©
National Instruments Corporation
7
SCC-CI20 Current Input Module User Guide
Power Requirement
Analog power ......................................... 100 mW max
+
15 V .............................................. 3.2 mA max
–15 V............................................... 3.2 mA max
Digital power (
+
5 V).............................. 0.0 mW
Operating voltage range
+
15 V
.............................................. ±
10%
–15 V
............................................... ±
10%
Physical
Dimensions............................................. 8.89 cm
×
2.92 cm
×
1.85 cm
(3.50 in.
×
1.15 in.
×
0.73 in.)
I/O connectors ........................................ One 20-pin right-angle
male connector,
one 4-pin screw terminal
Wire gauge range ................................... 28 to 16 AWG
Maximum Working Voltage
Maximum working voltage refers to the signal voltage (
I
×
249
Ω
) plus the
common-mode voltage.
Channel-to-earth
..................................... ±
15 V, Installation Category I
Channel-to-channel
................................ ±
15 V, Installation Category I
Environmental
Operating temperature............................ 0 to 50 °C
Storage temperature ............................... –20 to 70 °C
Humidity ................................................ 10 to 90% RH, noncondensing
Maximum altitude .................................. 2,000 m
Pollution Degree (indoor use only) ........ 2