Module PCB Features
The following diagram indicates features available on the TOC-750 ‘module’ PCB. Please note
that failure to observe and make correct connections or exceed ratings may result in damage to
the PCB.
Ribbon Cable Connection For TOC-750
Annunciator Display and Options
Local LED Indications
And Up/Down Interface Buttons
Pellistor (Catalytic)
Flammable Gas
Detector Interface
Suitable for IGD
Types MK3, MK6, MK7
2-Wire Highway
Connection
To Next Device
Multi-Function I/O Port 1
Solid State Output or
4-20mA Input or
TOC-10 IP or Gas Meter
Multi-Function I/O Port 2
Solid State Output or
4-20mA Input or
TOC-10 IP or Gas Meter
Connection Point For
IGD Infra-Red, Toxic, PID
or Oxygen Gas Detectors
2-Wire Highway
Connection
To Next Device
P
Y
W
SPCO Relay
Output
DVM Test Point +
DVM Test Point -
Housing
Sealing
Environment
Temperature
Voltage
Communication
Display
Analogue I/P
Sounder
Digital Input
Relay
Pellistor Port
Digital Output
Comm Port
2
3
4
5
6
7
1
Supports IGD Infra-Red, PID, Toxic and Oxygen Gas Detectors
TOC-750 Series ABS or Copper Free Aluminium For ATEX Versions
IP65 (using suitable glanding & splash guard) for TOC-750, IP68 for ATEX Versions
0 -95% RH Non Condensing
Not Polarity Dependant
12-28V DC
Suitable for use with TOC-10 Link Function, switch/call point, totalising count
85dB (Option for TOC-750 Annunciators)
0-55 Deg C
IGD 2-Wire Highway Operating IGD S Protocol
5A Non Inductive Loads 230V AC
24V DC 100mA Combined For Both Outputs Typically for LED Beacon Sounders
4-20mA, selectable range, units and tag information
Option to Interface to MK3, MK6 or MK7 Pellistors
2 x 8 Programmable LCD with RGB Backlight (Option for TOC-750 Annunciators)
Module PCB Basic Interface Specifications
2
7
5
6
4
3
3
1
1
