Periphery board (500p) FCI2017
Bell follower input
2
36 | 46
Building Technologies
A6V10315038_f_en_--
Siemens Industry, Inc.
2016-02-25
2.5.6 X403 jumper – DEGRADE ALARM SILENCEABLE
Degraded mode behavior of the NAC circuit during an alarm
X403
Jumper position
Function
Meaning
3 - 2
NONSILENCEABLE When degrade mode is active in the system, and an alarm is
present, this setting prevents the user from turning off the
notification appliances.
1 - 2
SILENCEABLE
When degrade mode is active in the system, and an alarm is
present, this setting allows the user to turn off the notification
appliances. The notification devices remain switched off in the
event of a further alarm.
2.6 Bell follower input
The periphery board has an input designed to connect to an external fire alarm control
unit's NAC circuit so that the periphery board's NAC circuits can follow the activation of
the NAC circuits from an external source.
2.6.1 Wiring
NAC is active.
*1) Fire detection device or bell extender.
2.6.2 X801 Bell follower terminal block
Pin
Designation
Description
1
BF (-)
Input from external fire control panel and voice alarm fire
control panel.
The return feed of the external fire control panel's NAC
circuit connects here.
2
BF (+)
Input from external fire control panel and voice alarm fire
control panel.
The active positive output signal of the external fire
control panel's NAC circuit connects here.
Admissible cable cross-section: 1 x 12-18 AWG or 2 x 16-18 AWG
1
2
3
X801
BF
+
-
BF
1
2
*1
-
+