Digi CM User's Guide download pdf (Page 194)

Safety

194 Chapter 20

Environmental Considerations and Cautions

The following is a list of environmental considerations that will ensure safe and

efficient operation of the Digi CM unit:

• Do not position the Digi CM unit near high-powered radio transmitters or

electrical equipment, such as electrical motors or air conditioners.

Interference from electrical equipment can cause intermittent failures.

• Avoid exceeding the maximum cabling distances discussed in the online

cable guide.

• Do not install the Digi CM unit in areas where condensation, water, or other

liquids may be present. These may cause safety hazards and equipment

failure.

For DC powered equipment:

• Install equipment in Restricted Access Areas only (dedicated equipment

rooms/closets) in accordance with Articles 110-16, 110-17, and 110-18 of

the National Electrical Code, ANSI/NFPA 70.

• Connect equipment to a DC supply source (reliably earthed) that is

electrically isolated from the AC source.

• Directly connect the equipment chassis to the DC supply system grounding

electrode conductor or a bonding jumper from a grounding terminal bar (or

bus) that is connected to the DC supply system grounding electrode

conductor.

• Contain equipment that has a connection between the grounded conductor

of the same DC supply circuit, the grounding conductor, and also the point

of grounding of the DC system in the same immediate area. Do not ground

the equipment elsewhere.

• Locate the DC supply source within the same premises as the equipment.

• Route away and secure all DC input wiring from sharp edges to prevent

chaffing as well as provide strain relief.

• Provide a readily accessible disconnect device and protective device a

fixed wiring for a DC power supply suitable for the specified rated voltage

and current. Disconnect and protective devices to be rated 2A Amps

maximum.

Note: The Digi CM unit is intended to connect to networking devices. Do not attempt

connecting to a telephone line.

Safety Instructions

CAUTION: Do not operate the Digi CM unit with the cover removed.

• To avoid shorting out the Digi CM unit when disconnecting the network

cable, first unplug the cable from the equipment and then from the network

jack. When reconnecting a network cable to the equipment, first plug the

cable into the network jack and then into the equipment.

• To help prevent electric shock, plug the Digi CM unit into a properly

grounded power source. The cable is equipped with 3-prong plug to help

ensure proper grounding. Do not use adapter plugs or remove the

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