Where can I get a wire map for the SHC68-68 cable?

[AnalogKid2DigitalMan]

I don't have a direct answer but I highly suspect it is pin to pin wiring (pint 1 to pin 1, pin x to pin x, pin 68 to pin 68).

NI- please confirm

[william23]

Thanks.  But, what I'd really like to know is how the twisted pairs are arranged in the cable for differential measurements.

[50ohmTerminator]

HI William,

I think what you are looking for can be found in the datasheet for the SHC68-68 cable. Click here to open the pdf datasheet. A link to the datasheet can also be found on the product page. I am also pasting the URL below incase you need it.

http://www.ni.com/pdf/products/us/4daqsc212_216.pdf

Have a good one.

Regards
Malay Duggar
Applications Engineer
National Instruments

[AnalogKid2DigitalMan]

SHC68-68

– A low-cost cable for connecting M Series DAQ devices

to 68-pin accessories and signal conditioning systems. It features

individually twisted cable pairs, but does not have shields between

the analog and digital signals. For improved noise rejection, consider

the SHC68-68-EPM.

[Dennis_Knutson]

Actually, I think this might provide more information. I think you can just disregard the shielding wiring.

[william23]

Thanks.  That sort-of helps, but I'm not sure that the twisted pairs are exactly the same for the SHC68-68 cable.  The literature for the SHC68-68 says that there are 34 twisted pairs which means that all of the wiring in the cable is using twisted pairs.  The SHC68-68EP has some single strands and shield lines, so I'd like to know how those are different in the SHC68-68 cable.  I would guess it's just 1-35, 2-36, 3-37, etc., but can anyone confirm that?

Thanks

[Jennifer O]

Hello William,

You are correct, the twisted pairs for the SHC-68-68 are 1-35, 2-36 ... 34-68.

Regards,

Jennifer O.