Use the pin-one mark to orient the connector. The map begins with RD1 and RD2 on pins 1 and 2. Data labels in this definition run from RD1 on pin 1 to BD3 on pin 14.
Connector pin assignments
| Pin | Signal | Pin | Signal |
|---|---|---|---|
1 | RD1 | 2 | RD2 |
3 | GD1 | 4 | BD2 |
5 | GND | 6 | RD3 |
7 | RD4 | 8 | GD2 |
9 | BD2 | 10 | GND |
11 | RD5 | 12 | RD6 |
13 | GD3 | 14 | BD3 |
15 | CLK | 16 | GND |
17 | LAT | 18 | GND |
19 | OE | 20 | GND |
Frequently asked questions
Where are the control signals on HUBvP26.66?
CLK on pin 15, LAT on pin 17, OE on pin 19. Match these labels against the mating connector before installing the board.
Which positions are marked ground?
The interface definition marks 5, 10, 16, 18, 20 as GND. Check the connector orientation before counting pin positions.
Why does BD2 appear more than once?
The published interface map uses BD2 at pins 4 and 9. Confirm those positions against the board markings before wiring.




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