Detcon 10C Facilities - Manual (Page 17)

Model 10C
10C Control Module Instruction Manual Rev. 0.0 Page 13 of 14
8.0 Model 10 Facilities Module Backplane Pinouts
Note that the RS485 Channel 1 is used by the FM to communicate to Modbus Slave devices: namely,
MOD 10 SSC modules. Note that RS485 Channel 2 is wired to pins C7 and C8, for RS485 signals A and
B, respectively. This second channel is the connection to the Master Host for the Facilities Module, on
which the FM is a Modbus Slave device.
The hardware difference between an FM and a 10C module is that the FM has removed the fuse
components that connect the Current Loop Input and Current Loop Output to the connector pin (note
components F1 and F4 are removed), and also the front panel for the FM has installed a mini-USB
connector.
MODEL 10C BACKPLANE PINOUT
A1 ALARM 1 N.O. CONTACT C1 ALARM 2 CONTACT COMMON
A2 ALARM 1 N.C. CONTACT C2 ALARM 2 CONTACT N.C.
A3 ALARM 1 CONTACT COMMON C3 ALARM 2 CONTACT N.O.
A4 FAULT OPEN COLLECTOR C4 FAULT CONTACT COMMON
A5 RS485-A, CHANNEL 1 C5 FAULT CONTACT N.C.
A6 RESET INPUT ACTIVE LOW C6 FAULT CONTACT N.O.
A7 RS485 SHIELD C7 RS485-A, CHANNEL 2
A8 RS485-B, CHANNEL 1 C8 RS485-B, CHANNEL 2
A9 ALARM 1 OPEN COLLECTOR C9 (NOT CONNECTED)
A10 SENSOR POWER RETURN C10 SENSOR POWER +
A11 SENSOR POWER RETURN C11 SENSOR POWER +
A12 SENSOR POWER RETURN C12 SENSOR POWER +
A13 ALARM 2 OPEN COLLECTOR C13 (NOT CONNECTED)
A14 POWER IN RETURN C14 POWER IN +
A15 POWER IN RETURN C15 POWER IN +
A16 POWER IN RETURN C16 POWER IN +