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Difference Between D1/D2/D3/D4 SHC68-C68 Cables

Hardware: Legacy DAQ Devices>>Multifunction DAQ

NI makes several different SHC-C68 cables. What is the difference?

The SHC/SH-68-C68 cables have 4 different varieties, D1, D2, D3 and D4.  It is important to note the connector type and recommended devices.

The D1 is a single shielded cable with female D-type connectors and is recommended for Counter/Timer devices. The D3 has a 100Ω impedance and VHDCI connectors and is recommended for digital data and control (DDC). The D4 is similar to the D3, but only has a single layer of shielding.

The D2 has been discontinued because of a change in one of our suppliers and is no longer available, and has been replaced by the D4. If you still have D2 cables you should be able to use them interchangeably with the D4.

For more detailed specification and product info check the related links below.

SHC68-C68 Cable Comparison
Cable SH68-68-D1 SHC68-C68-D2 SHC68-C68-D3 SHC68-C68-D4
Connector A female 0.050 D-type VHDCI VHDCI VHDCI
Connector B female 0.050 D-type VHDCI VHDCI VHDCI
Shielding Single Single Double Single
Impedance 50Ω 50Ω 100Ω 50Ω
Use Counter/Timer Discontinued DDC High Speed Digital
Recommended For 670x  - 5421, 6585 6536/37, 654x, 655x

For more information on what cable to use with your device see the DAQ Multifunction I/O Cable and Accessory Compatibility page, or the Digital Instrument Cable and Accessory Compatibility page. 

Related Links:
Products and Services: SH68-68-D1
Products and Services: SHC68-C68-D3
Products and Services: SHC68-C68-D4
Documentation: SH68-68-D1 : DAQ Multifunction I/O Cable Guide


Report Date: 12/01/2008
Last Updated: 07/20/2017
Document ID: 4S0EHKZD

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