User's Manual

RadioFrame System Method of Procedure GSM/802.11b
Introduction
6 RadioFrame Networks, Inc.
1.3.3 Safety with Electricity
Warning!
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to
telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and
WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ45
connectors; incorrect interconnection can cause equipment damage. Use caution
when connecting cables.
Warning!
Before working on equipment that is connected to power lines, remove jewelry
(including rings, necklaces, and watches). Metal objects will heat up when
connected to power and ground and can cause serious burns or weld the metal
object to the terminals.
Warning!
Hazardous network voltages are present in WAN ports regardless of whether
power to the attached equipment is OFF or ON. To avoid electric shock, use
caution when working near WAN ports. When detaching cables, detach the end
away from the router first.
Warning!
Do not touch the power supply when the power cord is connected. For systems
with a power switch, line voltages are present within the power supply even when
the power switch is off and the power cord is connected. For systems without a
power switch, line voltages are present within the power supply when the power
cord is connected.
1.3.4 Recommendations
1.3.4.1 Safety Recommendations
• Keep tools away from walk areas where you and others could fall over them.
• Wear safety glasses if you are working under any conditions that might be hazardous
to your eyes.
• Do not perform any action that creates a potential hazard to people or makes the
equipment unsafe.
1.3.4.2 Guidelines for Working on Equipment Powered by Electricity
• Locate the emergency power off switch for the room in which you are working. Then,
if an electrical accident occurs, you can act quickly to turn off the power.
• Before installing, removing, or repairing a BCU or ACU, unplug the power cord.
• Disconnect all power before working near power supplies.
• Do not work alone if potentially hazardous conditions exist.
• Never assume that power is disconnected from a circuit. Always check.
• Look carefully for possible hazards in your work area, such as moist floors,
ungrounded extension cables, frayed power cords, and missing safety grounds.