3.1 Before Installation
4.Use
Use
5.Unplug the system from its power source when wiring, and plug the system back in only after all wiring is completed.
6.
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 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 "3.2.14 Surge Protector Installation".
Installation Manual
47