Environmental Requirements; T1 Requirements - Panasonic DBS 576 Technical Manual

Chapter 1 - Requirements

T1 Requirements

This device must only be connected to the T1 network connected behind an FCC
Part 68 registered channel service unit. Direct connection is not allowed.

Environmental Requirements

Temperature: The environment should be free from excessive temperatures in order
to avoid component damage. Room temperatures should be 32 ° to 104
C).
Humidity: The environment should be free from excessive humidity, which may
rust metallic parts and degrade performance. Do not install the system where
humidity could condense on its surfaces. Relative humidity should range between 30
and 90 percent.
Ventilation: Adequate ventilation must be provided to allow upward air circulation
through the cabinet grille.
Gas and airborne particles: To avoid corrosion or oxidation of electrical contacts,
the environment should be free from airborne particles and corrosive gas.
Electrical noise: The environment should be free from excessive electrical noise,
which could disturb the operation of digital circuits. The system should be located at
least 10ft. (3m) away from welders, dimmers, or other high-current machines.
Phones connected to the system should not be located near fluorescent lamps, air
conditioners, washing machines, TVs, or radios.
Vibration: The environment should be free from excessive vibration, which could
loosen components.
Water exposure: Because the DBS 576 is an electrical device, exposure to water is
dangerous. Do not place anything containing water on the system. Do not install
under overhead plumbing, sprinkler system valves, or in areas that are susceptible to
flooding.
Lighting: Sufficient lighting is required for testing and maintenance.
Lightning protection/grounding: The system must be properly grounded to protect
it from lightning damage.
• Supplemental and independent equipment grounding conductors are to be
• One of the equipment grounding conductors must be a wire that is as thick or
1-4
installed between the system and the wiring system ground.
thicker than the ungrounded branch-circuit supply conductors. The equipment
grounding conductor is to be installed as part of the circuit that supplies the
system and is to be connected to a ground terminal at the service equipment. Bare,
covered, or insulated grounding conductors should have a continuous outer finish
that is either green or green with one or more yellow stripes. The equipment
grounding conductor should be connected to a ground terminal at the service
equipment.
DBS 576 (USA), issued 6/2/98
Section 300-Installation
F (0 to 40
° ° °
576-13-300