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Information Specific to 19” Rack Versions
Tocsin 750R System Controller
Tocsin 750 controllers are available as a 3U 19” rack version. Operating software is the same as the
wall mount versions already discussed.
Differences relate to the layout of the controller and fitted options. These are illustrated on the following
pages.
TOC-750R-24
International Gas Detectors
Advanced Addressable Gas Detection System
ACCESS
KEY
3U (133mm)
325mm Depth Over Connectors
40mm
Menu Access Key (Software Option)
USB Port
Panel Alarm Sounder
7” Colour Touch Screen
RELAY
1 ... 12
I/O
1 ...12
HW
1
HW
3
HW
2
HW
4
POWER IN
HMI
Alarm relay outputs SPCO
Highway Connections 1 to 4
Not used if key switch fitted (Channel 2)
Digital Input Channel 1
Digital Input Channel 3
Digital Input Channel 4
I/O Ports Channels 5 thro’ 12
Analogue 4-20mA input 0-100%LEL
by default. Note these ports are
configurable using Android tablet
service tool
Modbus Port
24V DC Power in
When mounting into rack systems ensure the enclosure is supported using rack trays/angles.
DO NOT MOUNT USING ONLY THE FRONT PANEL
Relay 11 Dedicated for SIL any Alarm Level 1 Breach
Relay 12 Dedicated for SIL any System Fault
