Table T5. Pin assignments of underwater mateable stab plate connectors.
| Function (OBH) | Connection of downhole cable |
Connection inside
of MEG |
Connection inside of OBH | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Connector for OBH
(MSSK-8#20-CCP) |
Seacon blue cable
|
Neutral
buoyancy cable |
UMC pin/A,B
|
MEG D-sub9 (for OBH)
|
OBH D-sub15
|
Cable inside
of OBH |
Connector of OBH
(Seacon MSSK-8#20-BCR) |
|||
| Power +Vin | 1 | Brown | Red/in | 1/A | 8 (red) | 8 | Red | 1 | ||
| 0Vin | 2 | Gray | Black/in | 2/A | 9 (green) | 7 | Green | 2 | ||
| 0Vin | 3 | White | Blue/out | 2/B | 9 (green) | 7 | Green | 3 | ||
| Signal GND | 4 | Yellow | Green/out | 1/B | 5 (black) | 9 | Black | 4 | ||
| Rx(+) | 5 | Orange | Red/out | 3/B | 3 (orange) | 3 | Blue | 5 | ||
| Rx(-) | 6 | Red | Yellow/out | 4/B | 4 (white) | 10 | Pink | 6 | ||
| Tx(+) | 7 | Blue | Green/in | 3/A | 2 (blue) | 1 | Orange | 7 | ||
| Tx(-) | 8 | Green | Blue/in | 4/A | 1 (pink) | 2 | Pink | 8 | ||
Notes: MEG = multiple-access expandable gateway, OBH = ocean borehole seismometer, UMC = underwater mateable connector. Function abbreviations: Rx = receive, Tx = transmit, GND = ground, Vin = power supply input.