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2-4 ELMo 120 Multiplexer installation and testing

Revision 2.01

ELMo 120 Multiplexer Installation and Maintenance Guide

08-01023-01

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

—continued—

ELMo 120
side flange

Shelf
mounting
screw (4)

Shelf
ground
stud

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Summary of Contents for ELMo 120

Page 1: ...08 01023 01 Elastic Networks ELMo 120 Multiplexer Installation and Maintenance Guide Revision 2 01 Publication Date November 1999 ...

Page 2: ......

Page 3: ...s 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 Publication Number 08 01023 01 Revision 2 01 Publication Date November 1999 ...

Page 4: ...ii Revision 2 01 ELMo 120 Multiplexer Installation and Maintenance Guide 08 01023 01 ...

Page 5: ...iii Revision 2 01 ELMo 120 Multiplexer Installation and Maintenance Guide 08 01023 01 Publication history November 1999 Document release for general publication ...

Page 6: ...Revision 2 01 ELMo 120 Multiplexer Installation and Maintenance Guide 08 01023 01 iv ...

Page 7: ...stallation and testing 2 1 Chapter task list 2 1 Task Installing the ELMo 120 Multiplexer modem and voiceband filter shelves 2 2 Task Connecting power to the ELMo 120 Multiplexer modem shelf 2 6 Task Installing the data network connection 2 10 Task Installing ELMo 120 Multiplexer connections for data only service 2 14 Task Installing ELMo 120 Multiplexer connections for voice data service 2 17 Tas...

Page 8: ...ecifications A 2 Power specifications A 3 Grounding environment specifications A 3 Network support equipment A 4 ELMo 120 Multiplexer installation cabling requirements A 5 ELMo 120 Multiplexer installation tools and materials A 6 ELMo 120 Multiplexer shelf physical characteristics A 6 ELMo 120 installation site requirements A 7 Appendix B ELMo 120 Multiplexer cabling specifications B 1 Chapter Con...

Page 9: ...23 01 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 ...

Page 10: ...viii About this document Revision 2 01 ELMo 120 Multiplexer Installation and Maintenance Guide 08 01023 01 ...

Page 11: ...t to connect to the Elite modems installed in an existing customer premise equipment CPE network Installing the ELMo 120 Multiplexer consists of two main tasks installing the ELMo 120 Multiplexer shelf into an equipment bay Note In voice data applications the shelf installation includes installing the auxiliary voiceband filter shelf connecting the ELMo 120 Multiplexer to the Elite CPE network the...

Page 12: ... 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 The following sections briefly describe the ELMo 120 Multiplexer shelf components Figure 1 1 ELMo 120 Multiplexer shelf and cards Power Card Swi...

Page 13: ...xer 1 3 Revision 2 01 ELMo 120 Multiplexer Installation and Maintenance Guide 08 01023 01 Figure 1 2 ELMo 120 Multiplexer backplane connections Not Used 1 2 3 4 5 6 7 8 9 10 ELMo 120 Modem Connectors J1 J2 J1 J2 J1 J2 J1 J2 J1 J2 Power ...

Page 14: ...t 10 100Base T ports uncrossed that can be used to connect the ELMo 120 Multiplexer shelf to the data network The bottom Ethernet 10Base T port is a crossed port that can be used to interconnect or stack connections between ELMo shelves in a multi shelf bay Modem cards One ELMo 120 Multiplexer shelf can support up to 10 Modem cards Each ELMo 120 Multiplexer modem card controls 12 Elite modems dire...

Page 15: ... 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 The filter shelf installs in the bay directly above the ELMo 120 Multiplexer ...

Page 16: ...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 Figure 1 4 Voiceband filter shelf connectors Filter Shelf Back plane Voice Net Line CP...

Page 17: ...s Task See Installing the ELMo 120 Multiplexer modem and voiceband filter shelves page 2 2 Connecting power to the ELMo 120 Multiplexer modem shelf page 2 6 Installing the data network connection page 2 10 Installing ELMo 120 Multiplexer connections for data only service page 2 14 Installing ELMo 120 Multiplexer connections for voice data service page 2 17 Installing the connections to the externa...

Page 18: ... procedure requires the following equipment bay with enough space available installed secured and electrically grounded according to standard industry practice specifications for a suitable bay are described in Appendix A installation hardware kit supplied with shelf phillips head screwdriver 1 or 2 continued CAUTION Potential damage to ELMo 120 Multiplexer Do NOT rest objects such as tools or any...

Page 19: ...re the top holes of the shelf mounting flanges will be attached 3 Align the holes of the shelf mounting flanges with the mounting holes in the bay as shown in Figure 2 1 Figure 2 1 Aligning ELMo 120 Multiplexer shelf continued 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...

Page 20: ...e 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 continued ELMo 120 side flange Shelf mounting screw 4 Shelf ground stud ...

Page 21: ...er shelves continued Step Action 5 Proceed acording to the following table Figure 2 3 Voiceband filter shelf mounting in bay STOP You have completed this task 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 Filter shelf side flange ...

Page 22: ...ectifier Power supply and wiring specifications are described in Appendix A Action Step Action 1 Eject all cards Power Switch and Modems from the backplane of the shelf Ensure that the cards completely dislodge from their backplane connectors 2 Route and connect a ground wire from the building s grounding facility to the ground stud on the shelf side flange See Appendix A Grounding environment spe...

Page 23: ...lexer 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 Multiplexer shelf components Be certain power feeds are connected properly to the power source with the red lead connected to the 48 V dc supply negative terminal as shown in the table...

Page 24: ...ion 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 Figure 2 5 ELMo 120 Multiplexer power harness connected to shelf continued Mate N Lok power ...

Page 25: ...sing 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 9 Re seat the cards into their shelf backplane connectors 10 Secure the power harness cable in accordance with local ...

Page 26: ...ction Switch Card Connection Port Application Cable Requirements ELMo 120 Switch card 10 100Base T uplink s Not crossed To a crossed port such as an intermediate switch or hub port non uplink Category 5 straight cable ELMo 120 Switch card 10 100Base T uplink s Not crossed To another uncrossed connection such as an uplink port or PC Category 5 cross over cable ELMo 120 Switch card 10Base T port Cro...

Page 27: ... 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 Figure 2 6 Typical ELMo 120 data network connection requirements continued Wide Area Network LAN WAN Termination LAN Router LAN Hub EtherLoop Hub YWS Eth1 10Base T...

Page 28: ... 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 4 Secure the cable in accordance with local office procedures continued 10 100 Base T Uplink 10 Base T port ...

Page 29: ...0 100Base T port on the ELMo 120 Switch card is connected to a 10Base T network that port LED should illuminate yellow orange If a 10 100Base T port on the ELMo 120 Switch card is connected to a 100Base T network that port LED should illuminate green 7 Proceed according to the following table STOP You have completed this task CAUTION Potential service loss Do not connect the second or third port o...

Page 30: ...Mo 120 Multiplexer cable harnesses 5 intermediate cables cross connect block s of the same type used in the existing main distribution frame MDF cross connect punch down tool Appendix B contains the specifications for the cables and wiring required in this procedure Action Step Action 1 Place and secure the dedicated EtherLoop cross connect blocks on the facility main distribution frame 2 Connect ...

Page 31: ...r 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 continued Not Used ELMo 120 Modem Connectors 7 10 not shown J1 J2 Not Used Modem 1 Modem 2 ...

Page 32: ...e Tip Ring pairs originating from the Elite CPE lines to the EtherLoop cross connect 6 Terminate the Elite CPE Tip Ring connections to the EtherLoop cross connect block 7 Record the Elite CPE Tip Ring assignments of the EtherLoop cross connect according to local office procedures 8 Secure all cables in accordance with local office procedures 9 Record the EtherLoop connection assignments This concl...

Page 33: ...ns the specifications for the cables and wiring required in this procedure Action Step Action 1 Place and secure the dedicated EtherLoop cross connect blocks on the facility main distribution frame 2 Designate and label one side of each block as Line CPE and the other side as Voice 3 Connect one Amp Champ connector of an intermediate cable to the to the Line CPE side of the EtherLoop cross connect...

Page 34: ...lter shelf See Figure 2 10 Figure 2 10 Voice network connections on the filter shelf 6 Connect the Amp Champ connector of the Voice Network cable harness to the Amp Champ connector originating from the Voice connection on the EtherLoop cross connect Figure 2 11 ELMo 120 Multiplexer intermediate voice connection continued J1 J2 Voice Network Connectors Line CPE Data Modem 1 Filter shelf connectors ...

Page 35: ...connected in step 5 See Figure 2 12 Figure 2 12 Line CPE connections on the filter shelf 8 Connect the Amp Champ connector of the Line CPE cable harness to the Amp Champ connector originating from the Line CPE connection on the EtherLoop cross connect Figure 2 13 ELMo 120 Multiplexer intermediate Voice Networkconnection continued J1 J2 1 Filter shelf connectors 6 10 not shown 2 3 4 5 Line CPE Conn...

Page 36: ... 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 continued J1 J2 Data Modem Connectors 1 Filter shelf connectors 6 10 not shown 2 3 4 5 ...

Page 37: ...h 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 11 Secure the cables in accordance with local office procedures 12 Go to Installing the connections to the external voice facility on page 2 22 STOP You have completed this task ELMo 120 Modem Connectors J1 J2 Filter Shelf M...

Page 38: ...s 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 Action Step Action 1 Identify the existing Tip and Ring jumper connections from the external voice facility cross connect block to the customer premise equipment...

Page 39: ...s connect 5 Terminate the jumper wires from the CPE Tip Ring connections to the EtherLoop side of the cross connect block 6 Verify the new connection by testing dial tone again at the CPE cross connect block Modem traffic noise should be heard at this point 7 Secure all cabling in accordance with local office procedures 8 Record the EtherLoop cross connect Tip Ring assignments for the voice facili...

Page 40: ...20 Multiplexer testing tasks Testing tasks for network support equipment such as LAN WAN routers are not included in this document ELMo 120 testing locations Primary test points for an EtherLoop installation include the following customer premise cross connect containing the connections for the ELMo 120 Multiplexer and customer premise equipment Elite modem user rooms If the system is having troub...

Page 41: ...ion Frame Elite Modem Interconnect Line Interconnect Voice Unshielded 25 pair AMP Champ type Tip Ring Jumper Pairs RJ 11 Wall Jack Male Female Female Male Intermediate cable Intermediate cable RJ 45 RJ 11 Unshielded 25 pair AMP Champ type Test Point 1 Test Point 2 Circuit Path IN Circuit Path OUT Wide Area Network LAN WAN Term LAN Router LAN Hub EtherLoop Hub YWS Eth1 10Base T Switch Card 10 100Ba...

Page 42: ...nnect EtherLoop cross connect Main Distribution Frame Elite Modem Interconnect Line Tip Ring Jumper Pairs RJ 11 Wall Jack Female Male Intermediat e cable RJ 45 RJ 11 Unshielded 25 pair AMP Champ type Test Point 1 Test Point 2 Circuit Path OUT Wide Area Network LAN WAN Term LAN Router LAN Hub EtherLoop Hub YWS Eth1 10Base T Switch Card 10 100Base T RJ 45 RJ 45 YesWare Server RJ 45 ELMo 120 YWS Eth0...

Page 43: ... Tip Ring assignments standard telecommunications hand test telephone set Action Step Action 1 Identify the voice line being tested 2 Switch the power switch on the ELMo 120 Multiplexer Power card to the ON position 3 Connect the hand test set Tip and Ring to the Tip Ring pair at the customer premise cross connect Test Point 1 in Figure 2 17 on page 2 26 4 Test for dial tone A successful test indi...

Page 44: ...e EtherLoop cross connect block and the Modem card on the ELMo 120 Multiplexer shelf 2 Install and connect the Elite modems on the corresponding lines at the customer premise locations as described in the Elite Modem Installation Guide 3 Connect power to the Elite modem 4 Switch the power switch on the ELMo 120 Multiplexer Power card to the ON position 5 Observe the Elite modem and ELMo 120 Modem ...

Page 45: ...quirements include the following Elite modem installed and powered as described in the Elite Modem Installation Guide data network equipment installed and configured including connection from EtherLoop to Internet intranet or LAN user room telephone or telephone test set with RJ 11 connection to the Elite modem Ethernet 10Base T cable with RJ 45 terminations laptop personal computer equipped with ...

Page 46: ...net PC card RJ 45 adapter cable to the Ethernet PC card 6 Connect one RJ 45 plug of the Ethernet cable to the PC card RJ 45 adapter and the other end to the To PC RJ 45 port on the Elite modem 7 Start the laptop and launch the browser application 8 In the browser application enter the IP address of a known working site on your network or on the Internet Repeat this step for several sites 9 Once da...

Page 47: ...ltiplexer Installation and Maintenance Guide 08 01023 01 ELMo 120 Multiplexer maintenance 3 Chapter contents This chapter contains the following information Topic See Maintenance guidelines page 3 2 Maintenance checklists page 3 3 ...

Page 48: ...r than generating some static on the line but can interfere with EtherLoop data service Cable connections Figure 2 17 on page 2 26 shows every connection point in an EtherLoop system An incomplete connection at any one of these points could cause the EtherLoop system to malfunction Ensure that all connections to the EtherLoop system are firmly seated and secured ELMo 120 Multiplexer equipment inst...

Page 49: ...oice and data Check jumper connections Check LEDs at intermediate hub or YesWare Server router connections Check for 10Base T cable damage Verify that Modem card is present in correct slot and fully seated in ELMo 120 backplane connection Replace Modem card to check for bad card Verify that Ethernet Switch card is present in correct slot and fully seated in ELMo 120 backplane connection Replace Sw...

Page 50: ... modem has been configured Verify that the correct type of Ethernet cable straight or crossover is being used for the application Verify that all LEDs on Elite modems are green Verify that the green LEDs at the various Ethernet connection points are lit Check for 10Base T cable damage Verify router configuration and installation See Voice and data connectivity maintenance in facility room checklis...

Page 51: ...for the ELMo 120 Multiplexer shelf and voiceband filter shelf Chapter Contents This chapter contains the following information Topic See ELMo 120 Multiplexer support equipment A 2 ELMo 120 Multiplexer installation accessory requirements A 5 ELMo 120 Multiplexer installation tools and materials A 6 ELMo 120 Multiplexer shelf physical characteristics A 6 ELMo 120 installation site requirements A 7 ...

Page 52: ...mponents Bay requirements and specifications The bay containing the ELMo 120 Multiplexer shelf must meet the following requirements The equipment bay must be capable of supporting the ELMo 120 Multiplexer weight and dimensions Elastic Networks recommends a standard 19 inch wide x 7 foot tall bay intended for use with data or telecommunications equipment A 23 inch wide telecommunications bay can be...

Page 53: ...DN standards The grounding environment for the ELMo 120 Multiplexer shelf and its supporting bay can be either a Common Bonding Network CBN or an Isolated Bonding Network IBN environment Either of these environments may use a 1 0 AWG ground collector The following sections offer guidelines for each of these environments with and without ground collectors See local electrical codes or the appropria...

Page 54: ...nment the bay containing the ELMo 120 shelf should be grounded using a 6 AWG stranded ground conductor to the building single point ground SPG as the common ground point In smaller facilities where no SPG exists the building principal ground BPG must be used If the facility has a ground collector the bay must be grounded to the connector using a 6 AWG stranded ground conductor to the collector The...

Page 55: ...e for every ELMo 120 Multiplexer cable harness Data Jumper Cable 04 00008 18 Connects filter shelf to ELMo 120 Multiplexer One cable for each filter modem card pair ELMo 120 Multiplexer Power Harness 04 00012 18 Connects ELMo 120 Multiplexer to 48 V dc power source One harness for every ELMo 120 Multiplexer shelf Category 5 RJ 45 Cable Cross over 4 6 8 ft 04 00001 4 6 8 See Table 2 1 Data cable se...

Page 56: ...cross connect blocks 1 wiring punch down tool intended for use with the cross connect block cross connect jumper wires 24 AWG quantity varies for tip ring connections ELMo 120 Multiplexer shelf physical characteristics This section specifies the physical dimensions and weight of the ELMo 120 modem and voiceband filter shelves Table A 3 ELMo 120 shelf weight and dimensions Specification Value metri...

Page 57: ...helf Table A 5 ELMo 120 operational requirements Specification Requirement Local area network environment TCP IP over Ethernet Power supply 48 V dc nominal 46 to 56 V dc acceptable range Environmental Operating temperature 5o C 41o F to 40o C 104o F Relative Humidity 1 to 90 Electromagnetic emissions Per FCC Part 15 Class A Outside plant voltage limiting protection 3 mil carbon block or equivalent...

Page 58: ...A 8 Appendix A ELMo 120 Multiplexer installation requirements Revision 2 01 ELMo 120 Multiplexer Installation and Maintenance Guide 08 01023 01 ...

Page 59: ...01 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 Topic See ELMo 120 Multiplexer cable specifications page B 2 ...

Page 60: ...the cables used in the ELMo 120 Multiplexer installation ELMo 120 Multiplexer cable harness Figure B 1 shows the ELMo 120 Multiplexer cable harness Figure B 1 ELMo 120 Multiplexer cable harness ELMo 120 Multiplexer cable harness pin and pair assignments Table B 1 on page B 3 presents the pair and pin assignments for the ELMo 120 Multiplexer cable harness Amp Champ 25 pair male connector unshielded...

Page 61: ... 15 BK S J2 Tip 28 G W J1 Ring 40 S BK J2 Ring 4 4 W BR J1 Tip 16 16 Y BL J2 Tip 29 BR W J1 Ring 41 BL Y J2 Ring 5 5 W S J1 Tip 17 17 Y O J2 Tip 30 S W J1 Ring 42 O Y J2 Ring 6 6 R BL J1 Tip 18 18 Y G J2 Tip 31 BL R J1 Ring 43 G Y J2 Ring 7 7 R O J1 Tip 19 19 Y BR J2 Tip 32 O R J1 Ring 44 BR Y J2 Ring 8 8 R G J1 Tip 20 20 Y S J2 Tip 33 G R J1 Ring 45 S Y J2 Ring 9 9 R BR J1 Tip 21 21 V BL J2 Tip 3...

Page 62: ... 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 You must not connect Filter connector to the ELMo 120 Multiplexer shelf or connect the Modem connector to the voiceband ...

Page 63: ...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 Multiplexer Figure B 3 Intermediate cable ELMo 120 Multiplexer end Amp Champ 25 pair female conn...

Page 64: ... source has two red and two black leads Each lead is terminated with 24 4 ring clips The ELMo 120 power cable assembly must terminate at the 48 V dc power source as shown in the following table ELMo 120 power cable connector Power source Terminal connection Red 2 48 V dc supply Negative Black 2 48 V dc return Positive CAUTION Serious equipment damage Reversed polarities on the power feed can irrep...

Page 65: ...bling standard Ethernet crossover cable requirements The Elastic ELMo 120 Ethernet crossover cables are color coded solid orange Table B 2 lists the ELMo 120 Ethernet crossover cable lengths offered by Elastic Networks Ethernet straight cable requirements The Elastic ELMo 120 Ethernet straight cables are color coded solid yellow Table B 3 lists the ELMo 120 Ethernet straight cable lengths offered ...

Page 66: ...B 8 Appendix B ELMo 120 Multiplexer cabling specifications Revision 2 01 ELMo 120 Multiplexer Installation and Maintenance Guide 08 01023 01 ...

Page 67: ...dure 2 10 Data only application installing connections 2 14 E 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 S...

Page 68: ...ta connectivity 2 28 voice connectivity 2 27 testing procedure end to end 2 29 EtherLoop system testing connectivity external network 2 29 F Filter shelf See Voiceband filter shelf G Grounding ELMo 120 shelf bay grounding guidelines A 4 I Installation cabling ELMo 120 shelf requirements A 5 network equipment ELMo 120 shelf requirements A 4 tools and materials ELMo 120 shelf requirements A 6 Instal...

Page 69: ...ation procedure ELMo 120 Multiplexer 2 2 Voiceband filter shelf 2 2 Power connection procedure 2 6 Switch card connection procedure 2 10 description 1 4 port description 1 4 T Testing ELMo 120 shelf data connectivity 2 28 voice connectivity 2 27 EtherLoop system testing locations 2 24 procedure end to end EtherLoop test 2 29 V Voice ELMo 120 shelf testing connectivity to network 2 27 Voice facilit...

Page 70: ...I 4 Index Revision 2 01 ELMo 120 Multiplexer Installation and Maintenance Guide 08 01023 01 ...

Page 71: ......

Page 72: ...ect 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 01 Publication Date November 1999 Printed in the United States of America ...

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