User's Manual

GSM/802.11b RadioFrame System Method of Procedure

System Description

RadioFrame Networks, Inc.

2.7 Physical Relationships

The RadioFrame System is laid out as follows:

• Main rack: Located in a Telco closet, the main rack typically houses the BCU and

one ACU.

• Remote ACUs: Up to seven additional ACUs can be connected to the BCU. The

remote ACUs are installed in closets or Telco rooms throughout the building to

support additional RFUs.

• RFUs: Up to 8 RFUs per ACU are installed on walls or on or above ceilings

throughout the building to provide coverage for the GSM/802.11b/g RFS; RFUs

house the GSM RadioBlades and iRAPs.

• LAN: Customer equipment located in a customer-defined area.

The two following illustrations show an example of a high-capacity and a low- capacity

configuration of the RadioFrame Networks GSM/802.11 system. Both examples show a

four story-building configuration depicting the difference in capacity provided by

sectorization and the corresponding hardware changes. To gain three times the capacity

(three times the number of BRs), no additional RadioBlades are required.

Remote ACUs are located on Floors 1, 2 and 3, with each ACU supporting up to eight

RFUs. The ACU located on Floor 1 also supports RFUs in the parking level.