Connect the IMU to the OEM7 Receiver Card
The method used to connect the IMU depends on the IMU and OEM7 receiver in the system. IMUs that are contained within an IMU enclosure communicate with the OEM7 receiver using a serial port. IMUs not contained in an IMU enclosure communicate with the OEM7 receiver either through an interface card (MIC or UIC) or direct connection (SPI or Serial).
IMUs in an enclosure typically have IMU or UIMU at the start of their names (for example, IMU-ISA-100C, IMU-µIMU-IC or IMU-IGM-S1).
IMUs not in an IMU enclosure typically have OEM at the start of their names (for example, OEM-IMU-ISA-100C, OEM-IMU-µIMU or OEM-IMU-STIM300).
|
IMU |
Interface Card |
Event Signal |
Receiver Connection Method |
Receiver |
|---|---|---|---|---|
|
IMU-CPT |
No |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
|
IMU-FSAS |
No |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
|
IMU-KVH1750 |
No |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
|
IMU‑P1750 |
No |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
|
IMU-H58 |
Yes - Enclosure |
N/A |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
UIMU-HG1700-A58 |
Yes - Enclosure |
N/A |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
IMU-HG1900 |
Yes - Enclosure |
N/A |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
IMU-ISA-100C |
Yes - Enclosure |
N/A |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
IMU-LN200 |
Yes - Enclosure |
N/A |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
IMU‑LN200 (SPAN IMU enclosure) |
Yes - Enclosure |
N/A |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
UIMU-LN200 |
Yes - Enclosure |
N/A |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
IMU-µIMU-IC |
Yes -Enclosure |
N/A |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
IMU-IGM-A1 |
Yes - Enclosure |
N/A |
Serial port (RS-232 or RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
IMU-IGM-S1 |
Yes - Enclosure |
N/A |
Serial port (RS-232 or RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
OEM-IMU-HG1900 |
Yes - SDLC or UIC |
N/A |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
OEM-IMU-HG1930 |
Yes - SDLC or UIC |
N/A |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720 |
|
OEM-IMU-ISA-100C |
Yes - UIC |
N/A |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720 |
|
OEM-IMU-µIMU |
Yes - UIC |
N/A |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
OEM‑IMU‑µIMU‑IC‑UART |
No |
Event In |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
OEM-IMU-STIM300 |
No |
Event In |
Serial port (RS-422) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
OEM-IMU-HG4930 |
No |
PPS |
Serial port (TTL) |
OEM719, OEM729, OEM7600, OEM7700, OEM7720, PwrPak7 |
|
OEM-IMU-ADIS-16488 |
No |
Event In & Event Out |
OEM7600, OEM7700, OEM7720 |
|
|
OEM-IMU-EG320N |
No |
Event In |
OEM7600, OEM7700, OEM7720 |
|
|
OEM-IMU-EG370N |
No |
Event In |
OEM7600, OEM7700, OEM7720 |
Connect an IMU Enclosure to an OEM7 Receiver Card Using a Serial Port
An interface is needed between the OEM7 receiver card and IMU that provides:
-
Communication signals to the OEM7 receiver
-
A serial port connection between the IMU and receiver
-
Power to the receiver
-
Power to the IMU
For information about the interface requirements for the OEM7 receiver card, see Preparing the Data, Signal and Power Interface.
For information about the interface to the IMU, refer to the technical specifications of the IMU in IMU Technical Specifications.
The interface between the OEM7 receiver card and IMU must include circuitry to convert from the LVCMOS signal levels of the receiver COM port to the RS-232 or RS-422 signal levels of the IMU COM port.
The exception is COM1 on the OEM729 which provides either RS-232 or RS-422 signal levels.
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 these parameters, see IMU-KVH1750 and IMU-P1750 Baud Rate Conversion.
Connect an OEM IMU to an OEM7 Receiver Card Using a UIC
The UIC provides power to the IMU and communication between the IMU and receiver. For information about using a UIC, see UIC Installation.
Connect an OEM IMU to an OEM7 Receiver Card Using a MIC
The MIC provides power to the IMU and communication between the IMU and receiver. For information about using a MIC, see MIC Installation.
Connect an OEM IMU to an OEM7 Receiver Card Using a Direct Connection
Some OEM IMUs can communicate with the OEM7 receiver card with out using an interface card. For information about using a direct connection, see: