IDC26 Breakout.
The Breakout board can be used along with the BeagleBox and the DriveBox . It passes all signals from one IDC26 connector to the other while also providing a place to make connections not used by the DriveBox. Use IDC26 cables like the one shown here

The Pn numbers denote the Pin usage from a DB25 connector usually used on a standard DB25 parallel port. These pins are driven by the BBB in the BeagleBox and have the following pinouts(P8-10 represents pin 10 on bus labeled number 8 of the BeagleBone Black Processor board):
Outputs
P8-10 - P1 output
P8-7 - P14 output
P9-11 - P16 output
P9-13 - P17 output
Inputs
P9-11 - P10 input (typical STOP switch)
P9-13- P11 input (typical X Home Switch)
P9-23 - P12 input (typical Y Home Switch)
P9-41 - P13 input (typical Z Home Switch)
P8-9 - P15 input (typical A Home Switch)

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