PMDX Forum

General Category => Parallel Port breakout boards, motherboards, and dedicated accessories => Topic started by: rexx42 on May 13, 2020, 07:10:26 AM

Title: PMDX-108 Input
Post by: rexx42 on May 13, 2020, 07:10:26 AM

Can the PMDX - 108 input board be used with the PMDX 422 to increase the number of inputs and if so what would be the correct way to connect them?

Title: Re: PMDX-108 Input
Post by: 12strings on May 13, 2020, 09:37:56 AM

No.  The "parallel port" pins that the PMDX-108-Input drives are the PMDX-422's dedicated step and direction outputs on the ribbon header.

Title: Re: PMDX-108 Input
Post by: rexx42 on May 17, 2020, 11:38:33 AM

What is the best way to add inputs to the PMDX 422?

Title: Re: PMDX-108 Input
Post by: 12strings on May 21, 2020, 11:30:47 PM

Probably buy another I/O board (POKeys, etc).  The PMDX-422 doesn't appear to have any expansion capabilities.