08-01023-01 Elastic Networks ELMo 120 Multiplexer Installation and Maintenance Guide Revision: 2.
Elastic Networks ELMo 120 Multiplexer Installation and Maintenance Guide Publication Number: 08-01023-01 Revision: 2.01 Publication Date: November 1999 1999 Elastic Networks All rights reserved All information contained in this document is subject to change without notice. Elastic Networks reserves the right to make changes to equipment design or program components, as progress in engineering, manufacturing methods, or other circumstances may warrant. EtherLoop is a trademark of Elastic Networks.
ii Revision 2.
iii Publication history November 1999 Document release for general publication. Revision 2.
iv Revision 2.
v Contents About this document vii Audience Documentation references vii vii Introducing the ELMo 120 Multiplexer 1-1 Chapter Contents ELMo 120 Multiplexer installation overview ELMo 120 Multiplexer shelf ELMo 120 Multiplexer components Power card Ethernet 10/100Base-T Switch card Modem cards Voiceband filter shelf Voiceband filtershelf connectors 1-1 1-1 1-2 1-4 1-4 1-4 1-4 1-5 1-6 ELMo 120 Multiplexer installation and testing 2-1 Chapter task list Task: Installing the ELMo 120 Multiplexer modem
vi Contents ELMo 120 Multiplexer maintenance 3-1 Maintenance guidelines Wiring conditions Cable connections ELMo 120 Multiplexer equipment installation Data network equipment configuration Equipment failure Maintenance checklists 3-2 3-2 3-2 3-2 3-2 3-2 3-3 Appendix A - ELMo 120 Multiplexer installation requirements A-1 ELMo 120 Multiplexer support equipment Bay requirements and specifications Power specifications Grounding environment specifications Network support equipment ELMo 120 Multiplexer insta
vii About this document 1- This document contains the installation and maintenance procedures for the ELMo 120 Multiplexer shelf. Audience This document is intended for installation technicians charged with installing and maintaining the ELMo 120 Multiplexer in an EtherLoop system. Revision 2.
viii About this document Revision 2.
1-1 Introducing the ELMo 120 Multiplexer 1This document describes the installation and maintenance procedures for the ELMo 120 Multiplexer. The ELMo 120 Multiplexer shelf is the backbone component of an EtherLoop system, supporting 120 Elite modems in voice/data or data-only applications. Chapter Contents This chapter includes the following information.
1-2 Introducing the ELMo 120 Multiplexer ELMo 120 Multiplexer shelf One ELMo 120 Multiplexer shelf supports 120 EtherLoop lines. The ELMo 120 Multiplexer shelf contains the following components: • Power card • Ethernet 10/100Base-T switch card • EtherLoop 12:1 multiplexer modem cards (10) Figure 1-1 shows the front view of the ELMo 120 Multiplexer shelf. Figure 1-2 shows the connections on the ELMo 120 Multiplexer shelf backplane.
Introducing the ELMo 120 Multiplexer 1-3 Figure 1-2 ELMo 120 Multiplexer backplane connections ELMo 120 Modem Connectors 10 9 8 7 6 5 4 3 2 1 J2 J1 J2 J1 J2 J1 J2 J1 J2 J1 Power Not Used Revision 2.
1-4 Introducing the ELMo 120 Multiplexer ELMo 120 Multiplexer components This section describes the function and purpose of each of the ELMo 120 Multiplexer component cards. Power card The Power card converts the -48 V dc power feed to the power levels used by the ELMo 120 Multiplexer components. Ethernet 10/100Base-T Switch card The Ethernet 10/100Base-T switch card collects the Ethernet traffic generated by the ELMo 120 Multiplexer modem cards and passes it to the local data network.
Introducing the ELMo 120 Multiplexer 1-5 Voiceband filter shelf l The voiceband filter shelf is used with the ELMo 120 Multiplexer in EtherLoop applications where voice service is required. The voiceband filter cards remove out-of-voiceband signals from the voiceband traffic between the Elite modems and the external voice facility equipment. The voiceband filter shelf contains one filter card for each ELMo 120 Multiplexer modem card. Figure 1-3 shows the voiceband filter shelf.
1-6 Introducing the ELMo 120 Multiplexer Voiceband filtershelf connectors The voiceband filter shelf contains three rows of connectors, all located on the backplane of the shelf. The top row supports the connection from the facility external voice network (PSTN or PBX). The middle row supports the connection from the customer premise equipment (CPE) lines. The bottom row supports the connection from the ELMo 120 Modem cards. Figure 1-4 shows the voiceband filter shelf.
2-1 ELMo 120 Multiplexer installation and testing 2This chapter contains the procedures for installing and testing the ELMo 120 Multiplexer. Chapter task list This chapter includes the following tasks. Revision 2.
2-2 ELMo 120 Multiplexer installation and testing Task: Installing the ELMo 120 Multiplexer modem and voiceband filter shelves Use this procedure to install the ELMo 120 Multiplexer modem shelf and voiceband filter shelf. The voiceband filter shelf is not required in data-only applications.
ELMo 120 Multiplexer installation and testing 2-3 Installing the ELMo 120 Multiplexer modem and voiceband filter shelves (continued) Action Step Action 1 Select and apply antistatic protection. CAUTION Antistatic protection required The ELMo 120 Multiplexer shelves are shipped with the circuit packs installed. When handling any circuit pack, you must use some form of antistatic protection. The discharge of static electricity can damage the ELMo 120 circuit packs.
2-4 ELMo 120 Multiplexer installation and testing Installing the ELMo 120 Multiplexer modem and voiceband filter shelves (continued) Step Action 4 Using the shelf mounting screws provided in the shelf hardware kit, fasten the left and right side flanges to the bay as shown in Figure 2-2. Figure 2-2 ELMo 120 Multiplexer shelf fastened to bay Shelf mounting screw (4) Shelf ground stud ELMo 120 side flange —continued— Revision 2.
ELMo 120 Multiplexer installation and testing 2-5 Installing the ELMo 120 Multiplexer modem and voiceband filter shelves (continued) Step Action 5 Proceed acording to the following table: If the application is Then voice/data Align and mount a voiceband filter shelf directly above the ELMo 120 modem shelf as shown in Figure 2-3. data-only Do not install the voiceband filter shelf. End of procedure.
2-6 ELMo 120 Multiplexer installation and testing Task: Connecting power to the ELMo 120 Multiplexer modem shelf Use this procedure to install the power feeds from a -48 V dc power source to the ELMo 120 Multiplexer modem shelf. Note: The voiceband filter shelf does not require a power feed. Requirements This procedure requires the following: • volt-ohm meter • ELMo 120 Multiplexer power harness • -48 V dc power fuse bay or dc rectifier Power supply and wiring specifications are described in Appendix A.
ELMo 120 Multiplexer installation and testing 2-7 Connecting power to the ELMo 120 Multiplexer modem shelf 3 With the power supply turned off, connect the leads of the ELMo 120 power harness to the -48 V dc power source according to the following table: ELMo 120 Multiplexer power leads Power source Terminal connection Red -48 V dc supply Negative (-) Black -48 V dc return Positive (+) ! CAUTION Serious equipment damage Reversed polarities on the power feed can irreparably damage the ELMo 120 Mul
2-8 ELMo 120 Multiplexer installation and testing Connecting power to the ELMo 120 Multiplexer modem shelf (continued) Step Action 4 Route the other end of the ELMo 120 Multiplexer power harness to the power connector on the backplane of the ELMo 120 Multiplexer modem shelf. 5 Connect the ELMo 120 Multiplexer power harness to the matching connector on the ELMo 120 Multiplexer backplane. The connector fits only one way (see Figure 2-5).
ELMo 120 Multiplexer installation and testing 2-9 Connecting power to the ELMo 120 Multiplexer modem shelf (continued) Step Action 6 Turn ON the -48 V dc power supply. 7 Using an appropriate volt-ohm meter, test the power feed at the shelf backplane connection. Verify that the red power feed at the shelf is the -48 V dc supply. The meter should read between -46 and -56 V dc. 8 Check and ensure that the toggle switch on the Power card is in the OFF position.
2-10 ELMo 120 Multiplexer installation and testing Task: Installing the data network connection Use this procedure to connect the ELMo 120 Multiplexer to the Ethernet data network.
ELMo 120 Multiplexer installation and testing 2-11 Installing the data network connection (continued) Action Step Action 1 Connect one end of the Category 5 cable to the Ethernet 10/100Base-T data network supporting the ELMo 120. 2 Route the other end of the cable to the Ethernet 10/100Base-T Switch card slot on the front of the ELMo 120 Multiplexer modem card shelf. Figure 2-6 shows a typical ELMo 120 data network connection requirements.
2-12 ELMo 120 Multiplexer installation and testing Installing the data network connection (continued) Step Action 3 Connect the RJ-45 plug to one of the three RJ-45 receptacles on the front faceplate of the Ethernet 10/100Base-T Switch card. See Figure 2-7. Figure 2-7 ELMo 120 Switch card connections 10/100 Base-T Uplink 10 Base-T port 4 Secure the cable in accordance with local office procedures. —continued— Revision 2.
ELMo 120 Multiplexer installation and testing 2-13 Installing the data network connection (continued) Step Action 5 Repeat steps 1-4 for the second and third 10/100 Base-T ELMo 120 Multiplexer connections (if required). Be sure to connect the ELMo 120 Multiplexer data connections to separate LAN segments. ! CAUTION Potential service loss Do not connect the second or third port on the ELMo 120 Multiplexer to the same hub used to support the first.
2-14 ELMo 120 Multiplexer installation and testing Task: Installing ELMo 120 Multiplexer connections for data-only service Use this procedure to connect the ELMo 120 Multiplexer to the EtherLoop cross-connect in applications where no voice service is required.
ELMo 120 Multiplexer installation and testing 2-15 Installing ELMo 120 Multiplexer connections for data-only service (continued) Step Action 3 Connect the J1/J2 split connectors on the ELMo 120 Multiplexer cable harness to the matching J1/J2 modem connectors of two adjacent modem cards in the ELMo 120 Multiplexer shelf. See Figure 2-8. Figure 2-8 ELMo 120 Multiplexer data-only connections Modem 2 J2 Modem 1 Not Used J1 Not Used (ELMo 120 Modem Connectors 7-10 not shown) —continued— Revision 2.
2-16 ELMo 120 Multiplexer installation and testing Installing ELMo 120 Multiplexer connections for data-only service (continued) Step Action 4 Connect the Amp-Champ 25-pair connector of the ELMo 120 Multiplexer cable harness to the matching Amp-Champ 25-pair connector on the intermediate cable. See Figure 2-9.
ELMo 120 Multiplexer installation and testing 2-17 Task: Installing ELMo 120 Multiplexer connections for voice/data service Use this procedure to connect the ELMo 120 Multiplexer to the EtherLoop cross-connect in voice/data applications.
2-18 ELMo 120 Multiplexer installation and testing Installing ELMo 120 Multiplexer connections for voice/data service (continued) 5 Connect the two split connectors of an ELMo 120 cable harness to the "Voice Network" connectors of two adjacent filter cards in the voiceband filter shelf. See Figure 2-10.
ELMo 120 Multiplexer installation and testing 2-19 Installing ELMo 120 Multiplexer connections for voice/data service (continued) 7 Connect the two split connectors of a second ELMo 120 cable harness to the "Line CPE" connectors of the same two filter cards connected in step 5. See Figure 2-12.
2-20 ELMo 120 Multiplexer installation and testing Installing ELMo 120 Multiplexer connections for voice/data service (continued) 9 Connect the "Filter" connector on the ELMo 120 Multiplexer data jumper cable to the "Data Modem" connector on each filter card. Figure 2-14 ELMo 120 Multiplexer data jumper connections on the filter shelf J2 J1 Data Modem Connectors 5 4 3 2 1 (Filter shelf connectors 6-10 not shown) —continued— Revision 2.
ELMo 120 Multiplexer installation and testing 2-21 Installing ELMo 120 Multiplexer connections for voice/data service (continued) 10 Connect the "Modem" connector on the ELMo 120 Multiplexer data jumper cable to the appropriate J1/J2 modem connectors for each modem card. Figure 2-15 shows the ELMo 120 Multiplexer the complete voice/data connections for one pair of Modem cards. Figure 2-15 ELMo 120 Multiplexer voice/data connections Filter Shelf 8 9 10 6 7 2 3 4 5 1 Voice Net.
2-22 ELMo 120 Multiplexer installation and testing Task: Installing the connections to the external voice facility Use this procedure to connect the ELMo 120 Multiplexer lines to an external voice facility. Requirements This procedure requires the following tools and materials: • 24 jumper wires (24 AWG) for each ELMo 120 Multiplexer modem card installed (240 wires for a full shelf) • cross-connect punch-down tool Appendix B contains the specifications for the cables and wiring required in this procedure.
ELMo 120 Multiplexer installation and testing 2-23 Installing the connections to the external voice facility (continued) Step Action 3 Remove the Tip and Ring jumper connections from the line. 4 Terminate the Tip/Ring jumper wires from the cross-connect of the external voice facility to the "Voice" side of the EtherLoop cross-connect. 5 Terminate the jumper wires from the CPE Tip/Ring connections to the "EtherLoop" side of the cross-connect block.
2-24 ELMo 120 Multiplexer installation and testing Testing the ELMo 120 Multiplexer installation Testing an ELMo 120 Multiplexer installation in an EtherLoop system includes the following tasks: • Testing voice connectivity (see page 2-27) • Testing data connectivity (see page 2-28) • EtherLoop end-to-end testing (see page 2-29) The following sections contain testing-related information followed by the ELMo 120 Multiplexer testing tasks.
ELMo 120 Multiplexer installation and testing 2-25 Figure 2-16 ELMo 120 voice/data system test points Main Distribution Frame Customer Premise cross-connect PSTN or PBX cross-connect Tip/Ring Jumper Pairs RJ-11 RJ-45 Elite Modem Circuit Path-OUT Intermediate cable Circuit Path-IN PSTN/PBX RJ-11 Wall Jack Test Point #1 Intermediate cable Test Point #2 EtherLoop cross-connect Male Male Unshielded 25-pair AMP-Champ type Interconnect-Voice Female Unshielded 25-pair AMP-Champ type Female Interco
2-26 ELMo 120 Multiplexer installation and testing Figure 2-17 ELMo 120 data-only system test points Main Distribution Frame Customer Premise cross-connect Tip/Ring Jumper Pairs Test Point #1 RJ-11 Wall Jack RJ-11 RJ-45 Elite Modem Circuit Path-OUT Intermediat e cable Test Point #2 EtherLoop cross-connect Male Unshielded 25-pair AMP-Champ type Female Interconnect-Line ELMo 120 Switch Card 10/100Base-T RJ 45 Wide Area Network EtherLoop Hub LAN/WAN Term. LAN Router Revision 2.
ELMo 120 Multiplexer installation and testing 2-27 Task: Testing voice connectivity This procedure checks the voice connectivity in ELMo 120 Multiplexer voice/data applications. Requirements The following is required to do this procedure: • external voice facility point-of-presence equipment installed • Tip/Ring assignments • standard telecommunications hand-test telephone set Action Step Action 1 Identify the voice line being tested.
2-28 ELMo 120 Multiplexer installation and testing Task: Testing data connectivity This procedure verifies data connectivity from the customer premise crossconnect and the ELMo 120 shelf. Requirements The following is required to do this procedure: • Elite modem with power adapter and extension cord (if necessary) Action Step Action 1 Identify the data connections being tested at the EtherLoop cross-connect block and the Modem card on the ELMo 120 Multiplexer shelf.
ELMo 120 Multiplexer installation and testing 2-29 Task: EtherLoop end-to-end testing This procedure verifies the EtherLoop system installation, including simultaneous voice and data EtherLoop tests from the Elite modem to the voice and data networks.
2-30 ELMo 120 Multiplexer installation and testing EtherLoop end-to-end testing (continued) Action Step Action 1 Identify the modem pair being tested. 2 Switch the power switch on the ELMo 120 Multiplexer Power card to the ON position. 3 Verify dial tone on the room phone. 4 If the laptop is running, shut it down. 5 Connect the Ethernet PC card RJ-45 adapter cable to the Ethernet PC card.
3-1 ELMo 120 Multiplexer maintenance 3- Chapter contents This chapter contains the following information. Revision 2.
3-2 ELMo 120 Multiplexer maintenance Maintenance guidelines The following factors can cause service problems in an EtherLoop system installation: • poor wiring conditions • incomplete cable connections • improper ELMo 120 Multiplexer equipment installation • improper data network equipment configuration • equipment failure The following sections briefly describe each of these potential problem causes.
ELMo 120 Multiplexer maintenance 3-3 Maintenance checklists This section contains the maintenance checklists for resolving EtherLoop service problems. Voice and data connectivity maintenance in facility room Revision 2.
3-4 ELMo 120 Multiplexer maintenance End-to-end maintenance checklist Revision 2.
A-1 Appendix A - ELMo 120 Multiplexer installation requirements A- This appendix describes the facility requirements for the ELMo 120 Multiplexer shelf and voiceband filter shelf. Chapter Contents This chapter contains the following information. Revision 2.
A-2 Appendix A - ELMo 120 Multiplexer installation requirements ELMo 120 Multiplexer support equipment Equipment and materials that must be installed to support the ELMo 120 Multiplexer shelf include the following: • telecommunications bay/rack to support the ELMo 120 Multiplexer shelf and the auxiliary filter shelf (if applicable) • -48 V dc power supply • grounding facility • network support equipment The following sections list the specifications and requirements for each of these components.
Appendix A - ELMo 120 Multiplexer installation requirements A-3 Power specifications Table A-1 shows the power specifications for the ELMo 120 Multiplexer shelf. Table A-1 ELMo 120 power specifications Power Specification ELMo 120 Multiplexer value Supply -48 V dc (nominal) -46 to -56 V dc (required) Conversion and distribution 12 V dc 5.0 V dc 3.3 V dc 2.
A-4 Appendix A - ELMo 120 Multiplexer installation requirements CBN grounding environment In most facilities using the CBN environment, the bay containing the ELMo 120 shelf should be grounded to a frame ground bar (FGB) as the common ground point using a 6 AWG, stranded, ground conductor. In smaller facilities where no FGB exists, the building principal ground (BPG) must be used.
Appendix A - ELMo 120 Multiplexer installation requirements A-5 ELMo 120 Multiplexer installation accessory requirements Table A-2 lists the cables and accessories required for the ELMo 120 installation. See Appendix B for more information about the ELMo 120 Multiplexer cables.
A-6 Appendix A - ELMo 120 Multiplexer installation requirements ELMo 120 Multiplexer installation tools and materials The tools and materials required to install the ELMo 120 shelf include the following: • 4-bay mounting screws • 1-medium Phillips-head screwdriver • 1-cross-connect block matching the existing blocks used in the facility MDF, such as Siemon R66, BIX, or AT&T 110 cross-connect blocks • 1-wiring punch-down tool intended for use with the cross-connect block • cross-connect jumper wires (24 AWG
Appendix A - ELMo 120 Multiplexer installation requirements A-7 ELMo 120 installation site requirements Table A-5 presents the installation site requirements for the ELMo 120 shelf.
A-8 Appendix A - ELMo 120 Multiplexer installation requirements Revision 2.
B-1 Appendix B - ELMo 120 Multiplexer cabling specifications B- This appendix contains the specifications for the cabling used with the ELMo 120 Multiplexer shelf. Chapter Contents This chapter includes the following information. Revision 2.
B-2 Appendix B - ELMo 120 Multiplexer cabling specifications ELMo 120 Multiplexer cable specifications This section presents the cable specifications for the cables used in the ELMo 120 Multiplexer installation. ELMo 120 Multiplexer cable harness Figure B-1 shows the ELMo 120 Multiplexer cable harness.
Appendix B - ELMo 120 Multiplexer cabling specifications B-3 Table B-1 ELMo 120 Interconnect cable harness - pin and pair assignments Tip/ Ring Pair Pins Color code Connection Assignment Tip/ Ring Pair Pins Color Code Connection Assignment 1 1 W/BL J1/Tip 13 13 BK/G J2/Tip 26 BL/W J1/Ring 38 G/BK J2/Ring 2 W/O J1/Tip 14 BK/BR J2/Tip 27 O/W J1/Ring 39 BR/BK J2/Ring 3 W/G J1/Tip 15 BK/S J2/Tip 28 G/W J1/Ring 40 S/BK J2/Ring 4 W/BR J1/Tip 16 Y/BL J2/Tip 29
B-4 Appendix B - ELMo 120 Multiplexer cabling specifications ELMo 120 Multiplexer data jumper cable Figure B-2 shows the ELMo 120 Multiplexer data jumper cable. The ELMo 120 Multiplexer data jumper cables are used to pass data traffic from the filter shelf ELMo 120 Multiplexer shelf in voice/data applications. Data jumper cable labeling The data jumper connectors are labeled "Filter" and "Modem" to indicate with which shelf the connector is used. The data jumper connectors are not interchangeable.
Appendix B - ELMo 120 Multiplexer cabling specifications B-5 Intermediate cable specifications ELMo 120 Intermediate cables can be obtained "off-the-shelf" from a variety of vendors, as long as cables chosen meet the following specifications: • • Category 5 bundled 25-pair cable made of 24 AWG wires Unshielded, 25-pair female connector (Amp-Champ or equivalent) on the end connecting to the ELMo 120 cable harness Figure B-3 shows an example of intermediate cabling suitable for use with the ELMo 120 Multip
B-6 Appendix B - ELMo 120 Multiplexer cabling specifications ELMo 120 Multiplexer power cable Figure B-4 shows the ELMo 120 Multiplexer cable harness. The ELMo 120 Multiplexer power cable assembly connects the -48 V dc power source to the ELMo 120 shelf. One ELMo 120 Multiplexer power cable harness contains connectors to support three ELMo 120 shelves.
Appendix B - ELMo 120 Multiplexer cabling specifications B-7 Category 5 Ethernet cabling specifications This section specifies the Elastic Networks Category 5 Ethernet cables recommended to connect the ELMo 120 shelf. Note: Non-Elastic Networks Category 5 Ethernet cables may be used, but they must conform to the Electronics Industry Association / Telecommunications Industry Association (EIA/TIA) 568-B Ethernet cabling standard.
B-8 Appendix B - ELMo 120 Multiplexer cabling specifications Revision 2.
I-1 Index I- A E Application data-only installing connections 2-14 voice-data installing connections 2-17 ELMo 120 cable harness ELMo 120 Multiplexer specifications B-2 ELMo 120 Multiplexer application data only installation 2-14 voice-data installation 2-17 cable specifications B-1 cabling installation accessories A-5 card descriptions 1-4 data network connection procedure 2-10 data-only application connection procedure 2-14 Filter shelf See Voiceband filter shelf installation tools and materials A-6
I-2 Index ELMo 120 Multiplexer (continued) testing procedure voice connectivity 2-27 voice facility, external connection procedure 2-22 Voiceband filter shelf connector description 1-6 connector illustration 1-6 description 1-5 illustration 1-5 installation procedure 2-2 voice-data application connection procedure 2-17 ELMo 120 multiplexer testing procedure data connectivity 2-28 ELMo Multiplexer testing procedure end-to-end EtherLoop test 2-29 ELMo120 Multiplexer Category 5 cable specifications B-7 data j
Index I-3 P V Power connection procedure 2-6 ELMo 120 Multiplexer cable specifications B-6 ELMo 120 shelf CBN grounding environment A-4 grounding environment A-3 IBN grounding environment A-4 specifications A-3 Power card description 1-4 Procedure testing data connectivity 2-28 EtherLoop end-to-end 2-29 voice connectivity 2-27 Voice ELMo 120 shelf testing connectivity to network 2-27 Voice facility, external installing connections 2-22 Voiceband filter shelf connector description 1-6 connector illustrat
I-4 Index Revision 2.
Elastic Networks ELMo 120 Multiplexer Installation and Maintenance Guide © 1999 Elastic Networks All rights reserved The information contained in this document is subject to change without notice. Elastic Networks reserves the right to make changes to equipment design or program components, as progress in engineering, manufacturing methods, or other circumstances may warrant. EtherLoop is a trademark of Elastic Networks. Publication Number: 08-01023-01 Revision: 2.
