when are power supply relay boards required?

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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...
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...
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...
Fire alarm contact would tie right into the Von Duprin Chexit device not to the PS914 power supply. There is no requirement to install the fire alarm board.
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...
Product Ordered after 7/10/2012 - Product identified by label on QEL motor You no longer need to use the 900-2Q option board (no longer available) with the PS900 power supplies to ...
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...
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.
Some Access Control Panels are designed with “Supervised” or “Dry contact” requirements for the inputs and have no common ground between the ACP (Access Control Panel) and device at the door. “S...
Schlage offers the “RLBD” to support these supervised or dry contact interface applications. The "RLBD" plugs directly into the PIM400-TD2 or PIB300-TD2 for easy hook-up.  
Please reference this Tehnical Note RLBD SES-20120418 for RLBD setup, use information, hook-up diagrams and some testing suggestions when connecting to a Supervised dry contact Access Contro...
This is a link to the RLBD Installation Instructions.
This RLBD data sheet can also be found at Schlage/Technical Support. RLBD DataSheet
The capabilities of the auto operator and the required operation of the opening will affect the selection of a power supply.
The 900-4RL has two out put for EL devices and signals to the auto operators to open the doors. PS914 power supply is required with 900-4RL option board to operate the EL device and auto operato...
Von Duprin PS914 x 900-4RL supports two EL with two auto operator.