Connect PCI-6225/cables to an existing AT-MIO-64-5 PC card interface.

[MILLPJM]

How do I adapt the new PCI 68 pin cables to existing ISA 50 pin ribbon cable interfaces?

AT-MIO-64-5  to PCI-6225

AT-AO-6  to  PCI-6733

I could use terminal blocks and associated cables, but don't have enough room to mount three sets of terminal blocks, I need small adapters that correspond to correct pinouts for these 4 cards.

[MikeS81]

Hi MILLPJM,

i don´t understand what you want to do. Do you want to connect the "old" AT-AO-6 output card to the "new" PCI-6733 output card?

Mike

[MILLPJM]

I am trying to utilize my existing custom buffer card which was driven by AT-MIO-64-5 and AT-AO-6 with 50 pin ribbon cables. The ISA cards are obsolete and I'm replacing them with new PCI cards, PCI-6225 & PCI-6733, which have a 68 pin interface. I've looked at NI's 68 to 50 pin options, and none seem to match the new card pinout with the old card pinout. So, do I cut off the user end of the 68 pin cables and manually connect the old style interface connector, or do I make a pc card adapter with two connectors that interface the two cables?

[ryannorthington]

MILLPPJM,

What programming language are you using? 

Can you change your applications to write to the desired pins? 

What pins are you trying to map between the two cards?

If you feel that creating your own connector block or changing around the pin configuration is easier then changing your application then I see no problem doing that. 

[MILLPJM]

Interesting suggestion to change the software instead of the hardware. Unfortunately, some of the signals will be shorted out to ground and differential inputs aren't possible because of the mix up in channels.

[Nathan_R]

Hi MILLPJM,

For connecting the PCI-6225 to your custom 50 pin buffer card you can probably use the R6850 or SH6850 cables. These cables are designed to connect a 68 pin MIO card to 50 pin accessories. The R6850 is unshielded and the SH6850 is shielded. I would still check to make sure these cables are wired like you need them. The pin to pin wiring for the R6850 can be found on page 3 of the R6850 Installation Guide. For the SH6850 the wiring is on page 6 of the SH6850 Installation Guide.

In order to connect either of these cables to the PCI-6225 you will also need the SHC68-68M-EPM cable that will go from the small 68 pin connector used on M-series cards to a larger male 68 plug .

For the PCI-6733 I think the best solution for you is going to be creating a custom cable or using terminal blocks to connect the correct pins. The pinout of the AT-AO-6 does not match the standard 50 pin MIO pinout and the PCI-6733 does not match the standard 68 pin pinout so neither of the above cables will work to connect the two together.

Let me know if you have any questions. Take care.

Thanks,

[MILLPJM]

Will the SHC68-68M-EPM cable connect to the R6850 or SH6850 cables, or do I need a sex change adapter? This pinout will work for the J0, but not the J1 connector.

[MILLPJM]

What is the pinout for 184670-02 ?  Is it a different pinout than the 184670-01? If not, then what is the difference between the two parts?

Message Edited by MILLPJM on 03-13-2008 07:31 AM

[ryannorthington]

MILLPJM,

The pinout for the 184670-02 is the same as the pinout in this knowledge base article.  I’m not sure what the differences between the two parts are but the 184670-01 will work with the M-Series cable without any additional adapters.