Product manual

Installation instructions, Modular cabinet power cabling
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
116
Base station power supplied to a maximum of 3 CLUs/CLU-Ss/SLUs via the backplane and 5
CLUs/CLU-Ss/SLUs powered via a separate 48 V power supply
Figure 78 gives a schematic diagram of this configuration. Figure 79 gives the cable diagram of this
configuration.
Fig. 78 Schematic diagram of powering the modular cabinet and 3 CLUs/CLU-Ss/SLUs
by a battery power unit and 5 CLUs/CLU-Ss/SLUs by a 48 Vdc supply
1. Disconnect the power cable (TRENB 101 01) from the modular cabinet and connect the battery
power unit to the modular cabinet using power cable TRE 990 113/850 as shown in figure
79.
2. Connect power cable TRENB 101 01 to the PW-EXT connector on the MCCB. see figure 79 for
the polarity.
3. Connect the power supply at the other end of the cable.
Note:
There are two sets of PW1, PW2 and PW3 terminals; one for backplane powering and one for external
powering.
WARNING
When using the PBX power supply, make sure that the capacity of the
supply is sufficient to power both the PBX and the modular cabinet.
Backplane
Modular
cabinet
Internal
CLUs,
CLU-Ss
or SLUs
48 Vdc
Battery
power
unit
PW-
EXT
PW-
BP
5
3
MCCB
063