https://www.ximea.com/support/wiki/usb3/io_pinning_and_cable
xiQ - Input/Output Pinning and Cable¶
Input / Output Receptacle Location¶
IO interface receptacle is located on back side of the camera:

IO Receptacle Pinning¶
Pinning of the IO receptacle:

| Pin number | Signal | 
| 1 | Digital Input (VDI) | 
| 2 | Common (IO Ground) | 
| 3 | Digital Output (VDO) | 
| SHELL | Common (IO Ground) | 
IO Receptacle Part Number¶
HIROSE SR38-4R-3S(71)
IO Cable¶
| Item | Description | 
| 1 | HRS SR38-4P-3P(71)- Hirose SR38 Series Male Connector | 
| 2 | Process Ends | 
| 3 | A12-1709 [OD=3.30mm] <BLK> (10/0.120x3C) + 32/0.120 27AWG 3Core Line Cord | 
| 4 | Cable Label | 
Cable wiring:¶
| Pin number | IO Signal | Wire Colour (old) | Wire Colour | 
| 1 | Digital Input (VDI) | Red | Red | 
| 2 | GND (Common IO Ground) | Green | Black | 
| 3 | Digital Output (VDO) | Blue | White | 
| SHELL | Cable shield | Black | Black (thicker) | 

