Installing DC power Page 131 of 456

Figure 47

UEM to 8B/2R or 8B/4R master power cabinet connections

To Test Jack Frame (TJF)

Master Power Cabinet(s)

16 sq mm green/yellow

 

 

Positive Bus

Black wires

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Factory installed

Orange wire

 

(16 sq mm

 

green/yellow)

(10 sq mm)

 

 

 

 

 

 

Logic Return Equalizer,

 

 

 

 

 

 

LRE (functional earth)

 

Alarm terminal

 

 

 

 

 

 

 

 

 

 

 

(3 off)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-VE Distribution Rail

 

 

 

 

 

 

 

 

 

1

2

3

4

5

6

7

8

Each output is rated at 30 A maximum. Maximum total output is 150 A.

J4 in system monitor (XSM)

 

 

Red wires

Power alarm cable

 

 

 

 

(NT8D46AV)

 

 

 

 

 

 

 

 

 

 

TB1 in Power distribution unit

 

To CB4 (blower)

 

 

 

 

 

 

 

CB0 (module 0),

 

 

 

 

 

 

& CB1 (module 1)

 

To connections

 

 

 

To CB2 (module 2)

 

in pedestal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

& CB3 (module 3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- BAT

- BAT

0

1

- BAT

2

- BAT + RTN

3

0

+ RTN + RTN + RTN LRTN

1

2

3

Note: Optional four-feed wiring shown

553-AAA1513

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

Page 131
Image 131
Nortel Networks 1000M warranty UEM to 8B/2R or 8B/4R master power cabinet connections, Master Power Cabinets, Positive Bus