ApplicationsIDEC SmartRelay Manual 223Lighting system with pulse relayFunction of a lighting system with pulse relay:• Press any pushbutton: The lighting is switched on• Press any of the pushbuttons once again: The lighting isswitched off.Disadvantage: People often forget to switch off the lights.Lighting system with an automatic stairway lighting switchFunction of a lighting system with automatic stairway lightingswitch:• Press any pushbutton: The lighting is switched on• The lights are switched off automatically when the presettime has expired.Disadvantage: The lights can not be switched on for a long-er period of time (e.g. when cleaning the stairway). Theswitch for permanent lighting is usually located on the auto-matic stairway lighting switch and may be difficult or impos-sible to access.8.1.3 Lighting system with IDEC SmartRelayA IDEC SmartRelay system allows you to replace the auto-matic stairway lighting switch or the Current impulse relay.You can also implement both functions (timed off-delay andCurrent impulse relay) in a single unit. What is more, you canincorporate extra functions without making any alterations tothe wiring. Here are some examples:• Current impulse relay with IDEC SmartRelay• Automatic stairway lighting switch with IDEC SmartRelay• Dual-function switch with IDEC SmartRelay- Switch light on- Switch on permanent lighting- Switch light offngineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.ste
