User's Manual

Table Of Contents

DRAFT 1

TB9300 Installation and Operation Manual Description 11

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 “Theory of Operation” on page 19). 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 4U 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.