NI 9923

The NI 9923 is a front-mount screw-terminal block for C Series modules with 37-pin D-SUB connectors. It provides a wiring connection accessory rather than a standalone data acquisition module.

ManufacturerNational Instruments

ModelNI 9923

Part Number781503-01

Product Type37-pin D-SUB to screw-terminal connector block

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Product roleC Series front-mount terminal block

Manufacturer part number781503-01

Module-side connection37-pin female D-SUB

Field wiring connection37-position screw terminal

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Overview

Product overview

Key product information and technical features.

The NI 9923 connects field wiring to supported C Series modules through a front-mounted terminal block. Its screw-terminal front end connects to a 37-pin female D-SUB back end.

NI lists the NI 9923 as a recommended front-mount accessory for the 37-pin D-SUB versions of modules including the NI 9205 and NI 9207. Select accessories by the module's actual connector variant, not by model name alone.

Front-mount connection for supported 37-pin D-SUB C Series modules.
Screw-terminal wiring interface.
SH terminal for cable shields.
Strain-relief holes and securing jackscrews.

Verified specifications

Technical data

Verified product specifications.

Back-end connection	37-pin female D-SUB
Front-end connection	37-position female screw terminal
Maximum voltage	30 Vrms / 42 Vpk / 60 VDC
Operating temperature	-40 to 70 °C
Wire size	16–26 AWG copper
Wire strip length	4.5 mm
Maximum screw-terminal torque	0.4 N·m
Weight	82 g
Current limit: pins 9, 10, 19, 28, 29	≤5 A at -40 to 55 °C; ≤4 A at 56 to 70 °C
Current limit: remaining pins	≤1 A at -40 to 55 °C; ≤1 A per channel and ≤16 A aggregate at 56 to 70 °C