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On some DMA 40-pin/80-wire cable, there is a hole on one wire at one
end of the cable. What's the purpose? Is this a newer design than
the same DMA 40-pin/80-wire cable with no hole on it?

Barry Watzman wrote:

> I believe that this is a modification required for use of "cable select"
> instead of master/slave jumpering.
>
>
> lcs wrote:
>> On some DMA 40-pin/80-wire cable, there is a hole on one wire at one
>> end of the cable. What's the purpose? Is this a newer design than
>> the same DMA 40-pin/80-wire cable with no hole on it?

Yup. Sometimes it's implemented by pulling the contact out of the connector
on that wire--same result but it's much more difficult to tell by
inspection.

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--John
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