Nortel Networks 1000M User Manual

Page 154

154

Installing and connecting reserve power supplies for the Cabinet system

Note: The red positive (+) wire connects to the red (+) post of
battery 1. The black negative (-) wire connects to the black post
(-) of battery 4. Ensure all connections are secured.

ATTENTION

IMPORTANT!

If the wires you use are not the colors described here, make sure that you
connect the wires to ensure positive grounding for your system.

Set the breaker in the battery unit to ON to test for correct wiring.

The NTAK76 green LED (BATT) should switch on.

DC voltage can be measured between the test points whenever the
green BATT LED is lit on the NTAK76. The test points are protected
by high resistance: it is impossible to damage the battery unit by
short-circuiting the test points to each other or to the metal case.
For valid readings the test points must not be short-circuited. The
following different voltage readings can be made:

•

open circuit battery voltage when the NTAK0420 cable is
disconnected and the NTAK76 circuit breaker is closed

•

NTDK70 output when the NTAK0420 cable is connected and the
NTAK76 circuit breaker is open

•

NTDK70 float charge voltage when the NTAK0420 cable is
connected and the NTAK76 circuit breaker is closed

Set the breaker on the NTAK76 battery unit and the breaker on the
NTDK70 power supply to OFF.

Plug the NTAK0420 cable from the battery box into the power supply
in the cabinet. See

Figure 70 "Power cord routing" (page 155)

Secure the cable with the cable retainer inside the cabinet.

Set the breaker on the Small System power supply to ON.

The NTDK70 BATT LED should be off and the NTAK76 LED should
be on.

Set the breaker on the NTAK76 battery unit to ON.

The NTDK70 BATT LED should be lit and the NTAK76 LED should
be on.

Replace the cover on the system cabinet and secure the latch.

—End—

Nortel Communication Server 1000

Communication Server 1000M and Meridian 1 Small System Installation and Commissioning

NN43011-310

01.04

Standard

Release 5.0

13 May 2008