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2.1 Before Installation
Installation Manual 39
4. Use 2-pair telephone cables when connecting PTs.
Use 1-pair telephone cables when connecting SLTs, data terminals, answering machines, computers,
Voice Processing Systems, etc.
5. Unplug the system from its power source when wiring, and plug the system back in only after all wiring
is completed.
6. Mis-wiring may cause the Hybrid IP-PBX to operate improperly. Refer to Section 2 "Installation" when
wiring the system.
7. If an extension does not operate properly, disconnect the telephone from the extension line and connect
it again, or turn off the Hybrid IP-PBX using the power switch, then turn it on again.
8. For safety purposes this unit is equipped with an earthed plug. If you do not have an earthed outlet,
please have one installed. Do not bypass this safety feature by tampering with the plug.
9. Use twisted pair cable for trunk connection.
10. Trunks should be installed with surge protectors. For details, refer to "2.2.14 Surge Protector
Installation".