Climate Protection
31.2.5 Power Connection
At start and restart of the RBS, the connection of the RBS power
system to the incoming AC mains and the connection of the users to the
DC power in the RBS depends on the current internal temperature.
There are a number of start-up scenarios, based on the internal
temperature at the moment of startup:
• The internal temperature is within the safe range.
− The RBS power system and the user are connected.
• The internal temperature is below the lower limit for safe function.
− The internal temperature is increased by heating to above
the lower limit for safe. Then the power system and the
users are connected.
• The internal temperature is above the upper limit for safe function.
− The RBS power system is connected but the users are not.
However, as soon as the internal temperature falls below
the upper limit for safe function, the users are connected.
31.2.6 Power Disconnection and Reconnection
The users are disconnected from the DC power when the internal
temperature is outside the safe range.
When the internal temperature has returned back within the safe range,
the users are reconnected to the DC power.
EN/LZT 123 2697 R5A
1998-08-13
185 (306)
© Ericsson Radio Systems AB
— All Rights Reserved —
To Next Page
Loading...
