APPENDIX A IMU Technical Specifications
OEM7 SPAN Installation and Operation User Manual v14
163
A.5.2 IMU-IGM Ports
Pin #
Label
Description
1
MIC_TX/
MODE2 open: MIC port transmit (RS-232)
MODE2 low: MIC port transmit positive (RS-422)
2
MIC_TX-
MODE2 open: No connection
MODE2 low: MIC port transmit negative (RS-422)
3
DGND
Digital ground
4
V+
IMU-IGM power supply input, positive
5
V-
IMU-IGM power supply input, negative
6
MIC_RX/
MODE2 open: MIC port receiver (RS-232)
MODE2 low: MIC port receive positive (RS-422)
7
MIC_RX-
MODE2 open: No connection
MODE2 low: MIC port receive negative (RS-422)
8
DGND
Digital ground
9
Reserved
Reserved
10
Reserved
Reserved
11
DGND
Digital ground
12
Reserved
Reserved
13
MODE2
Mode 2 input, controls MIC port standard
14
Reserved
Reserved
15
Reserved
Reserved
Table 57: IMU-IGM Main Port Pinout
Pin #
Label
Description
1
ODM_A+
Wheel sensor input A positive
2
ODM_B+
Wheel sensor input B positive
(No connection on IMU-IGM-S1)
3
Reserved
Reserved
4
WS_VOUT
Wheel sensor output voltage (12 VDC)
5
DGND
Digital ground
Table 58: IMU-IGM AUX Port Pinout