Installation / 211P0992638 03 Modular ICS 6.0 Installer Guideå ensure that all relevant documentation is left with theperson in charge of the systemå train the Administrator using the Getting Started section inthe Modular ICS 6.0 System Coordinator Guideå for information on upgrading your ICS without addingdigital T1, see Trunk and Station Modules on page 199.Testing the ISDN BRI network connectionBefore you install a Norstar system which uses BRI cards youshould test your connection to the ISDN network.If you are installing a system which connects to the networkusing BRI-ST cards, the network connection must be equippedwith an NT1. See the ISDN chapter and the wiring informationin this chapter for more information about installing an NT1.To avoid electrical shock hazard to personnel orequipment damage, observe the followingprecautions when installing telephone equipment.• Always disconnect telecommunication networkconnectors before disconnecting the AC power plug.• Never connect the central office connectors until youhave connected the power plug.• Never install telephone wiring during a lightningstorm.• Never install telephone jacks in wet locations unlessthe jack is specifically designed for wet locations.• Never touch non-insulated telephone wires orterminals unless the telephone line has beendisconnected at the network interface.• Use caution when modifying or installing telephonelines.
