Did Requirements; Tl Requirements; Environmental Requirements - Panasonic DBS 40 Installation Manual

Section 300~Installation

DID Requirements

Enviro nm e nta l Re q uire m e nts
DBS-70-300
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0909) for repair/warranty information. The telephone company may ask you to
disconnect this equipment from the network until the problem has been corrected.
Allowing this equipment to be operated in a manner that does not provide for
proper answer supervision is a violation of Part 68 of the FCC Rules. Proper
answer supervision occurs if this equipment returns answer supervision to the
PSTN when DID calls are:
the CPE user
This device must only be connected to the Tl network connected behind an
FCC Part 68 registered channel service unit. Direct connection is not allowed.
Temperature: The environment should be free from excessive temperatures in
order to avoid component damage. Room temperatures should be 32 to 104" F
(0 40" 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 ranges
should be 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 10 ft. (3 m) 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.
DBS Manual - Revised 4/3/96
Chapter 1. Requirements
l - 5