Reference Manual Part 1

RBS 2206

Indicators Description

EPC bus fault Indicates the state of the EPC bus

Ext alarm One or more supervised external

alarms are active

Fault Fault detected and localised to the

Local mode The RU is in local mode

Operational The RU is operational

Transmission OK Indicates state of transmission on

ports A – D

RF off RF not enabled

Buttons Description

dTRU reset Resets the dTRU

DXU reset Resets the DXU

Local/remote mode Changes RU mode to local or remote

7 Power System

The power system of the RBS 2206 depends on the choice of power supply

and may include a number of units outside the RBS.

The RBS 2206 can be connected either to AC mains supply voltage or to DC

supply voltage.

7.1 AC Mains Supply Voltage

AC mains supply voltage is connected to the cabinet using four AC cables.

If the power supply does not meet the AC power requirements, then filters

and stabilisers must be installed to protect the equipment and ensure proper

operation.

There are two ways to connect power to the base station. They are:

• Single phase, line to neutral

• Single phase, line to line

Note: When single phase line to line is used, each PSU requires two circuit

breakers or fuses.

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N/LZT 720 0225 Uen R6A