Tait International Limited TBCK4B Manual Do Utilizador

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DRAFT 4 
TB9400 Installation and Operation Manual
Description
11
© Tait Electronics Limited September 2011
1.2
Modules
The 
base station
 consists of a subrack with up to two transmit/receive 
channels.
The single PMU (power management unit) supplies and manages power to 
the whole subrack (refer to 
). One reciter 
and one PA (power amplifier) are needed for each transmit/receive channel. 
There is also a front panel with user controls and fans. The modules are 
interconnected at the front of the subrack. External connections to the 
modules are located at the rear.
Modules come in different variants depending, for example, on the RF band 
or the supply voltage. 
Each module is inserted into the 4 U subrack from the front and is secured 
at the front with a metal clamp. Both clamp and module are easily removed 
for rapid module replacement. The modules are secured laterally with plastic 
guides that clip into the top and bottom of the subrack. These guides can be 
easily repositioned to change the configuration of a subrack. The heavier 
modules are also secured laterally by metal tabs at the rear of the subrack.
The following provides a brief description of the available modules.
Reciter
The reciter module comprises the 
receiver, exciter and digital control 
circuitry. The reciter provides the 
Ethernet interface and system inputs 
and outputs.