Interface with a BioPac System

[JEC]

[edited from a support email]

We're trying to get MediaLab to interface with a biopac physiology
system using a TTL out.

They sent us to the following link for the cabling we need:

http://biopac.com/product.cgi?type=view&item=STP35A

But, $90 seems rather pricey.

I thought I'd check with you to see if you thought that the parameter
we've used to communicate with other systems using TTL-out:

<1:888:500>

This should also work using any DB-25 Male and Female cable (which we can
get for about $10 at CDW).