Differences Between the SH-100-100 Cable and the SH-100-100F Cable

Updated May 31, 2018

Reported In

Hardware

  • SH100M-100M Flex Cable
  • SH100M-100M Cable

Issue Details

I am trying to connect my devices with the SH100-100 cable, but pins 1 and 2 are shorted. I am not able to use the DIO pins on several devices or the counter of the NI 6624. Should I use the SH-100-100-F cable instead?

Solution

The difference between the SH-100-100 and the SH-100-100-F is whether or not pins 1 and 2 are shorted. 

The SH-100-100 cables have pins 1 and 2 shorted to increase the noise reduction. This cable is primarily used with analog signals and comes in 1m, 2m, 5m, and 10m lengths.

The SH-100-100-F cables do not have pins 1 and 2 shorted. This cable is used for digital input output (DIO) and timing input output (TIO). The SH-100-100-F only comes in 2m long lengths because if it were longer the signal could degrade giving false readings due to the lack of shielding.

Additional Information

Picking the correct cable for the application is crucial. For example, using the SH-100-100 cable with a PXI-6624 would prevent users from using Counter 0 for applications that require signals to be connected to the source (such as edge counting) since pins 1 and 2 are used as CTR0 SRC+ and SRC- respectively.

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