User's Manual

Repeater Design
The repeater is housed in a cast aluminium chassis that is waterproof,
class NEMA4/IP65, for outdoor use. The chassis has a design suited for
outdoor use as well as indoor use.
The chassis consists of a cabinet and a cover joined with hinges. The
cabinet contains the repeater circuitry.
The cover has two external LEDs for operation and alarm indication.
Both the uplink and downlink circuitry is built up on a single BSC board
inside the repeater. The various amplifiers and RF modules are
individually shielded by metal covers.
The BSC band selective compact repeater board
The band selective compact repeater board can handle one wide band
repeater channel, uplink and downlink. The band width is adjustable.
Other units
In addition to the BSC repeater board, the repeater contains:
• DPX Duplex filter, located on the upper part of the repeater.
• DCC Directional Coupler for Compact, located on the RCC unit in
repeaters with an RCC unit that works in the same cell system as the
repeater.
• RCC unit (optional), see Chapter 6, Optionals. This is located to the
right in the cabinet.
• PSM Power Supply Module, located to the left in the cabinet.
• The repeater is equipped with an R2R, Repeater to Repeater Link
feature that can be used to communicate with several repeaters.
ALLGON Systems AB ALR Compact Repeater Functional Description
VD203 67/EN - User’s Manual Rev. 1A 2000-07 5 - 2