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322859A-01
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Copyright 2000 National Instruments Corp. All rights reserved.
August 2000
INSTALLATION GUIDE
SCXI -1314 U
NIVERSAL
S
TRAIN
T
ERMINAL
B
LOCK
This guide describes how to install and use the SCXI-1314 terminal block
with your SCXI-1520 module.
Introduction
The SCXI-1314 terminal block is used with the SCXI-1520 universal
strain/bridge module enabling you to conveniently connect strain gauges
through screw terminals. There are 88 screw terminals arranged in eight
groups of 11. Each group corresponds to one of the eight channels available
on the SCXI-1520. (Refer to Figure 2 for a diagram of terminal locations.)
The signal names of the terminals for each channel are listed in Table 1.
Each channel input contains screw terminals that connect to the inputs of
the SCXI-1520, two precision 100 k
Ω
shunt calibration resistors, and a
precision quarter-bridge completion resistor. The SCXI-1520 contains
Table 1.
Signal Names
Signal Name
Condition
P+
Positive excitation signal
P–
Negative excitation signal
S+
Positive input signal
S–
Negative input signal
QTR
Quarter-bridge completion resistor connection
RS+
Positive remote sense signal
RS–
Negative remote sense signal
SCA
(2 terminals)
Shunt calibration A signal
SCB
(2 terminals)
Shunt calibration B signal
™
Содержание SCXI -1314
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