User Manual

MBF, Multi Band Repeater

PRODUCT DESCRIPTION AND USER'S MANUAL

4.6.2 Input / Output Levels

By using the input/output values together with the gain

settings in the repeater it is possible to monitor the

functionality of the amplifier chains. These measurements can

also be useful during installation of the repeater.

Monitoring the output level is helpful in determining how

much the gain must be increased to reach maximum output

power.

The input and output power levels to and from the repeater are

constantly monitored.

If the power levels are lower than the lowest detectable level,

the RMC reports a dash.

Note! Uplink power levels can only be displayed when there is

a user in the repeater coverage area generating traffic.

In this example there is no signal on the uplink nor on the

downlink.

4.6.3 ALC

The repeater is equipped with an

ALC, Automatic Level Control.

The ALC is an immediate reaction to

the input signal level which keeps the

output level to the maximum defined

level.

+20

Input Signal, dBm

Output Power Level, dBm

Gain 70dB

-50

ALC

4.7 Hardware Identification

A repeater contains a number of different modules. Some of these are active devices meaning that they

contain a micro controller used for monitoring module parameters. Some are passive devices, for example the

external alarm interface.

The Control Module communicates with the active devices using a master/slave configuration, where the

Control Module is the master and the active devices are slaves. Each active device uses its serial number as

an address. A slave only replies to requests with the correct address information.