International Gas Detectors TOC-635, Installer'S Manual

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Digital Input
I/O Port 1
I/O Port 2
Wiring to I/O Port 1 and 2
Each Detector Node has 2 multi-finction input - output ports. These can be configured
independently as either 4-20mA inputs or solid state outputs. The digital inputs are typically
intended to totalise pulse counts, mainly from gas meters, or use for slam switch/ E-Stop ansd non
illuminated call point applications
V+
4-20mA
V+
4-20mA
If You Are Wiring Digital Inputs (24V)
Option Then You Need to Include a 560
Ohm Resistor to Limit Current Around the
Circuit
Select IN DIGITAL 24V Option
If You Are Wiring Digital Inputs (0V) Option
Allows Logic inputs from External Devices.
Anything Less Than 1.5V DC is Treated as
Off Anything Greater is On
Select IN DIGITAL 0V Option
TOC-10 Unit 1 TOC-10 Unit 2
External System
V+
4-20mA
Spare
I/O
0V Spare
I/O
0V
0V
I/O Digital
Solid State Input From TOC-10 Gas Detector
The Solid State Input can be used to
interface to IGD TOC-10 Series
Flammable Gas Detectors. Wire as
Indicated and the Input Will Read the
Two Alarm Levels From the TOC-10.
This will display on an Addressable
Controller in the Same Manner as Any
Other Gas Detector.
Up to 6 TOC-10 Detectors can be Daisy
Chained to the Input
Select IN DIGITAL 0V Option
Screen cabling interfaced to I-O port 1 or 2.Typical Belden Style Security Cable 4502 FE, Foil Screen
The resistor is not required from the PCB version 4.