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“ when are power supply relay boards required? ”

Resolution: The 900-4R is used with PS900 series power supplies and has four independent outputs and inputs with no time delay. You can use any of these outputs with electrified hardware including EL devices a...:

When would you use the 900-4R option board in a 900 series power supply?

Resolution: The 900-4R is used with PS900 series power supplies. The 900-4R has four independent outputs and inputs with no time delay. You can use any of these outputs with electrified hardware including EL...:

What power supply is required to operate the 6000 series electric strike?

Resolution: Option boards are not required with PS900 series power supplies when using electric strikes. See the list of options below. The PS902 would power up to 5 electric strikes at 24VDC or&n...:

Will the Von Duprin PS902 power supply operate the QEL device?

Resolution: The Von Duprin PS902 power supply will operate the QEL device as long as you also use the 900-2Q board for devices shipped prior to September of 2012. After July of 2012, the 900-2RS boa...:

How many Von Duprin QEL devices can be connected to a power supply?

Resolution: Product Ordered before 7/10/2012 - Product identified by no label on QEL motor. You must use the 900-2Q option board with the PS900 power supplies to operate the QEL devices. The attached ta...:

Does the 9540 Senior Swing need a separate relay board for wiring to electric locks?

Resolution: The Senior Swing control box has a built in (programmable) relay output for connection to a Fail Safe/Fail Secure electric strike/maglock or to an EL Device power supply.:

How do I use an AD-Series Relay Board (RLBD)?

Resolution: This RLBD data sheet can also be found at Schlage/Technical Support. RLBD DataSheet :

What power supply is required for two EL devices and one LCN auto operator?

Resolution: Von Duprin PS914 x 900-4RL supports two EL with two auto operator.:

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“ when are power supply relay boards required? ”

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