User's Manual

AW100 Series System Installation Manual
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AirWalk Proprietary and Confidential Page 40 of 54
2) Any discrepancies or problems must be clarified and changes approved by the
designated RF Systems Engineer prior to powering up any base station.
3) Locate the GPS antenna cables and verify the cable is equipped with a TNC
connector for connection to the IP-RAN base station.
Base station operation is still possible without a GPS connection; however, it will not be possible
to implement soft handoff and related features. In cases where GPS is not provided, the base
station will obtain local time from the BSM time server to ensure mobile handset display is
correct.
7.1.7 Verify physical mounting racks are present and suitable
1) Rack mounted IP-RAN systems must be mounted in a suitable 19” EAI standard rack
system that can support the weight of the IP-RAN and also provide adequate rear
support for the power supply. Mounting height requirements are as follows:
a) Main Unit 1 RU (Rack Units) [1 RU = 1.75” (44mm)]
b) RU System 2 RU (Rack Units) [Omni RU System]
c) DC RPSU 1 RU [DC models only]
2) The normal unit stacking lineup is (from bottom to top): RPSU; RU; Main Unit. Do not
change this lineup since all the factory supplied cables are sized for this stack model.
3) It is MANDATORY that suitable rear support be provided at the bottom of the IP-RAN
stack.
a) In the case of 4 post racks, provide rear support using either a rear cross bar
support, a shelf, or mounting brackets for the rear of the chassis.
b) In the case of 2 post racks, provide a suitable heavy duty shelf capable of
holding at least 100 lbs (45 kg). Other options include using a centre
balanced shelf or installing a 4 post conversion kit with a support shelf.
4) Rack mounting screws are to be supplied by the installer as required.