IMU‑IGM Interface Cable

The NovAtel part number for the IMU‑IGM interface cable is 01019016. This cable provides power to the IMU‑IGM and communication signals between the IMU‑IGM and the OEM7 family receiver.

In the following diagram, the dimensions are in millimetres.

IMU‑IGM Interface Cable Pinout Descriptions
J1 MAIN Pin #	Function	J2 Wire Bundle Label	J3 MIC Port Pin #
1	MIC Port Transmit/Transmit+ (RS-422)		2
2	MIC Port Transmit- (RS-422)		8
3	Digital Ground
4	Battery +	BATT+
5	Digital Ground	BATT-
6	MIC Port Receive/Receive+ (RS-422)		3
7	MIC Port Receive- (RS-422)		7
8	Digital Ground		5
9	Reserved
10	Reserved
11	Digital Ground
12	Reserved
13	MODE 2	MODE 2
14	Reserved
15	Reserved

The MIC port can operate as either an RS-232 or RS-422 serial port.

To set the MIC port to RS-232, leave the MODE 2 pin open/unconnected.
To set the MIC port to RS-422, tie the MODE 2 pin low.

Custom Cable Recommendations

The tables below provide recommendations for creating custom cables to replace the IMU-IGM interface cable (01019016).

Connectors
Connector	Description
J1	DB-15HD, male
J2	DB-9, female

Maximum Cable Length
IMU	RS-232	RS-422
IMU-IGM-A1, IMU-IGM-S1	< 1.2 metres	< 50 metres