Nortel DCT1900 Technical Product Manual page 259

Factory Fitted Power Cabling
The Modular Cabinet is delivered with the following powering cables fitted:
Cable TRENB 101 02 (190248) between the filter and the lower fuse holders (see Figure 19–
11).
Cable TRENB 101 04 (#190250) between the switch and the lower two fuse holders.
Cable between the switch and the upper fuse holders. The end of the cable with piggy-back
faston is connected to the switch.
Cable between the switch and connector PW–BP on the MCCB. Connects to piggy-back
faston on the switch.
Cable between the upper fuse holders and connector X112, X113 on the backplane (see
Figure 19–12).
Cable #190253 (red cable) in two locations: between terminal block A and filter and between
terminal block B and MCCB terminal PW-EXT (see Figure 19-10).
Cable #190254 (black cable) in two locations: between terminal block A and filter and
between terminal block B and MCCB terminal PW-BP (see Fig. 19-10).
All cables are connected with the red wires (+) connected at the left–hand side except for PW-EXT
connection. The red wire of cable is connected to connector X112(+).
In the following paragraphs it is assumed that the cables are fitted as described above. If you
altered the wiring, change it as described above.
PW-EXT
MCCB
Botton view
Fig. 19-10 Power Connection to the Modular Cabinet
Install-DCT1900/R8/mw
© 2000-2005
Red
A
Red
Black
| +
Technical Product Manual - DCT1900
Installation Instructions, Modular Cabinet – Power Cabling
Black
Torque the terminal screws
to 7 in./lb.
B
Black
Additional wires to
Red
external -48Vdc
_
-
+
+
-
_
-48V supply
+
+
Warning
Additional wires to external
-48V supply
19-9