39
Tocsin 650/750 Addressable Relay Card Input Ports
4-20mA Signal
24V DC
4-20mA Signal
24V DC
0V DC
Loop Powered Detectors
3 Wire Detectors
Typical IGD Loop Powered
4-20mA Detectors
Pressure
H2S
Oxygen
HCN
CO
NO
NO2
HCL
Temperature
H2
CL
O3
SiH4
Pellistors Based Detectors
Thermal Conductivity
Typical IGD Loop Powered
4-20mA Detectors
PID Based Detectors
Infra Red Based Detectors
Relay cards also have analogue and digital inputs that can be used to read data onto the system
from external devices. Setup of the inputs, type, range, addressing etc is controlled via IGD’s
Android Apps. Wiring options are indicated below. Note the differences between Version 1 and 2
PCB assemblies.
Note 1
Note 2
Note 1
Note 2
These Ports are not used on version 1 PCB assemblies limiting the PCB to a maximum of 6
analogue inputs or 8 digital inputs including ports 9 and 10
These Ports are designated to be digital inputs only.
10
9
8
7
6
5
4
3
2
1
Summary of Contents for 2-Wire Systems
Page 4: ...3 SECTION 1 MOUNTING DETAILS FOR EQUIPMENT...
Page 9: ...8 SECTION 2 SITING GAS DETECTORS...
Page 16: ...15 SECTION 3 GENERAL CABLING PRINCIPLES CABLE TYPES AND CABLE SIZING...
Page 23: ...22 SECTION 4 MAKING DEVICE CONNECTIONS TO DETECTOR NODES...
Page 35: ...34 SECTION 4 Control Panel Interfaces and Connections...
Page 51: ...50 Notes...
