Product manual

Installation instructions, Modular cabinet connection board – REX-SPP0014 (ROANB 101 28)
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
97
Chapter 19 Modular cabinet connection board – REX-SPP0014
(ROANB 101 28)
19.1 Board description
The Modular Cabinet Connection Board (MCCB) REX-SPP0014 (ROANB 101 28) (see figure 63) is
factory fit on the bottom of modular cabinet type REX-BAS9007 (BDVNB 101 01/n), above the drawer.
The MCCB is used to make the following interconnections:
• Between the backplane power and a maximum of 3 CLUs/CLU-Ss for powering base stations
• Between the external power input and a maximum of 7 CLUs/CLU-Ss for powering base stations
• Between the PBX signalling ground and a maximum of 7 LTUs when earth signalling is used
(instead of timed break signalling)
• Between a maximum of 3 DTUs (6 digital trunks) and the PBX via coaxial pairs
• Between the CPU and a printer and a PC
• Between the general alarm output of the CPU and an alarm device
A maximum of 3 CLUs/CLU-Ss/SLUs can be provided with base station power via the backplane. In
that case the 48 V from the backplane is connected to the PW-BP input of the MCCB (see figure
60).
When more CLUs/CLU-Ss/SLU-Ss have to be powered, an external −48 V power supply can be
connected to the PW-EXT input of the MCCB. In this way a maximum of 7 CLUs/CLU-Ss/SLU-Ss can
be powered.