NTI ENVIROMUX SENSOR INSTALLATION
7
Contact Sensors
Some sensors do not have RJ45 connectors on them and instead have terminal blocks. These can either be connected to the
"DIGITAL IN" connectors or they can be terminated and plugged into the remaining RJ45 connectors (see Figure 6). (The
illustration uses CAT5 patch cable to make cable connection easy.) Examples of these sensors include E-IMD (motion detector),
E-IMD-CM (ceiling mount motion detector), E-SDS
(smoke detection), and E-GBS (glass break sensor).
Note: For sensors requiring 5VDC power source,
substitute the wire connected to pin 4 (see below)
instead of pin 7.
When applying CAT5 cables to contact sensors for plug-in
to the RJ45 Sensor sockets, the following socket-to-
sensor wiring must be followed:
RJ45 Sensor Socket Pinout
Pin #
Pin Name
1 GND
2 SENSE
3 RS485
+
4 +5
VDC
5 TAMPER
SWITCH
6 RS485
-
7 +12
VDC
8 GND
Figure 6- Contact sensor wired to RJ45 socket
Digital In Terminals
To connect contact sensors without using RJ45 connectors, terminal blocks have been provided labeled "DIGITAL IN". Two wire
switch-only type sensors can be connected to the plus (+) and minus (-) terminals (E-16D) or the plus (+) and ground ( )
terminals (E-2D/5D). If the sensors require a 12V power source to operate, these models include 12V and ground terminals for a
power connection. Connect each two-wire or four-wire contact sensor using 16-26 AWG wire.
Figure 7- “DIGITAL IN” terminal blocks on ENVIROMUX Systems
FYI: The terminal block is removable for easy sensor wire attachment if needed.