User manual

Custom Cabling and Optional

Connectors

This appendix describes the various cabling and connector options for the

NI 6034E/6035E/6036E device.

Custom Cabling

NI offers cables and accessories for you to prototype your application or to

use if you frequently change device interconnections.

If you want to develop your own cable, however, adhere to the following

guidelines for best results:

• For analog input signals, use shielded twisted-pair wires for each

analog input pair for differential inputs. Tie the shield for each signal

pair to the ground reference at the source.

• Route the analog lines separately from the digital lines.

• When using a cable shield, use separate shields for the analog and

digital halves of the cable. Failure to do so results in noise coupling

into the analog signals from transient digital signals.

Mating connectors and a backshell kit for making custom 68-pin cables are

available from NI.

The parts in the following list are recommended for connectors that mate to

the I/O connector on the NI 6034E/6035E/6036E device:

• Honda 68-position, solder cup, female connector

• Honda backshell

Optional Connectors

Figure B-1 shows the pin assignments for the 68-pin E Series connector.

This connector is available when you use the SH6868 or R6868 cable

assemblies.

UM.book Page 1 Monday, May 14, 2001 10:32 AM