USER MANUAL FOR COMFLEX-6900
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Page 35
3.5.6 RU EXTERNAL ALARM CONNECTION
For RU external alarm, there is an 8-pin waterproof connector. The following figure and table show the pin
allocation and definition. Pin numbering are shown looking-into the connector on the enclosure.
Figure 33:
Pins Allocation for “EXT_ALM” Port of RU
3.5.7 MU BTS ALARM CONNECTION
The equipment alarms can be signaled to the BTS via voltage-free relay contacts. The voltage-free relay
connections are connected to the DB-9 port
“BTS_ALAM” located on the MU. The following figure and
table show the pin allocation and definition.
1
2
4
3
5
6
7
9
8
BTS_OPEN
BTS_CLOSE
BTS_ COM
Figure 34
: Pins Allocation for “BTS_ALM” Port
Table 6
: Pin Definition of “BTS_ALM” Port
Pin Number
Definition
Description
1
BTS_OPEN
Connects to the open terminal of the voltage free relay.
2
BTS_COM
Connects to the common terminal of the voltage free relay.
3
BTS_CLOSE
Connects to the close terminal of the voltage free relay.
4 ~ 9
NC
Reserved.