User's Manual

Table Of Contents
Installation
77
Insert the following cards into each Modem Shelf: -
2 x PSUs Slots 1 and 2.
1 x Analogue Card (AU) Slot 16.
1 x Demand Assignment Tributary Card (DTU). Slot 5.
1 x Shelf Controller (SC) Slot 3.
Modem Cards Slots 10 to 15.
Fit RF Coupler for using a DACU
Fit RF Coupler for connection of systems to the DA Control Unit for commissioning.
A 30dB coupler should be fitted to the male N-Type connector at the top of the DIP/LNA1 and
the DIP/LNA2 (if fitted). Port J1 fits onto the DIP/LNA module and the antenna feed fits on to
port J2. The coupler should be orientated as shown in so that the SMA port faces to the right
side of the rack (when viewed from the front) to allow easy access for test leads. Note some
3.4-3.6GHz systems may not have couplers fitted.
Connect Antenna
If the Rack is fitted with couplers connect antenna at this stage. Do not connect antenna at
this stage on systems without couplers fitted.
Note: See Antenna and Feeder Installation and Commissioning Procedure, 605-0000-503 for
details of feeder grounding.