1.3
IMPORTANT SAFETY INFORMATION
• The Front Panel power switches are secondary only; they do not disconnect the AVM 20 from the
AC power line. Line voltage is switched off through the rear panel power switch.
• The following safety instructions must be observed whenever the AVM 20 is operated, moved, or
serviced. Failing to comply with any of these instructions or with any precaution or warning
contained in this Operating Manual is in direct violation of the standards of design, manufacture,
and intended use of the equipment.
• Neither Anthem, Sonic Frontiers International, our agents, or any related party assume any liability
whatsoever for the user’s failure to comply with any or all of these requirements.
1.3.1 BEFORE OPERATING YOUR AVM 20
• Do not connect power to the AVM 20 if there are signs of damage to any part of its exterior surface.
• Situate the AVM 20 away from heat sources such as radiators, heat registers, stoves, or other any
appliances (including power amplifiers) that produce heat.
• Allow four inches (or more) of unobstructed air space above the ventilation slots in the top cover of
the AVM 20. Do not obstruct bottom vents by removing the rubber feet or operating the AVM 20
directly on a carpet, sofa, or similar surface.
• Do not place the AVM 20 in a bookcase or component rack without adequate ventilation.
• Install the AVM 20 in a stable location. Do not mount to a wall or from a ceiling.
• Do not use the AVM 20 near water or a wet/damp environment. Do not expose to rain or moisture.
1.3.2 OUTDOOR ANTENNA GROUNDING
• If an outside antenna or cable system is connected to the AVM 20, the antenna or cable system
must be grounded to provide some protection against voltage surges and built-up static charges.
The following diagram contains requirements according to the National Electrical Code:
1. INTRODUCTION
continued …
2
Ground Clamp
Electric
Service
Equipment
Antenna Lead-In Wire
Antenna Discharge Unit
(NEC Section 810-20)
Grounding Conductors
(NEC Section 810-21)
Ground Clamps
Power Service Grounding
Electrode System
(NEC Art. 250, Part H)
NEC: NATIONAL ELECTRICAL CODE