A-1 3000-A2-GB41–40 May 1998 Interface Connections Overview A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC Inputs A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 44 - Pin Assignments of the DC Inputs
COMSPHERE –48 Vdc Central Office Power Unit A-2 May 1998 3000-A2-GB41-40 J1 P6 P3 P1 –48VDC A P5 –48VDC B ALARM B ALARM A P4 P2 1 1 8 1 1 1 1 8 1 Network Management Connector P6 Connector P3 Connector –48 Vdc A Connector Alarm A Alarm B –48 Vdc BConnector 496-13699-01 –48 Vdc Common –48 Vdc Common F...
Page 45 - AMP Part Numbers; Figure A-2. Connector Housing and Contact
Interface Connections A-3 3000-A2-GB41–40 May 1998 Table A-2 AMP Part Numbers Wire Size Insulation Diameter Contact Number 24 –18 AWG 04 ″ –10 ″ 350689-1 20 –14 AWG 06 ″ –13 ″ 350550-1 1 20 –14 AWG 13 ″ –20 ″ 350551-1 12 –10 AWG 20 ″ max. 640310-3 1 Six contacts are provided in the installation kit....
Page 46 - CO Alarm System Outputs; Pin Assignments for the
COMSPHERE –48 Vdc Central Office Power Unit A-4 May 1998 3000-A2-GB41-40 CO Alarm System Outputs Both major (power) and minor (fan) alarms can be sent to the CO alarm system via the Alarm A and Alarm Boutput connectors. Figure A-1 illustrates these connectors. The connector on the CO Power Unit’s ba...
Page 47 - NMS Alarm Outputs
Interface Connections A-5 3000-A2-GB41–40 May 1998 NMS Alarm Outputs CO alarms can be sent to a Modular 3611 DSU (which will then notify a 6800 Series NMS) via a 6-wire modularjack on the CO Power Unit’s backplane (see Figure A-1 ). (The Modular 3611 DSU must be configured to forwardalarms to a 6800...
Page 49 - Glossary
Glossary-1 3000-A2-GB41-40 May 1998 Glossary Basic mode A mode of operation in which the single power module in the CO Power Unitsupplies power to the entire carrier. carrier The rack mounting that contains 17 slots: 1 control slot and 16 DSU or modemslots. data communicationequipment (DCE) A device...
Page 51 - Index
Index-1 3000-A2-GB41-40 May 1998 Index A adapter cable, NMS, A-6 pin assignments, A-5 air filter, 1-4 brackets installation, 2-22installation, 2-21physical dimensions, 1-4weight, 1-5 alarm contacts, connecting to alarm system, 2-17NMS, 2-18 forwarding, 2-3outputs, NMS, A-5relay contacts, 1-5system c...
