User 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 can either be a thin
cover or a large cover. The latter consists of another cabinet which can
be used as an empty cover or be equipped as an independent repeater unit.
The cover has two external LEDs for operation and alarm indication.
The cabinet as well as a large cover can be equipped for band selective
operation with adjustable bandwidth. A combined repeater can be
equipped for different bandwidths or different systems.
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.
• CMB Combiner unit, located on the RCC unit in repeaters with an RCC
unit that works in the same system as the repeater.
• RCC unit (optional), see Chapter 6, Optionals. This is located to the
right in the cabinet.
• PSM Power Supply unit, located to the left in the cabinet, and in the
cover, if equipped.
• The repeater is equipped with an R2R, Repeater to Repeater Link
feature that can be used between different repeaters or between the
cabinet repeater unit and the cover repeater unit.
Functional Description ALR Compact Repeater ALLGON Systems AB
5 - 2 Rev. P1D 2000-05 VD203 67/EN - User’s Manual