User's Manual

Ericsson Internal
DESCRIPTION 32 ( 46 )
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CBC/XRX/M (Kai Lian) 2011-05-05 C
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Approved Checked Date Rev Reference
8.4 External Alarm Interface
The RBS 2111 Second Generation supports a maximum of four external
alarms. The alarm device is routed through the access cable hole to the
screw terminals of the OVP in the MU. The external alarms are defined
during installation. They are defined by using the Operation and Maintenance
Terminal (OMT) or from the BSC using the remote OMT.
F
T
Y
P
E
3
R
E
N
C
L
O
I
S
U
R
E
I
P
5
5
0
1
6
8
E
T
L
L
I
S
T
E
D
C
O
N
F
O
R
M
5
T
O
A
N
S
I
/
U
L
6
0
9
5
0
-
1
C
E
R
T
I
F
I
E
D
T
O
C
A
N
/
C
S
A
C
2
2
2
N
O
6
0
9
5
0
-
1
Figure 20 MU-12 External Alarm Interface
8.5 ESB Interface
TG synchronization is the technology used to expand one RBS cabinet with
another RBS cabinet in the same cell. The External Synchronization Bus (ESB)
is the cable connected between the MUs that supports TG synchronization.
The ESB interface is shown in the figures below.