Elastic Networks ELMo 120 Installation And Maintenance Manual

08-01023-01

Elastic Networks

ELMo 120 Multiplexer

Installation and Maintenance Guide

Revision: 2.01
Publication Date: November 1999

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Elastic Networks

ELMo 120 Multiplexer

Installation and Maintenance Guide



1999 Elastic Networks

All ri

g

hts reserved

All information contained in this document is subject to change without notice. Elastic Networks reserves the right to make cha nges
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: 2.0 1
Publication Date: November 1999

ii

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

iii

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Publication histor

y

November 1999

Document release for general publication.

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

iv

v

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Contents

About this document vii

Audience vii
Documentation references vii

Introducing the ELMo 120 Multiplexer 1-1

Chapter Contents 1-1
ELMo 120 Multiplexer installation overview 1-1
ELMo 120 Multiplexer shelf 1-2
ELMo 120 Multiplexer components 1-4

Power card 1-4
Ethernet 10/100Base-T Switch card 1-4
Modem cards 1-4

Voiceband filter shelf 1-5

Voiceband filtershelf connectors 1-6

ELMo 120 Multiplexer installation and testing 2-1

Chapter task list 2-1
Task: Installin

g

the ELMo 120 Multiplexer modem and

voiceband filter shelv es 2-2

Task: Connectin

g

power to the ELMo 120 Multiplexer modem shelf 2-6

Task: Installin

g

the data network connection 2-10

Task: Installin

g

ELMo 120 Multiplexer connections for

data-only service 2-14

Task: Installin

g

ELMo 120 Multiplexer connections for voice/data service 2-17

Task: Installin

g

the connections to the external voice facility 2-22

Testin

g

the ELMo 120 Multiplexer installation 2-24

ELMo 120 testin

g

locations 2-24

ELMo 120 test point dia

g

rams 2-24

Task: Testin

g

voice connectivity 2-27

Task: Testin

g

data connectivity 2-28

Task: EtherLoop end-to-end testin

g

2-29

vi

Contents

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

ELMo 120 Multiplexer maintenance 3-1

Maintenance guidelines 3-2

Wirin

g

conditions 3-2
Cable connections 3-2
ELMo 120 Multiplexer equipment ins tal la tio n 3-2
Data network equipment confi

g

uration 3-2

Equipment failure 3-2

Maintenance checklists 3-3

Appendix A - ELMo 120 Multiplexer installation requirements A-1

ELMo 120 Multiplexer support equipment A-2

Bay requirements and specifications A-2
Power specifications A-3
Groundin

g

environment specifications A-3

Network support equipment A-4

ELMo 120 Multiplexer instal la tio n cabl in

g

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 Contents B-1
ELMo 120 Multiplexer cable sp ec ifi ca tio ns B-2

ELMo 120 Multiplexer cable har ne ss B-2
ELMo 120 Multiplexer data jumper cab le B-4
Intermediate cable specifications B-5
ELMo 120 Multiplexer power cable B-6

Cate

g

ory 5 Ethernet cabling specifications B-7

Index I-1

vii

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

viii

About this document

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

1-1

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Introducing the ELMo 120 Multiplexer 1-

This 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.

ELMo 120 Multipl exer installation overview

The ELMo 120 Multiplexer uses a dedicated EtherLoop cross-connect 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

Ethernet data network, and the external voice network via the dedicated
EtherLoop cross-connect

Chapter 2 contains the installation procedures for the ELMo 120 Multiplexer.

Topic See

ELMo 120 Multiplexer installa tio n overv iew pa

g

e1-1

ELMo 120 Multiplexer shelf pa

g

e1-2
ELMo 120 Multiplexer components page1-4
Voiceband filter shelf l pa

g

e1-5

1-2

Introducin

g

the ELMo 120 Multiplexer

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

ELMo 120 Multipl exer 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. The following sections briefly describe the ELMo 120 Multiplexer
shelf components.

Figure 1-1
ELMo 120 Multiplexer shelf and cards

Power
Card

Switch
Card

ELMo 120 Modem Cards

10987654321

Introducing the ELMo 120 Multiplexer

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

12345678910

ELMo 120 Modem Connectors

J1

J2

J1

J2

J1

J2

J1

J2

J1

J2

Power

1-4

Introducin

g

the ELMo 120 Multiplexer

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

ELMo 120 Multiplex er 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.

Switch card ports

The Switch card has two "up-link" Ethernet ports and one "interconnect" port
on the front faceplate of the card. The top two up-link ports are autosensing
Ethernet 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, directing data
traffic flow between the Elite modems and the data network.

Modem card and port numbering

ELMo 120 Multiplexer Modem cards are numbered 1-10, from left to right
(when viewed from the front). The 12 logical ports on each modem card are
numbered 0-11. Each logical port on a Modem card corresponds to one Elite
modem/CPE phone line.

Note:

The ELMo 120 Modem card ports are provisioned using the

Port

Manager

application on the YesWare Server. For information on how to

provision ELMo120 Modem card ports, see the

YesWare Applications

User’s Guide

.

Introducing the ELMo 120 Multiplexer

1-5

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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

Figure 1-3
Voiceband filter shelf

1-6

Introducin

g

the ELMo 120 Multiplexer

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Figure 1-4
Voiceband filter shelf connectors

Filter
Shelf

Back-

plane

Voice
Net.

Line
CPE

Data
Modem

12

345

6789

10

2-1

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

ELMo 120 Multiplexer installation and
testin

g

2-

This chapter contains the procedures for installing and testing the ELMo 120
Multiplexer.

Chapter task list

This chapter includes the following tasks.

Task See

Installin

g

the ELMo 120 Multiplexer modem and

voiceband filter shelve s

page2-2

Connectin

g

power to the ELMo 120 Multiplexer

modem shelf

page2-6

Installin

g

the data network connection page2-10

Installing ELMo 120 Multiplexer connections for
data-only service

page2-14

Installin

g

ELMo 120 Multiplexer connections for

voice/data serv ic e

page2-17

Installin

g

the connections to the external voice

facility

page2-22

Testin

g

the ELMo 120 Multiplexer installation page2-24

2-2

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Requirements

This 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 anything else on
top of the ELMo 120 Multiplexer shelves. The mounting
fasteners can only support the weight of the shelf.
Additional wei

g

ht could cause the mounting to fail and

damage the shelf.

ELMo 120 Multiplexer installation and testing

2-3

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Installing the ELMo 120 Multiplexer modem and voiceband filter shelves
(continued)

Action

Step Action

1

Select and apply antistatic protection.

2

Select the mountin

g

point in the bay where the top holes of the shelf mounting

flan

g

es will be attached.

3

Ali

g

n the holes of the shelf mounting flanges with the mounting holes in the

bay as shown in Fi

g

ure 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 antistatic
protection. The dischar

g

e of static electricity can

damage the ELMo 120 circuit packs.

ELMo 120
side flange

2-4

ELMo 120 Multiplexer installation and testin

g

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

Usin

g

the shelf mounting screws prov ided in the shelf hardwar e kit, fas ten the

left and ri

g

ht 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

ELMo 120 Multiplexer installation and testing

2-5

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

5

Proceed acordin

g

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 Ali

g

n and mount a voiceband filter shelf directly
above the ELMo 120 modem shelf as shown in
Fi

g

ure 2-3.

data-only Do

not

install the voiceband filter shelf. End of

procedure.

Filter shelf
side flange

2-6

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Action

Step Action

1

Eject all cards (Power, Switch, and Modems) from the backplane of the shelf.
Ensure that the cards completely dislod

g

e from their backplane connectors.

2

Route and connect a

g

round wire from the building’s grounding facility to the

g

round stud on the shelf side-flange. See Appendix A, “Grounding

environment specifications” on pa

g

e A-3 for ELMo 120 Multiplexer grounding

requirements.

—continued—

!

CAUTION
Serious equipment damage

Never connect untested power to the ELMo 120 with any circuit
packs installed. If the power feed polarities happen to be
reversed, the ELMo 120 shelf and rectifier could be seriously
dama

g

ed.

ELMo 120 Multiplexer installation and testing

2-7

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 accordin

g

to the following table:

Figure 2-4
Typical ELMo 120 power harness connection to -48 V dc power source

—continued—

ELMo 120 Multiplexer
power leads

Power source Terminal

connection

Red -48 V dc supply Ne

g

ative (-)

Black -48 V dc return Positive (+)

!

CAUTION
Serious equipment damage

Reversed polarities on the power feed can irreparably
dama

g

e 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 above.
Note that this is the opposite of other (non­telecommunications) applications, in which the red lead
is usually connected to the positive (+) terminal.

Black lead

-

48 V dc return

Positive (+)

Terminal

Red lead

-48 V dc supply
Negative (-)
Terminal

2-8

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 matchin

g

connector
on the ELMo 120 Multiplexer backplane. The connector fits only one way (see
Fi

g

ure 2-5).

Figure 2-5
ELMo 120 Multiplexer power harness connected to shelf

—continued—

Mate-N-Lok

power

connector

ELMo 120 Multiplexer installation and testing

2-9

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Connecting power to the ELMo 120 Multiplexer modem shelf (continued)

Step Action

6

Turn ON the -48 V dc power supply.

7

Usin

g

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 to

gg

le 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 office procedures.

STOP

You have completed this task.

2-10

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Task:

Installing the data network connection

Use this procedure to connect the ELMo 120 Multiplexer to the Ethernet data
network.

Requirements

This procedure requires the following:

• Ethernet 10/100Base-T data network installed

• 2-Category 5 crossover or straight cables terminated with RJ-45
connectors according to Table 2-1

—continued—

Table 2-1
Data cable selection

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

(Crossed)

To a crossed

port on an

intermediate switch or hub

Note:

Switch/hub must contain
connection to EtherLoop network
router.

• Cate

g

ory 5 cross-over

cable

ELMo 120 Switch card
10Base-T port

(Crossed)

To an uncrossed

connection such
as an uplink port, network router or
PC

• Category 5 straight cable

ELMo 120 Multiplexer installation and testing

2-11

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Installing the data network connection (continued)

Action

Step Action

1

Connect one end of the Cate

g

ory 5 cable to the Ethernet 10/100Base-T data

network supportin

g

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

Switch Card

10/100Base-T

RJ-

45

RJ-

45

YesWare

Server

RJ-

45

ELMo

120

YWS Eth0

10Base-T

2-12

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Installing the data network connection (continued)

Step Action

3

Connect the RJ-45 plu

g

to one of the three RJ-45 receptacles on the front

faceplate of the Ethernet 10/100Base-T Switch card. See Fi

g

ure 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

ELMo 120 Multiplexer installation and testing

2-13

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 se

g

ments.

6

Verify that the LEDs illuminate on the ELMo 120 Switch card and at the
EtherLoop hub/router port, indicatin

g

connectivity is established from the

ELMo 120 shelf to the hub/router.

Note:

If a 10/100Base-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 accordin

g

to the following table:

STOP

You have completed this task.

!

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. This creates a logical loop which will cause the
ELMo 120 Multiplexer system to lock up.

If the application is Then

Data-only

g

o to “Installing ELMo 120 Multiplexer

connections for data-only service” on pa

g

e

2-14

Voice/data

g

o to “Installing ELMo 120 Multiplexer

connections for voice/data service” on pa

g

e

2-17

2-14

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Requirements

This procedure requires the following tools and materials:

• 5-ELMo 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 one Amp-Champ connector of an intermediate cable to the matchin

g

connector on the dedicated EtherLoop cross-connect block, and route the
other connector to the equipment bay containin

g

the ELMo 120 Multiplexer.

—continued—

ELMo 120 Multiplexer installation and testing

2-15

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 matchin

g

J1/J2 modem connectors of two adjacent modem

cards in the ELMo 120 Multiplexer shelf. See Fi

g

ure 2-8.

Figure 2-8
ELMo 120 Multiplexer data-only connections

—continued—

Not Used

(ELMo 120 Modem Connectors 7-10 not shown)

J1J2

Not Used

Modem 1

Modem 2

2-16

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 matchin

g

Amp-Champ 25-pair connector on the

intermediate cable. See Fi

g

ure 2-9.

Figure 2-9
ELMo 120 Multiplexer intermediate data connection

5

Route the Tip/Rin

g

pairs originating from the Elite/CPE lines to the EtherLoop

cross-connect.

6

Ter min ate the El ite /CPE Tip/Rin

g

connections to the EtherLoop cross-

connect block.

7

Record the Elite/CPE Tip/Rin

g

assignments of the EtherLoop cross-connect

accordin

g

to local office procedures.

8

Secure all cables in accordance with local office procedures.

9

Record the EtherLoop connection assi

g

nments.

This concludes the ELMo 120 Multiplexer data-only installation.

10

Go to “Testin

g

the ELMo 120 Multiplexer installation” on page 2-24.

STOP

You have completed this task.

ELMo 120 cable harness
from J1/J2 connectors

Intermediate cable from EtherLoop
data cross-connect on the MDF

ELMo 120 Multiplexer installation and testing

2-17

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Requirements

This procedure requires the following tools and materials:

• 10-ELMo 120 Multiplexer cable harnesses

• 10-intermediate cables

• 10-ELMo 120 Multiplexer data jumper cables

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

Desi

g

nate 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 block, and route the other
connector to the equipment bay containin

g

the voiceband filter shelf.

4

Connect the Amp-Champ connector of a second intermediate cable to the
"Voice" side of the EtherLoop cross-connect block, and route the other
connector to the equipment bay containin

g

the voiceband filter shelf.

—continued—

2-18

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 Fi

g

ure 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 ori

g

inating 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 6-10 not shown)

2

3

4

5

ELMo 120 cable harness from J1/J2
"Voice Network" filter shelf
connectors

Intermediate cable from "Voice"
connection on the cross-connect

ELMo 120 Multiplexer installation and testing

2-19

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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
Fi

g

ure 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 ori

g

inating 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 conn ectors 6- 10 not shown)

2

3

4

5

Line CPE

Connectors

ELMo 120 cable harness from J1/J2
"Line CPE" filter shelf connectors

Intermediate cable from "Line CPE"
connection on the cross-connect

2-20

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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

—continued—

J1

J2

Data

Modem

Connectors

1

(Filter shelf connectors 6-10 not shown)

2

3

4

5

ELMo 120 Multiplexer installation and testing

2-21

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Fi

g

ure 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 “Installin

g

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

Modem Shelf

Voice

Net.

Line
CPE

Data

Modem

1

2

3

4

56

7

8

9

10

1

23

4

56

7

8

910

J1

J2

J1

J2

J2

J1

J1

J2

Not Used

Not Used

Jumper Cables

2-22

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Action

Step Action

1

Identify the existin

g

Tip and Ring jumper connections from the external voice
facility cross-connect block to the customer-premise equipment (CPE) cross­connect block.

2

Verify dial tone on the existin

g

voice facility at the CPE cross-connect block

for the line bein

g

rerouted.

—continued—

ELMo 120 Multiplexer installation and testing

2-23

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Installing the connections to the external voice facility (continued)

Step Action

3

Remove the Tip and Rin

g

jumper connections from the line.

4

Termin ate the Tip/Rin

g

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/Rin

g

connections to the

"EtherLoop" side of the cross-connect block.

6

Verify the new connection by testin

g

dial tone again at the CPE cross-connect

block. Modem traffic "noise" should be heard at this point.

7

Secure all cablin

g

in accordance with local office procedures.

8

Record the EtherLoop cross-connect Tip/Rin

g

assignments for the voice

facility ac cordin

g

to local office procedures.

This concludes the ELMo 120 Multiplexer voice/data installation.

9

Go to “Testin

g

the ELMo 120 Multiplexer installation” on page 2-24.

STOP

You have completed this task.

2-24

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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. 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 trouble, other test points may be required.

ELMo 120 test point diagrams

Figure 2-16 on page 2-25 shows the schematic layout and primary test points
of an ELMo 120 voice/data system. Figure 2-17 on page 2-26 shows the
schematic layout and primary test points of an ELMo 120 data-only system.

ELMo 120 Multiplexer installation and testing

2-25

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Figure 2-16
ELMo 120 voice/data system test points

PSTN/PBX

Customer Premise

cross-connect

PSTN or PBX

cross-connect

EtherLoop

cross-connect

Main Distribution 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

10/100Base-T

RJ-

45

RJ-

45

YesWare

Server

RJ-

45

ELMo

120

YWS Eth0
10Base-T

Filter

Data Jumper cable

2-26

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Figure 2-17
ELMo 120 data-only system test points

Customer Premise

cross-connect

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
10Base-T

ELMo 120 Multiplexer installation and testing

2-27

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 bein

g

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 Rin

g

to the Tip/Ring pair at the customer

premise cross-connect (Test Point #1 in Fi

g

ure 2-17 on page 2-26).

4

Test for dial tone. A successful test indicates that voice service is passin

g

throu

g

h the voiceband filter shelf.

5

If no dial t one is pres ent, see Chapter 3, “ELMo 120 Multiplexer
maintenance.”

STOP

You have completed this task.

2-28

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 bein

g

tested at the EtherLoop cross-connect

block and the Modem card on the ELMo 120 Multiplexer shelf.

2

Install and connect the Elite modems on the correspondin

g

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 card LEDs. After about 4-5
minutes, all LEDs at both the ELMo 120 Multiplexer and CPE locations
should be

g

reen, with the transfer LEDs flickering.

6

If the LEDs do not respond properly, see Chapter 3, “ELMo 120 Multiplexer
maintenance.”

STOP

You have completed this task.

ELMo 120 Multiplexer installation and testing

2-29

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Requirements

The EtherLoop end-to-end system testing requirements 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 the following:

— Ethernet PC card configured for TCP/IP
— Ethernet PC card RJ-45 adapter cable

— Internet browser application, either

Internet Explorer

4.0 or

Netscape

Navigator

3.0/4.0

—continued—

2-30

ELMo 120 Multiplexer installation and testin

g

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

EtherLoop end-to-end testing (continued)

Action

Step Action

1

Identify the modem pair bein

g

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 runnin

g

, shut it down.

5

Connect the Ethernet PC card RJ-45 adapter cable to the Ethernet PC card.

6

Connect one RJ-45 plu

g

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, workin

g

site on

your network or on the Internet. Repeat this step for several sites.

9

Once data connectivity has been established in step 8, verify dial tone a

g

ain

on the room phone.

10

If the voice or data connectivity fails, see Chapter 3, “ELMo 120 Multiplexer
maintenance.”

STOP

You have completed this task.

3-1

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

ELMo 120 Multiplexer maintenance 3-

Chapter contents

This chapter contains the following information.

Topic See

Maintenance gu idelines page 3- 2
Maintenance checklists page 3-3

3-2

ELMo 120 Multiplexer maintenance

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Wiring conditions

In general, EtherLoop systems can function well on standard, twisted
pair phone lines (Category 3 or better). However, in older facilities,
extremely poor wiring conditions may exist that can adversely impact
EtherLoop performance, Also, RJ-11 wall jack connectors can become
corroded, which may not impact voice service other 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 installation

ELMo 120 Multiplexer equipment is relatively simple to install.
However, if an equipment card is installed in the wrong slot, or if the
cards are not firmly seated in their backplane connectors, the EtherLoop
system will not function.

Data network equipment configuration

For an EtherLoop system to function, the data network supporting the
system must be properly configured. For example, IP addresses must be
correct, and the network router must be configured properly.

Equipment failure

The LEDs on the ELMo 120 Multiplexer shelf and on the Elite modem
indicate any equipment failures in the EtherLoop system.

ELMo 120 Multiplexer maintenance

3-3

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Maintenance checklists

This section contains the maintenance checklists for resolving EtherLoop
service problems.

Voice and data connectivity maintenance in facility room

Problem Maintenance Check

No voice or data service

• Verify that the correct Tip/Ring pairs are
being tested for both voice and data

• Verify power at all points in the system

• Check jumper connections at all cross­connects

• Verify connections and wiring conditions at
all points

Voice but no data service

• Verify that the correct Tip/Ring pairs are
being tested for both voice and data

• Check jumper connections

• Check LEDs at intermediate hub or YesW are
Server/router connections

• Check for 10Base-T cable damage

• Verify that Modem card is present in correct
slot and fully seated in ELMo 120 b ackpl ane
connection

• Replace Modem card to check for bad card

• V erify that Etherne t Switch ca rd is pr esent i n
correct slot and fully seated in ELMo 120
backplane connection

• Replace Switch card to check for bad card

Data but no voice service

• Verify that the correct Tip/Ring pairs are
being tested for both voice and data

• Check jumper connections at PSTN/PBX
cross-connect

• Check dialtone at the PSTN/PBX cross­connect to verify that ther e is not an ex ternal
voice network problem

• V erify that Filter card is present in correct slot
and fully seated in ELMo 120 backplane
connection

• Replace Filter card in ELMo 120 shelf to
check for bad card

3-4

ELMo 120 Multiplexer maintenance

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

End-to-end maintenance checklist

Problem Check

No voice or data service

• Verify power at all points in the system

• Verify connections and wiring conditions at
all points

Voice but no data service

• Verify that there is not an external network
problem such as a server being down

• Verify that the Ethernet card on the PC
connected to the Elite modem has been
configured

• V er ify that the correct type of Eth er ne t ca ble
(“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” checklist

Data but no voice service

• Check dialtone at the PSTN/PBX cross­connect to verify that ther e is not an ex ternal
voice network problem

• Check/replace Filter card in voiceband filter
shelf

• See “Voice and data connectivity
maintenance in facility room” checklist

A-1

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Topic See

ELMo 120 Multiplexer support equi pme nt 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 sit e requ irem ents A-7

A-2

Appendix A - ELMo 120 Multiplexer installation requirements

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

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 used with the appropriate 19-inch flange adapters.

• The bay must be installed and secured in accordance with standard data
and telecommunications industry practices.

• The bay must be electrically grounded according to standard
telecommunications industry practices. See “Grounding environment
specifications” on page A-3 for the recommended bay grounding
environment.

Appendix A - ELMo 120 Multiplexer installation requirements

A-3

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Power specifications

T able A-1 shows the power specifications for the ELMo 120 Multiplexer shelf.

Grounding environment specifications

The grounding environnment for the bay containing the ELMo 120
Multiplexer shelf must meet local electrical codes and Integrated Building
Distribution Network (IBDN) 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 appropriate
IBDN standards for more information.

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

2.5V dc

-5 V dc

A-4

Appendix A - ELMo 120 Multiplexer installation requirements

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 A WG, stranded, ground conductor . In smaller facilities
where no FGB 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 collector
must then be grounded to the common ground point (FGB or BPG) using a 2
AWG (stranded) ground conductor.

If the distance from the FGB, BPG or ground collector is greater than
53 ft (16 m), a 2 A WG (stranded) ground conductor must be used to ground the
bay .

IBN grounding environment

In most facilities using the IBN environment, 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 collector
must then be grounded to the common ground point (SPG or BPG) using a 2
AWG (stranded) ground conductor.

If the distance from the SPG, BPG or ground collector is greater than
53 ft (16 m), a 2 A WG (stranded) ground conductor must be used to ground the
bay .

Network support equipment

The network support equipment that may need to be installed includes the
following:

• Ethernet 10Base-T hub port for ELMo 120 Hub card connection (one per
ELMo 120 shelf)

• Ethernet 10Base-T hub ports for NSS/InterProxy (two per NSS)

• LAN router connections

• WAN gateway connection

Network support requirements will vary according to the existing facility
resources. See the completed Elastic Networks

Site Survey Questionnaire

for

more information.

Appendix A - ELMo 120 Multiplexer installation requirements

A-5

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Table A-2
ELMo 120 cabling

Part description Elastic Networks

Part Number

Function Quantity required

ELMo 120 Multiplexer
cable harness

04-00007-10 Connects ELMo 120

Multiplexer or filter shelf to
intermediate cable

One harness for every two
ELMo 120 modems or
voiceband filter cards

Intermediate Cable
(50 ft.)

04-00009

/10/11-50 Connects cable harness to

EtherLoop cross-con nec t

One cable 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

Cate

g

ory 5/RJ-45

Cable/Cross-over
(4/6/8 ft.)

04-00001-4/6/8 See Table 2-1, “Data cable

selection” on pa

g

e 2-10

One cable for each
connection from the ELMo
120 Multiplexer to the data
network

Cate

g

ory 5/RJ-45

Cable/Strai

g

ht

(4/6/8 ft.)

04-00002-4

/6/8 See Table 2-1, “Data cable

selection” on pa

g

e 2-10

One cable for each
connection from the ELMo
120 Multiplexer to the data
network

Air Baffle Assembly 03-00003-01 Assists with shelf heat

dissipation/coolin

g

One for each ELMo 120
Multiplexer shelf or ELMo
120 Multiplexer/filter shelf
pair

Kick Bar 03-00002-01 Protects shelf from

physical dama

g

e

One for each bay, installs
at bottom of rack

A-6

Appendix A - ELMo 120 Multiplexer installation requirements

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

ELMo 120 Multipl exer 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, quantity varies) for tip/ring
connections

ELMo 120 Multipl exer 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 (metric)

Wei

g

ht (with cards) 45 lbs. (20 kg)
Height 12 in. (30.5 cm)
Width 19 in. (48.3 cm)
Depth 12 in. (30.5 cm)

Table A-4
Filter shelf weight and dimensions

Specification Value (metric)

Wei

g

ht (with cards) 15 lbs. (7 kg)
Height 7 in. (18 cm)
Width 19 in. (48.3 cm)
Depth 12 in. (30.5 cm)

Appendix A - ELMo 120 Multiplexer installation requirements

A-7

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

ELMo 120 instal lation site requirements

Table A-5 presents the installation site requirements for the ELMo 120 shelf.

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 ran

g

e

Environmental

Operating temperature:

5

o

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 for each
outside plant-exposed line, per Bellcore GR-

1089.

A-8

Appendix A - ELMo 120 Multiplexer installation requirements

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

B-1

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 sp ec ifi ca tio ns pa

g

e B-2

B-2

Appendix B - ELMo 120 Multiplexer cablin

g

specifications

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

ELMo 120 Multipl exer cable speci fications

This section presents the ca ble specificat ions for the cables us ed 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

T able B-1 on page B-3 presents the pair and pin assignm ents for the ELMo 120
Multiplexer cable harness.

Amp-Champ
25-pair male
connector
(unshielded)

Dual Omni-Grid
connectors
(J1 and J2)

Appendix B - ELMo 120 Multiplexer cabling specifications

B-3

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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

11W/BL

J1

/Tip 13 13 BK/G

J2

/Tip

26 BL/W J1/Rin

g

38 G/BK J2/Rin

g

2 2 W/O J1/Tip 14 14 BK/BR J2/Tip

27 O/W J1/Rin

g

39 BR/BK J2/Rin

g

3 3 W/G J1/Tip 15 15 BK/S J2/Tip

28 G/W J1/Rin

g

40 S/BK J2/Rin

g

4 4 W/BR J1/Tip 16 16 Y/BL J2/Tip

29 BR/W J1/Rin

g

41 BL/Y J2/Rin

g

5 5 W/S J1/Tip 17 17 Y/O

J2

/Tip

30 S/W J1/Rin

g

42 O/Y J2/Rin

g

6 6 R/BL J1/Tip 18 18 Y/G J2/Tip

31 BL/R J1/Rin

g

43 G/Y J2/Rin

g

7 7 R/O J1/Tip 19 19 Y/BR J2/Tip

32 O/R J1/Rin

g

44 BR/Y J2/Rin

g

8 8 R/G J1/Tip 20 20 Y/S J2/Tip

33 G/R J1/Rin

g

45 S/Y J2/Rin

g

99R/BRJ1

/

Tip 21 21 V/BL J2/Tip

34 BR/R J1/Rin

g

46 BL/V J2/Rin

g

10 10 R/S J1/Tip 22 22 V/O J2/Tip

35 S/R J1/Rin

g

47 O/V J2/Rin

g

11 11 BK/BL J1/Tip 23 23 V/G J2/Tip

36 BL/BK J1/Rin

g

48 G/V J2/Rin

g

12 12 BK/O J1/Tip 24 24 V/BR J2/Tip

37 O/BK J1/Rin

g

49 BR/V J2/Rin

g

25 -- V/S Not Assigned

-- S/V Not Assi

g

ned

B-4

Appendix B - ELMo 120 Multiplexer cablin

g

specifications

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 traf fic 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 filter
shelf.

Figure B-2
ELMo 120 Multiplexer cable harness

Filter and Modem
Omni-Grid connectors

Appendix B - ELMo 120 Multiplexer cabling specifications

B-5

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 Multiplexer.

Figure B-3
Intermediate cable

ELMo 120 Multiplexer end

Amp-Champ, 25-pair female
connector (unshielded)

Cross-connect block end

Varies by cross-connect type

B-6

Appendix B - ELMo 120 Multiplexer cablin

g

specifications

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Figure B-4
ELMo 120 Multiplexer power cable harness

Power connector terminations

The end of the ELMo 120 Multiplexer power cable assembly that connects to
the power 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 Ne

g

ative (-)

Black (2) -48 V dc return Positive (+)

!

CAUTION
Serious equipment damage

Reversed polar ities on the power feed ca n irreparably
damage the ELMo 120 shelf components. Be certain
power feeds are connected properly to the power
source, with the re d leads connected to the -48 V dc

supply

as shown in the table above. No te that this is
the opposite of other (non-telecommunications)
applications, in which red leads are usually
connected to the "+" terminal.

Mate-N-Lok
Connector (4-prong)

Red and black
ring clip leads (4)
(Two not shown)

Appendix B - ELMo 120 Multiplexer cabling specifications

B-7

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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.

Ethernet crossover cable requirements

The Elastic ELMo 120 Ethernet crossover cables are color-coded

solid

orange

. T able 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

.
T able B-3 lists the ELMo 120 Ethernet straight cable lengths offered by Elastic
Networks.

Table B-2
ELMo 120 Ethernet crossover cables

Cable PEC Code Length

04-00001-04 4 ft (1.2 m)
04-00001-06 6 ft (1.8 m)
04-00001-08 8 ft (2.4 m)

Table B-3
ELMo 120 Ethernet straight cables

Cable PEC Code Length

04-00002-04 4 ft (1.2 m)
04-00002-06 6 ft (1.8 m)
04-00002-08 8 ft (2.4 m)

B-8

Appendix B - ELMo 120 Multiplexer cablin

g

specifications

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

I-1

A

Application

data-only

installing connections 2-14

voice-data

installing connections 2-17

C

Cable

ELMo 120 Multiplexer

specifications B-1

ELMo 120 shelf

installation accessories A-5

ELMo120 Multiplexer

Category 5 cable specifications B-7
data jumper cable specifications B-4
ELMo 120 cable harness specifications

B-2
intermediate cable specifications B-5
power cable specifications B-6

Category 5 cable

ELMo 120 Multiplexe specifications B-7

Connectors

Voiceband filter shelf 1-6

D

Data

ELMo 120 shelf

testing connectivity to network 2-28

Data jumper cable

ELMo 120 Multiplexer

specifications B-4

Data network

connection procedure 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

See Voiceband filter shelf
installation

tools and materials A-6
installation procedure

data-only connections 2-14

external voice facility connections 2-22

power connection 2-6, 2-10

shelf 2-2

voice-data connections 2-17
Installation procedures 2-1
installation requirements A-1
maintenance 3-1
network support equipment

requirements A-4
power

CBN grounding environment A-4

connection procedure 2-6

grounding specifications A-3

IBN grounding environment A-4

specifications A-3
shelf installation procedure 2-2

Index I-

I-2

Index

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

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 jumper cable

specifications B-4

ELMo 120 cable harness

specifications B-2

intermediate cable

specifications B-5

power cable

specifications B-6

EtherLoop

maintenance checklist 3-3
maintenance guidelines 3-2
system testing locations 2-24
testing ELMo 120 shelf

data 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

Installation procedure

data network connection 2-10
data-only application 2-14
ELMo 120 Multiplexer

data-only connections 2-14

external voice facility connections 2-22

power connection 2-6, 2-10

voice-data connections 2-17
ELMo 120 Multiplexer shelf 2-2
power connection 2-6
Switch card

connecting 2-10
voice faciliity, external

connections 2-22
Voiceband filter shelf 2-2
voice-data application 2-17

Installation procedures

ELMo 120 Multiplexer 2-1

Intermediate cable

ELMo 120 Multiplexer

specifications B-5

M

Maintenance

ELMo 120 Multiplexer 3-1
EtherLoop system

guidelines 3-2

maintenance checklist 3-3

Modem card

card and port numbering 1-4
description 1-4

Index

I-3

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

P

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

S

Shelf

installation 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 facility, external

installing connections 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

installing connections 2-17

I-4

Index

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Elastic Networks

ELMo 120 Multiplexer

Installation and Maintenance Guide

© 1999 Elastic Networks
All rights reserved
The information contained in this document is subject to
chan

g

e without notice. Elastic Network s reserves the right
to make changes to equipment design or program
components, as pro

g

ress in engineering, manufacturin

g

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