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2.1 Before Installing
Installation Manual 23
4. Use 2-pair telephone cables when connecting Panasonic proprietary telephones (PTs).
Use 1-pair telephone cables when connecting single line telephones (SLTs), data terminals,
answering machines, computers, voice processing systems, etc.
5. Unplug the PBX from its power source when wiring, and plug the PBX back in only after all wiring
is completed.
6. Mis-wiring may cause the PBX to operate improperly. Refer to Section 2, "Installation" when
wiring the PBX.
7. If an extension does not operate properly, disconnect the telephone from the extension line and
connect it again, or turn off the PBX using the power switch then turn it on again.
8. For safety purposes this unit is equipped with a grounded plug. If you do not have a grounded
outlet, please have one installed. Do not bypass this safety feature by tampering with the plug.
9. Use twisted pair cable for outside (CO) line connection.
10. Outside (CO) lines should be installed with surge protectors. For details, refer to "2.4.1
Connecting Outside (CO) Lines", "2.2.7 Installing Surge Protector".
11. To assure good quality telephone connection, it is recommended new and modifications to
existing installation of customer premise wiring shall use solid twisted pair copper conductors
with minimum 24 gauge that comply with the electrical specifications for Category 3 wiring as
detailed in ANSI/EIA/TIA-570A Building Wiring Standards.
WARNING
Static-sensitive devices are used in this PBX. To protect printed circuit boards
from static electricity, do not touch the connectors indicated below. To discharge
static electricity from your body, touch ground or wear a grounding strap.
Side View
Warning:Static-sensitive connectors