Appendix E SCXI-1121 Cabling
SCXI-1121 User Manual E-6 www.natinst.com
All other pins of the Lab board pinout are not sent to the SCXI-1121 rear
signal connector.

SCXI-1341 and SCXI-1344 Installation

Follow these steps to install the SCXI-1341 or SCXI-1344:
1. Make sure that the computer and the SCXI chassis are turned off.
2. Install the SCXI module in the chassis.
3. Connect one end of the ribbon cable to the adapter board rear
connector. This is the 50-pin connector of the SCXI-1344 cable.
4. Plug the adapter board front connector to the module rear signal
connector. Make sure a corner of the adapter board enters the upper
board guide of the chassis.
5. Screw the rear panel to the threaded strips in the rear of the chassis.
6. For an SCXI-1341, connect the loose end of the ribbon cable to the
Lab-NB, Lab-PC, or Lab-PC+ I/O connector. For an SCXI-1344,
connect the two 26-pin connectors to the Lab-LC according to the
instructions given in the Hardware Installation section of Chapter2,
Configuration and Installation, of the Lab-LC User Manual.
Check the installation.
SCXI-1342 PC-LPM-16 Cable Assembly
The SCXI-1342 PC-LPM-16 cable assembly connects a PC-LPM-16 board
to an SCXI-1121 module. The SCXI-1342 cable assembly consists of two
pieces—an adapter board and a 50-conductor ribbon cable that connects the
PC-LPM-16 board to the adapter board. The adapter board converts the
signals from the PC-LPM-16 I/O connector to a format compatible with the
SCXI-1121 rear signal connector pinout. The adapter board also has an
additional male breakout connector that makes the unmodified PC-LPM-16
signals accessible to an SCXI-1180 feedthrough panel or an SCXI-1181
breadboard module. The adapter board gives the PC-LPM-16 full access to
the digital control lines and analog signals, but the PC-LPM-16 cannot scan
channels in Multiplexed mode. Leave jumper W1 in position A on the
SCXI-1342. The SCXI-1121 does not use jumper W1. TableE-3 lists the
SCXI-1342 pin translations.