Comtest Networks 3432 POTS/ISDN Splitter Shelf User Manual

Model 3432 POTS/ISDN Splitter Shelf Installation Guide

Copyright © 2008,

Comtest Networks Inc.

This guide provides the basic information required to install the Comtest Model 3432 POTS/ISDN Splitter Shelf
in a Central Office location.

Installation

The 3432 requires 9U (15½ inches) of rack space. The
shelf is supplied with mounting brackets and hardware to
allow installation in a 19 inch or 23 inch rack. By
repositioning the mounting brackets, the shelf can be
installed with the connectors front or rear facing. With the
connectors facing the front, a depth of 10 inches would be
sufficient to mount the shelf with cables installed.

Grounding

To comply with the Network Equipment Building Systems
(NEBS) requirements, a suitable ground must be provided.
The 33432 is to be grounded to the rack, with the use of a
separate a ground wire, through the ground point at the
right side of the shelf.

Cabling Overview

The 3432 Splitter Shelf cabling configurations will vary depending on installation locations and the number of
lines supported by the DSLAM. However, the physical interface to the Front Panel connectors are standard 50­pin RJ-21 type receptacle connectors. Each Splitter card uses 24 pairs of the 25 pairs available on each 50-pin
connector.

DSL

LINE

PSTN

GROUND

Connector Pin Outs

As view from the front of the shelf:

• ADSL signals to and from the DSLAM enter the 3432 splitter shelf using the top most telephone

connectors, designated ‘DSL’ interface.

• Signals to and from the LINE (outside plant) enter the 3432 splitter shelf using the centre

telephone connectors, designated ‘LINE’ interface.

• Cables to and from the central office switch enter the 3432 splitter shelf via the lower most

telephone connectors, designated ‘PSTN’ interface.

Warranty

Filter ADSL Connector LINE Connector PSTN Connector

No. Tip Ring Tip Ring Tip Ring

1 26 1 26 1 26 1
2 27 2 27 2 27 2
3 28 3 28 3 28 3
4 29 4 29 4 29 4
5 30 5 30 5 30 5
6 31 6 31 6 31 6
7 32 7 32 7 32 7
8 33 8 33 8 33 8

9 34 9 34 9 34 9
10 35 10 35 10 35 10
11 36 11 36 11 36 11
12 37 12 37 12 37 12
13 38 13 38 13 38 13
14 39 14 39 14 39 14
15 40 15 40 15 40 15
16 41 16 41 16 41 16
17 42 17 42 17 42 17
18 43 18 43 18 43 18
19 44 19 44 19 44 19
20 45 20 45 20 45 20
21 46 21 46 21 46 21
22 47 22 47 22 47 22
23 48 23 48 23 48 23
24 49 24 49 24 49 24

Comtest warrants all equipment manufactured by it and bearing its nameplate to be free from defects in
workmanship and materials, during normal use and service, for a period of thre e (3) years from the date of
shipment. In the event that a defect in any such equipment arises within the warranty period it shall be the
responsibility of the customer to return the equipment by prepaid transportation to a Comtest service centre
prior to the expiration of the warranty period for the purpose of allowing Comtest to inspect and repair the
equipment. If inspection by Comtest discloses a defect in workmanship or material it shall, at its option, repair
or replace the equipment without cost to the customer, and thereafter return it to the customer by the least
expensive mode of transportation the cost of which shall be prepaid by Comtest. In no event shall this warranty
apply to equipment which has been modified without the written authorization of Comtest, or which has been
subject to abuse, neglect, accident or improper application. If inspection by Comtest discloses that the repairs
that must be made on the equipment are not covered by this warranty, the regular repair charges shall apply to
any repairs made to the equipment.

This warranty constitutes the only warranty applicable to the equipment sold by Comtest and no other warranty
or condition, statutory or otherwise, expressed or implied shall be imposed upon Comtest nor shall any
representation made by any person including a representation by a representative or agent of Comte st be
effective to extend the warranty coverage provided herein. In no event (including, but not limited to the
negligence of Comtest, its agents or employees) shall Comtest be liable for special or consequential damages
or damages arising from the loss of use of the equipment and on the expiration of the warranty period all liability
of Comtest whatsoever in connection with the equipment shall terminate.

Canada

171-E MacFarlane Road

Ottawa, Ontario

K2E 6V4, Canada

[e-mail]

1-877-369-5499 (Canada)

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