IMU-KVH1750 and IMU-P1750 Cable
The NovAtel part number for the IMU-KVH1750 and IMU-P1750 cable is 01019211. This cable provides power to the IMU from an external power source and enables communication between the receiver and the IMU.
In the following diagram, the dimensions are in millimetres.
IMU-KVH1750 and IMU-P1750 Cable
|
J1 (15 Pin Micro D Female) |
P2 (Female DB9) |
P3 |
||
|
Pin # |
Signal Name |
Pin # |
Signal Name |
Labels |
|
1 |
TX+ |
2 |
RX+ |
|
|
2 |
TX- |
8 |
RX- |
|
|
3 |
RX- |
7 |
TX- |
|
|
4 |
RX+ |
3 |
TX+ |
|
|
5 |
Reserved |
|
|
|
|
6 |
Reserved |
|
|
|
|
7 |
Reserved |
|
|
|
|
8 |
Reserved |
|
|
|
|
9 |
Power Return |
|
|
PWR- |
|
10 |
VDC Power |
|
|
PWR+ |
|
11 |
MSync |
1 |
IMU Event Out (Sync) |
|
|
12 |
TOV-Out |
9 |
Event In |
|
|
13 |
Reserved |
|
|
|
|
14 |
Reserved |
|
|
|
|
15 |
Signal Ground |
5 |
Signal Ground |
|
|
Shell |
Chassis Ground |
Shell |
Chassis Ground |
|
A hardware change by KVH regarding KVH1750 IMUs (manufactured after November 2015) expect a differential MSYNC signal input (J1 (15 pin micro D female) of the IMU: Pin 11 MSync+, Pin 7 MSync-). This was previously a single ended input signal on Pin 11 only. The NovAtel VARF signal used to provide the MSYNC to the IMU remains single ended, however significant testing has been completed with the existing IMU-KVH1750 Cable (01019211) in safe environments (no interference sources). No issues or failures have been observed. There are no plans to modify NovAtel cables at this time. However, for any custom or OEM cable solutions, it is recommended to follow KVH guidelines in providing a differential MSYNC signal, converting the VARF to differential and properly shielding for optimal reliability.
Custom Cable Recommendations
The tables below provide recommendations for creating custom cables to replace the IMU-KVH1750 and IMU-P1750 cable (01019211).
|
Connector |
Description |
|---|---|
|
J1 |
Micro-D, 15-pin, female |
|
J2 |
DB-9, female |
|
IMU |
RS-422 |
|---|---|
|
IMU-KVH1750 IMU-P1750 |
< 1.5 metres |