Connect the External Sensors
Quick Install Guide
– SL2100 Terminals Type B rev 1.0
14
6- Connect External Sensors
The SL2100 can be used to detect the operation of external sensors by connecting to the analogue extension
port that is set to doorphone mode.
The external sensor can be any normally open contact (Form A) for example, push button/panic switch or PIR
detector with a suitable specification.
When the external sensor is closed/activated the SL2100
system will ring a group of extensions in the same way as
the doorphone would.
Description
Specification
External
sensor
Voltage during sensor off (contact open): 25V
Loop current during sensor on/activated (contact closed) : 40mA
Pin
SLI 1-2
RJ45 socket
1
-
2
-
3
Door / sensor 2 T
4
Door / sensor 1 R
5
Door / sensor 1 T
6
Door / sensor 2 R
7
-
8
-
