User Guide

8
Cisco AS5850 Universal Gateway Regulatory Compliance and Safety Information
OL-10265-01
Safety Guidelines
• A 60-ampere DC circuit breaker is recommended for the input DC power source. This circuit
breaker should protect against short-circuit and overcurrent faults in accordance with United States
National Electrical Code NFPA 70 (United States), Canadian Electrical Code, part I, C22.1
(Canada), and IEC 364 (other countries).
• Only a DC power source that complies with the safety extra-low voltage (SELV) requirements in
UL1950, CSA 950, EN 60950, and IEC950 can be connected to the DC-input power supply.
• A readily accessible disconnect device must be incorporated in the fixed wiring.
• This unit is to be installed in a restricted access area in accordance with articles 110-16, 110-17, and
110-18 of the National Electric Code, ANSI/NFPA 70, and IEC 950.
Telephone Wiring Guidelines
The following guidelines are recommended when working with any equipment that is connected to
telephone wiring or to other network cabling:
• Never install telephone wiring during a lightning storm.
• Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations.
• Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
• Always use caution when installing or modifying telephone lines.
If you do not know how to safely install a system component correctly in a Cisco AS5850, contact a
qualified telecommunications engineer.
Lifting Safety
A fully configured dial shelf weighs approximately 278 lb (126.1 kg). The chassis is not intended to be
moved frequently. Before you install the dial shelf, ensure that your site is properly prepared so that you
can avoid having to move the chassis to accommodate power sources and network connections. (See the
Cisco AS5850 Universal Gateway Hardware Installation Guide for site requirement guidelines.)
Note If you plan to install the chassis without using a forklift, you must first remove the blower assembly,
PEMs, and cards from the chassis, and have someone assist you with the installation.
Whenever you lift any heavy components manually, follow these guidelines:
• Always have a second person available to help lift the component; never lift the component alone.
• Ensure that your footing is solid and balance the weight of the object between your feet.
• Lift the chassis slowly; never move suddenly or twist your body as you lift.
• Keep your back straight and lift with your legs, not your back. If you must bend down to lift the
assembly, bend at the knees, not at the waist, to reduce the strain on your lower back muscles.
Note Consider the total weight of the system to be lifted, and calculate at least one person for every 60 lb of
weight.