Ericsson RBS 2106 Reference Manual page 101

5.3.3 DF Connection Field
Figure 40
This is the connection field for:
•
•
•
•
•
Connections lead to the DXU, the Transport Module, and equipment
installed in OXU slots. Power is supplied by the cabinet's internal
power system.
Transmission
The transmission interfaces have the capacity to handle all lines
necessary for full EDGE functionality on 12 TRXs.
Up to four transmission lines can be connected at here. The DF can be
equipped with optional OVP-modules for more transmission lines. For
more information see the section OVP Module for PCM Lines below.
External Alarm Connections
It is possible to define up to 16 external alarms. The external device
sets the alarm by either an open or a closed condition.
The alarm device connected to the screw terminals should be isolated
relay contacts. A closed contact (logic zero) is required to be below
2 k
through a closed 0
with an open contact is 24 V DC.
EN/LZT 720 0008 P2A
2001-11-28
RBS 2106 DF
Transmission
External alarms and overvoltage protection
ESB (TG-synch.)
GPS/LMU
Power for external use (+24 V DC).
, and an open contact (logic one) above 100 k
contact is 1.2 mA. The voltage between terminals
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Product Data RBS 2106
Distribution module
OVP modules
External alarms
. The current
P008706A
99 (485)