Auto Sentry® Petro - Installation Guide
31
Communications Wiring
CHAPTER 4: Communications Wiring
This section describes wiring for RS-422 and RS-485 communications.
Installation Requirements
All peripheral equipment connected to the RS-232 ports must be Listed, have an Electronics
Industrial Association (EIA) standard RS-232 comm communications protocol and not be
installed over a hazardous location.
RS-232 communication must not exceed 100 feet.
Communications equipment signal wires must also be run in separate rigid PVC or metal
conduit, separate from any power conduits.
Network Terminations.
Figure 25. stand-alone Auto Sentry Network Terminations
REAR OF RJ-45
CONNECTOR
Pin Signals - Ethernet
1 - Tr
2 - Transmit -
3 - R
6 - Receive -
4,5,7,8 - Not Used
Straight-Through Termination
1 - White/Orange
2 - Orange
3 - White/Green
4 - Blue
5 - White/Blue
6 - Green
7 - White/Brown
8 - Brown
Ethernet Networking
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
WH
IT
E/
ORANGE
ORANGE
WH
IT
E/GREEN
GREEN
BLUE
WH
IT
E/B
LUE
WH
IT
E/B
ROWN
BRO
WN
WH
IT
E/ORANGE
ORANGE
WH
IT
E/GREEN
GREEN
BLUE
WH
IT
E/B
LUE
WH
IT
E/B
ROWN
BRO
WN
CAT 6 SHIELDED
NETWORK CABLE
REAR OF RJ-45
CONNECTOR
PLUGGED INTO
NETWORK ROUTER
PLUGGED INTO NETWORK
SWITCH PORT INSIDE
AUTO SENTRY PETRO