NB2800
User Manual for NRSW version 4.5.0.100
Digital Inputs and Outputs (Option 2D)
The isolated input and output ports have the following specification in common:
Feature Specification
Isolation to enclosure/GND 1’500 VDC
Max. cable length 30 m
Cable shield not required
Connector type RJ45
Table 3.35.: Common Digital I/O Specification
The Digital Input signal have the following specification:
Feature Specification
Number of ports 2
Max. input voltage 60 VDC
Max. input current 2 mA
Reverse polarity protection Yes
Min. voltage for Level 1 (set) 7.2 VDC
Max. voltage for level 0 (not set) 5.0 VDC
Table 3.36.: Isolated Digital Input Specification
Note: A negative input voltage is not recognized.
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