User Manual

AS4000 Central Terminal
Installation and Commissioning
DLP 004
605-0000-452
Issue 1.3dr Date 7/02/00
Page 6 of 6
Connect the 2Mbit/s ports on the DDF to P7 connectors on shelf interface connections
located on the modem shelf interface panel. If using protected mode connect the other
2Mbit/s cables to P9 connectors on the same panel. See Figure 11
Ensure that the respective 2Mbit/s ports have been configured on the DDF/Backhaul
Tie in cables as necessary using suitable cable ties, trim, leaving no sharp edges.
4. Inter-rack connections
1. Remove the blank panel located immediately below the combiner shelf on the DA Rack
2. Run a Baseband ribbon cable from each modem shelf in the Expansion Rack to the
combiner shelf via the hole created by the removal of the breakout sections during the
rack installation.
3. Insert the connector into the Baseband socket on the Modem Interface shelf (see Figure
18) and into the appropriate socket on the Combiner Shelf backplane (the sockets are
located behind the switches).
Modem 1
Modem 4
Modem 3
Modem 2
Alarms
Figure 18. Combiner Shelf Ribbon Connections
4. Run the alarm bus ribbon from the Alarm and Breaker panel to the Alarm Bus socket in
the DA Rack wiring loom.