Ericsson TT1222 Betriebsanweisung Seite 29

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Installing the Equipment
2.4.2 FCC
This equipment have been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the Reference Guide, may cause harmful
interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
2.4.3 Connecting to a Public Telecommunication System
Caution!
TT1222 is not constructed for electrical connection directly to any public
telecommunication system. None of the output signals shall be distributed directly
from TT1222 to a public telecommunication system leaving the building without
using some kind of interface in between such as a telecom terminal, switch or
similar unit. Such kind of buffer is required to achieve a protective electrical barrier
between the public telecommunication system and TT1222. This electrical barrier is
required to achieve protection against lightning or faults in nearby electrical
installations.
2.5 AC Supply Voltage and Fusing – Safety Information
2.5.1 AC Power Supply
Warning!
The TT1222 should only be operated from the type of power source indicated on the
marking label. If you are not sure of the type to your business, consult your
appliance dealer or local power company. Do not overload wall outlets and
extension cords as this can result in a risk of fire or electric shock.
The TT1222 is fitted with a wide ranging power supply. It is suitable for supply
voltages of 100 - 240 V AC -10% +6% at 50/60 Hz nominal. It is designed for use in
ambient temperature in the range of 0°C to +50°C. The full technical specification is
given in Annex B, Technical Specification.
Note: There is no user-replaceable fuse in the rear of the unit.
EN/LZT 790 0002/2 R1A
2-7
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