Connect the IMU to the PwrPak7
Connect the IMU to the COM1 or COM2 serial port on the PwrPak7. Both of these serial ports are available on the HD26 COM PORTS connector on the PwrPak7.
IMU-CPT, IMU-KVH1750, IMU-P1750, IMU-FSAS and OEM-IMU-STIM300D
These IMUs require an additional output or input from the HD26 COM PORTS connector on the PwrPak7 to synchronize the IMU and receiver. See Table: Additional IMU to PwrPak7 Connections.
If using an IMU-KVH1750 or IMU-P1750 not purchased through NovAtel, the baud rate of the IMU must be changed to 460,800 bps and the output method changed to MSYNC,EXT. For information about changing the IMU baud rate, see IMU-KVH1750 and IMU-P1750 Baud Rate Conversion.
NovAtel IMU Interface Cables
An interface cable is available from NovAtel for each IMU supported by OEM7 receivers. The interface cables provide access to the IMU power and communication signals. For information about these cables, refer to the applicable IMU in the IMU Technical Specifications.
PwrPak7 Cables
The following communication cable is available from NovAtel for connecting an IMU to the PwrPak7.
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PwrPak7 IMU Cable (01019767)
This cable connects the PwrPak7 to an IMU in an IMU Enclosure (IMU-ISA-100C, IMU-LN200, IMU-LN200C, IMU-HG1900 or IMU-µIMU-IC) using the COM1 serial port.
This cable is applicable to SPAN systems with an IMU in the IMU Enclosure that do not require the EVENT inputs, EVENT outputs, PPS output or the other serial COM ports. -
PwrPak7 All I/O SPAN Cable (01020004)
This cable provides access to all of the signals available on the PwrPak7 26 pin D-SUB connector. Use the COM2 connector on this cable to connect the NovAtel IMU Interface cables. This connector includes the COM2 serial port signals and the additional signal required by the IMU-CPT, IMU-KVH1750, IMU-P1750, and IMU-FSAS.
Custom IMU Interface Cable Requirements
The HD26 COM PORTS connector provides access to three serial COM ports, three EVENT inputs, three EVENT outputs, the wheel sensor input and PPS output. When selecting or building the cabling for the PwrPak7, make sure all of the required input and output signals are accounted for in the HD26 COM PORTS connector cabling design.
For information about the DB26 COM PORTS pinout, refer to PwrPak7 Connectors.
For information about the IMU port pinout, refer to refer to the applicable IMU in the IMU Technical Specifications.
Some IMUs require an additional signal from the receiver to synchronize the receiver and IMU.