User`s guide

Certifications
Chapter 19 Specifications and Certifications 313
Environmental Considerations and Cautions
To ensure safe and efficient operation of the Digi Passport unit, follow
these guidelines:
• Do not position the Digi Passport 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 Passport 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.
• The Digi Passport unit is intended to connect to networking devices. Do
not attempt connecting to a telephone line.