61
Tocsin 750R Rack System Connector Pin Outs
Relay Outputs
Digital Input
4-20mA Input Loop Powered
4-20mA Input Loop Powered
Highway Connection
HMI Connection (Controller)
NO
NC
COM
Note relays can be set to be normal
NC
Screen
L1
L2
0V DC
Screen
Analogue In
24V DC
Loop Powered mA Sensor
Analogue In
24V DC
0V DC
Powered mA Sensor
Analogue In
24V DC
Screen
2-Wire Addressable Sensor
L1
L2
Screen
L1
L2
0V DC
Screen
Analogue In
24V DC
NC
Screen
In
24V DC
Switched inputs typical of E-Stops
Break glass units, call points etc
To Next Detector
Node
Guidance only refer to 2-Wire systems installers guide for full details. Note connector orientation. All
connectors viewed from rear panel.
1
2
3
4
5
B
A
0V
Modbus RTU Interface see installers
guide for protocol instructions and
available registers
Cable end connector type Phoenix ref 177 7811 MSTB 2.5/3 STF 5.08
Cable end connector type Phoenix ref 185 0877
Cable end connector type Phoenix ref 185 0877
Cable end connector type Phoenix ref 185 0877
Cable end connector type Phoenix ref 177 7824
Cable end connector type M12 5 Way Male
MC 1.5/4 STF 3.81
MC 1.5/4 STF 3.81
MC 1.5/4 STF 3.81
MSTB 2.5/4 STF 5.08
Typical of RS 877 1148