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7.0 GFM CONNECTOR PIN ASSIGNMENT
7.1 AUX Connector
The following is the pin out for the AUX Connector.
Modbus RS-485 D+ serial port
User supplied Power Input VIN+ (12-28 VDC @100 ma)
CR-A - Will be active when gas flow is within programmed limits.
CR-B – Will be active when gas flow is within programmed limits.
User supply power common VCOM
Modbus RS485 and Vout analog common
Modbus RS-485 D- serial port
Gas Flow Analog output VOUT+ (0.00 – 2.55 vdc)