User's Manual

Axell BSF3604-490-510-DP-AC (61-103001) Repeater

Product Description and User’s Manual

4.6 External Alarm and Relay Connections

The repeater is equipped with an external alarm interface card. The connector terminal block for

the external alarms is located at the base of the repeater.

Connect the alarm cords to the plinth according to the pin layout below (pins 14 – 18 are not used).

Figure 4-11: External alarm interface card

located inside Repeater

4.6.1 External Alarm

 Four external alarm sources can be connected to the repeater.

 Alarm operating voltage: between 12 and 24VDC.

 Alarm polarity can be configured:

 Active-low - when there is no voltage the alarm indicator will turn red

 Active-high - an applied voltage of between 12 and 24VDC will cause the external alarm

indicator to turn red.

 The repeater can supply +15 VDC to an external alarm source through pin 9 and 10. The

maximum allowed load is 100mA.

4.6.2 Relay

 Relay (pins 11 and 12) can be connected to an external device to indicate an alarm.

 Can be configured to trigger on any number of internal and external alarms. The

maximum current that can be supplied is 100mA.

Pin 1 External alarm 1A

Pin 2 External alarm 1B

Pin 3 External alarm 2A

Pin 4 External alarm 2B

Pin 5 External alarm 3A

Pin 6 External alarm 3B

Pin 7 External alarm 4A

Pin 8 External alarm 4B

Pin 9 Alarm +15V

Pin 10 Alarm 0V

Pin 11 Relay Output 1A

Pin 12 Relay Output 1B

Pin 13 GND

Pin 14 Not used

Pin 15 Not used

Pin 16 Not used

Pin 17 Not used

Pin 18 Not used