Modular Cabinet - Rex-Bas9021A/1B - Nortel DCT1900 Technical Product Manual

Technical Product Manual - DCT1900
Installation Instructions, Modular Cabinet – Power Cabling

19.4 Modular Cabinet - REX-BAS9021A/1B

Figure 19–9 shows the power distribution in a Modular Cabinet powered by external -48Vdc
supplies.
External -48Vdc
External 48 Vdc
Power Supplies
External -48Vdc
19-8
MODULAR
CABINET
Terminal
T B A
ERMINAL LOCK
Block A
Piggy-back
(S F . 19-10)
EE IG
(see Figure 16-2)
Faston
TRENB
101 05
Mains
filter
15 A
MCCB
Terminal
T B B
ERMINAL LOCK
Block B (see
(S F . 19-10)
EE IG
Figure 16-2)
PW-EXT
Fig. 19-9 Power Distribution Powered by External -48Vdc
BACKPLANE
X102 48 Vdc
X112, X113
3A
Piggy-back
FASTON
or
TRENB
101 03
PW-BP PW1
PW2
PW3
F1
PW1
PW2
15 A
PW7
F2
PW3
PW4
15 A
PW5
PW6
+ 5 V
To
+ 12 V
System
* 12 V Boards
TSRNB
101 33
To
CLUs
Install-DCT1900/R8/mw
© 2000-2005