012-526-B2 Rev C
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5.6.2.2
Programming the Digital Input
The digital input channels can be programmed for “active high” or “active low.” Active high
indicates “alarm on the presence of a ground signal” and active low indicates “alarm on the
removal of a ground signal.” See CXC Software manual for detailed instruction on
programming.
Voltage Range (VDC)
Voltage Level (VDC)
Considered As “0” (Off)
Voltage Level (VDC)
Considered As “1” (On)
0—60
(system voltage setting)
0—3
9—60
Table B–Voltage level definitions for digital inputs
5.6.3
Analog Inputs for CXCI
CAUTION: Ensure the correct polarity is used for all input cable terminations.
The analog input channels are used to monitor various types of electrical signals.
5.6.3.1
Voltage
Voltage Input #1 (load voltage per CXC software) terminals (V1) on the shelf provide
connections to an optional secondary voltage input.
Voltage Input #2 (battery voltage per CXC software) is wired internally (V2) to the output voltage
of the shelf. This is used as the reference for system alarming (such as high voltage) and
control (such as LVD).
5.6.3.2
Temperature Sensor
Temperature Probe input channels (T1 and T2) provide connections for up to two temperature
sensors. A voltage is supplied to these terminals for sensor measurements.
5.6.3.3
Current
Current Input #1 (load current per CXC software) is wired externally to a system current shunt
(100A/50mV) in the negative lead.
