Communication takes place between the 2Q option board and the Von Duprin QEL exit device. If this communication does not occur then the device will not retract. The 900-2Q board is not ...
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...
SD is Special cylinder dogging in the center case of 98/99 rim and vertical rod non fire rated devices and is available with standard, EL, QEL, CX and ALK.
You can not use these options together on the same device per the following reasons:
QEL/EL device retracts the latch bolt of the exit device allowing entry.
CX (Chexit) device locks the p...