Nextar NP-610X user manual Communications Connections, Requirements

￿The ICS 3-304.81 Safety Recommendations are reproduced by permission of the National Electrical Manufacturers Association from NEMA ICS 3-304

2.3 Communications Connections

The ports as you look at the back of the case, are the ports for connecting to a PLC or some external device (Controller Connectors).

CableDifferent cables are required for various devices.

Requirements

Caution	Restrict cable length to less than 500’ (150m) for RS485/422
	devices and 50’ (15m) for RS232 devices to avoid
	communications problems.
	Shielded cable must be used for long lengths or cables run in
	an electrically noisy environment.
	Do not run cables next to AC power lines or near sources of
	electrical noise.
	Be sure that the cable ends have been inserted all of the way
	into mating connectors and are secure

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