videogeniX uSwitch, Инструкция по установке и эксплуатации

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uSwitch and uSwitchPro Installation and Operating Manual Page 33
Configurations
Access Control to Electronic Door Strike
The following is a configuration where uSwitch is used to provide access control. When connecting to door strikes a
reverse-bias diode is recommended. In this example, a reverse-bias diode is connected in parallel with the lock to protect
the relay contacts from the inductive kickback that can occur when the lock is switched. A variety of diodes is available
and can be ordered either online or directly from us. (For AC door access control no diode is necessary, for DC powered
devices a 60V p/p diode is recommended).
Driving multiple uSwitch Relays from a single uSwitch GPIO or Virtual Button
In addition to a physical push button driving the local relay on the same uSwitch either that push button or the button
generated on the Control Center page, or a virtual button can be created to command a relay on a remote uSwitch. Once
setup, pushing that button will drive all relays in its configuration as specified by the virtual or physical button. Each
uSwitch can be programmed to drive up to eight separate relays on the network. Additionally, if a relay output is
hardwired into its own, or another uSwitch’s GPIO it can in turn be used to drive an additional 8 relays. By daisy chaining
uSwitches in this manner a single GPIO can drive an unlimited number of relays on other uSwitches.