Line protection grounding, Line and telephone components, Telephones – Nortel Networks 1000 User Manual

Page 44

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44

Overview

Nortel has tested line protection devices from three manufacturers. See

Table 5 "Line protection device ordering information" (page 44)

. Each

manufacturer offers devices for protection of digital as well as analog
telephone lines.

Table 5
Line protection device ordering information

Device order code

Analog Line

Digital Line

Manufacturer

UP2S-235

UP2S-75

ITW Linx Communication
201 Scott Street
Elk Grove Village, IL 60007
(708) 952-8844 or (800) 336-5469

6AP

6DP

Oneac Corporation
27944 North Bradley Road
Libertyville, IL 60048-9700
(800) 553-7166 or (800) 327-8801 x555

ESP-200

ESP-050

EDCO Inc. of Florida
1805 N.E. 19th Avenue
P.O. Box 1778
Ocala, FL 34478
(904) 732-3029 or (800) 648-4076

These devices are compatible with 66 type M1-50 split blocks or
equivalent. Consult the device manufacturer if more specific compatibility
information is required.

Line protection grounding

In conjunction with line protectors, proper system (PBX) grounding
is essential to minimize equipment damage. Nortel recommends
following the grounding connection requirements as described in
Communication Server 1000M and Meridian 1 Large System Installation
and Commissioning
, . This requirement includes connecting the ground for
the protection devices to the approved building earth ground reference.
Any variances to these grounding requirements could limit the functionality
of the protection device.

Line and telephone components

Because testing of the line protectors was limited to the line cards and
telephones shown below, only these components should be used for
off-premise installations.

Telephones

Meridian Modular Telephones (digital)

Meridian Digital Telephones

Standard analog (500/2500-type) telephones

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008

Copyright © 2003-2008 Nortel Networks

.

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