Cobham Wireless
-
Coverage
BSF0060 User Handbook
www.cobham.com/wireless
Document number: BSF0060HBK
Issue number: 5
Date: 14/05/2018
Page 22 of 43
3.6.4.
External Interface Board, Cable and Terminal Block
The repeater is equipped with an external alarm interface board. The connector terminal block for the
external alarms is located at the bottom of the repeater.
Connect the alarm cords to the terminal block according to the layout below (terminals 14 – 18 are
not used).
1
External alarm 1A
10
Alarm 0V
2
External alarm 1B
11
Relay Output 1A
3
External alarm 2A
12
Relay Output 1B
4
External alarm 2B
13
GND
5
External alarm 3A
14
Not used
6
External alarm 3B
15
Not used
7
External alarm 4A
16
Not used
8
External alarm 4B
17
Not used
9
Alarm +15V
18
Not used
External Alarm:
Four external alarm sources can be connected to the repeater; the alarm operating voltage must be
between 12 and 24VDC.
Alarm polarity can be configured:
●
Active-low - when there is no voltage the alarm indicator will show a fault.
●
Active-high - an applied voltage of between 12 and 24 V will cause the external alarm
indicator will show a fault.
The repeater can supply +15 VDC to an external alarm source through terminals 9 and 10. The
maximum allowed load is 100mA.
Relay Output:
The Relay Output (terminals 11 and 12) can be connected to an external device to indicate an alarm.
The output can be configured to trigger on any number of internal and external alarms. The
maximum current that can be supplied is 100mA.
