User's Manual

Wideband Radio Head Optional Connections
044-05251 Rev A 3-7
Figure 3-8 External alarm connection
Fiber Link Interface (FLI)
The FLI feature makes it possible to interconnect WRHs. By using an RF distribution fiber network, no
wire or other communication device is required.
Main Power Breakdown Relay
To be able to distinguish PSU faults from power failure, a main power breakdown relay can be used.
This relay is not included in the WRH. It has to be mounted outside the WRH cabinet. The relay
intended for this purpose must fulfil the following specifications:
Closing time: Max. 30 milliseconds
Insulation coil/contact: Min. 4KV
A main power connected relay must also be in compliance with valid local regulations.
Table 3-2 Main Power Breakdown Relay Connection
Step Action
1 Connect a current less closed relay contact to pin AI1 and AIC on the P33 alarm connector, see Fig-
ure 3-11. Alarm is initiated by short-circuiting pin AI1 and AIC in the P33 port.
2 Connect the relay coil. It must be supplied from the same fuse as the WRH
3 After commissioning, select Mains Breakdown in the alarm configuration window in OM-Online or
OMS. Refer to the OM-Online User Manual
MS
DPX
ANT
TEST
DC
-30 dB
-20 dB
MS
DPX
ANT
TEST
DC
-30 dB
-20 dB
POWER SUPPLY UNIT
ALLGON IN NOVATION
SWEDEN M105 R6
1
PARKING
FOR W5
W5
8
P27
W6B 10
1
P33
ALAR M
P23
LNA
UP-LINK
P32
MODEM
A
U
X
1
P28
DOOR
5
9
6
1
1
16
1
1
M
-
>
S
P11
P34
8
9
15
P26
15 16
S
-
>
M
1
2
3
89
P
3
6
5
X0A
X0B
2
V2
1
16
P12 P13
1
1
1
16
16
16
P4
P5
P6
c
b
a
c
b
a
c
b
a
c
b
a
1P232
1
b
a
1
16P3
16
1
16
P14
1
V1
1
1
1
1
1
4
6
1
15
6
9
15
2
16
1
2
4
5
8
5
P35
P21
PSU
6
10
P31
PC
P29
P24
P25
GND
7
6V6
LNA
DOWN-LINK
LED
P22
1
2
P28 P33