Instruction Manual
Page: 16
Model 3100 Series Flame Detector (11/04)
B.2 Connectors
B.2.1
Fire Relay Connector
(J2) Fire Relay
Description
Pin 1 (Left Most) & Pin 2
Normally Open Side of Relay
Pin 3 & Pin 4 (Middle)
Common or Center Side of Relay
Pin 5 & Pin 6 (Right Most)
Normally Closed Side of Relay
B.2.2
Verify and Aux. Fault Connector
(J3) Verify/Aux.
Description
Pin 1 (Left Most) & Pin 2
Verify Relay Common Side of Relay
Pin 3 & Pin 4
Verify Relay NO or NC Side of Relay
Pin 5
Aux. Fault Relay Common Side of Relay
Pin 6 (Right Most)
Aux. Fault Relay NO or NC Side of Relay
B.2.3
Fault Connector
(J4) Fault Relay
Description (Normally Energized State)
Pin 1 (Left Most)
Normally Closed Side of Relay
Pin 2 (Middle)
Common Side of Relay
Pin 3 (Right Most)
Normally Open Side of Relay
B.2.4
Power/Communications Connector
(J5) Power/Comm.
Description
Pin 1 (Left Most) & Pin 5
Power (DC -)
Pin 2 & Pin 6
Communication RS 485 (-)
Pin 3 & Pin 7
Communication RS 485 (+)
Pin 4 & Pin 8 (Right Most)
Power (DC +)
B.2.5
3100-06 Connectors
(J2) Connector
Description
Pin 1 (Left Most)
Power (DC -)
Pin 2
Communication RS 485 (-)
Pin 3
Communication RS 485 (+)
Pin 4
Power (DC +)
Pin 5
4-20mA Negative
Pin 6
4-20mA Positive
Pin 7 to Pin 8 Jumper (Right Most)
Enables 4-20 mA