APPENDIX A IMU Technical SpecificationsOEM7 SPAN Installation and Operation User Manual v1 113A.5.2 IMU-IGM PortsPin # Label Description1 MIC_TX/MIC_TX+ MODE2 high or open: MIC port transmit (RS-232)MODE2 low: MIC port transmit positive (RS-422)2 MIC_TX- MODE2 high or open: No connectionMODE2 low: MIC port transmit negative (RS-422)3 DGND Digital ground4 V+ IMU-IGM power supply input, positive5 V- IMU-IGM power supply input, negative6 MIC_RX/MIC_RX+ MODE2 high or open: MIC port receiver (RS-232)MODE2 low: MIC port receive positive (RS-422)7 MIC_RX- MODE2 high or open: No connectionMODE2 low: MIC port receive negative (RS-422)8 DGND Digital ground9 Reserved Reserved10 Reserved Reserved11 DGND Digital ground12 Reserved Reserved13 MODE2 Mode 2 input, controls MIC port standard14 Reserved Reserved15 Reserved ReservedTable 44: IMU-IGM Main Port PinoutPin # Label Description1 ODM_A+ Odometer input A positive2 ODM_B+ Odometer input B positive(No connection on IMU-IGM-S1)3 Reserved ReservedTable 45: IMU-IGM AUX Port Pinout
