SECTION 3 SYSTEM SHUT DOWN3.1 Powering Off the System1. Turn the all KSU(s) power off using the power switch.• If Expansion KSU(s) are installed, turn the power on/off in the order of Expan-sion 2 KSU, Expansion 1 KSU and then Main KSU.• DO NOT power off by disconnecting the AC (or DC for battery backup) power.Always use the Power Switch on the Main/Expansion KSU.• All calls in progress will be cut off when the system is powered off, and if thePower Failure is set, the applicable extension will become operational.• All user's setting (such as Call Forward, Camp-On, etc) will be kept.3.2 Resetting the SystemThe system reset is carried out using the "Power OFF and ON" operation.Figure 3-16 Power Switch LocationISSUE 1.0 SL1100Hardware Manual 3-7
