Electrical Considerations - Honeywell HC900 Installation And User Manual

Pre-Installation Planning - Electrical Considerations
3. For crossover cable, arrange wires as shown in the following table. (TX and RX pairs are crossed.)
Cable left end
Left to right
Wire color/pin number
white/orange/1
Orange/2
white/green/3
Blue/4
white/blue/5
Green/6
white/brown/7
Brown/8
4. Crimp an RJ45 connector to each cable end. To ensure reliability do not untwist the pairs any more than
necessary to complete the crimp connection. Use care to ensure that the cable drain wire is securely
connected to the shield of the RJ45 connector when the cable is crimped. Reference the
manufacturer's instructions.

Electrical Considerations

All racks should be mounted in an appropriate metal enclosure. A diagram that shows recommended
wiring practice for the cabinet enclosure is given in Figure 29 – Cabinet Wiring, Single Chassis, and Figure
30 – Cabinet Wiring, Multiple Chassis. ABS TYPE certification requires protection from the environment
and must be installed in a grounded metal enclosure
Deviations from the installation conditions specified in this manual may invalidate this product's
conformity with Low Voltage and EMC.
Hazardous voltages exist in the equipment enclosure.
•
Identify and avoid contact with voltage sources.
Failure to comply with these instructions could result in death or serious injury.
Controller Grounding
PROTECTIVE BONDING (grounding) of this controller and the enclosure in which it is installed shall be
in accordance with National Electrical Code (ANSI/NFPA 70) and with local electrical codes.
Revision 19
06/14
Crossover cable assembly
10Base-T / 100Base-T
Signal Description
Tx +
Tx -
Rx +
Unused
Unused
Rx -
Unused
Unused
HC900 Process Controller Installation and User Guide
Cable right end
Left to right
Wire color/pin number
white/green/1
Green/2
white/orange/3
Blue/4
white/blue/5
Orange/6
white/brown/7
Brown/8
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