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Appendices 67
1234 5678
Dry Contacts
0, 5 VDC
Appendix C: EVR1500 Environmental Monitor
Appliance Pinouts
This appendix provides pinouts and signal definitions for the following
EVR1500 environmental monitor appliance connectors: analog sensors (RJ-
45), digital I/O (eight-wire insert), COM1 (RS-232) serial port, Ethernet 10/100
BaseT and VGA display. Figure C.1 shows the digital I/O connections on the
appliance terminal blocks.
Analog Sensor Connectors
RJ-45 Pin Signal Name Description
1 GND Signal ground
2 N/C Not connected
3 N/C Not connected
4 N/C Not connected
5 Vin Voltage input
6 NC Not connected
7 N/C Not connected
8 +12 VDC +12 VDC output
Digital I/O connectors
Each digital I/O requires two connections, as shown in Figure C.1. Digital
inputs (1 to 6) connect to dry contact closures. Digital outputs (7 and 8) provide
Ø or 5 VDC and require ground connection.
Figure C.1: Digital Sensor Connections on Terminal Blocks