Max distance for QEL and power supply

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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...
The PIB300/PIB301 should be located as close as possible to the Access Control Panel.  Do not exceed 500 feet.
Wiring distance from the PIB300/301 to the AD300/301 locksets may be up to 1000 feet (18AWG) for Power and up to 4000 feet (24AWG) for the RS485 data lines.
See the User Guide instructions in the links below
Use #18 gauge wire up to 200 feet maximum distance from PS900 x 900-2Q power supply to the QEL exit device. The new QEL+ no longer requires the 900-2Q board but still needs a different option board...
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...
Use the PS902-2RS power supply with LCN auto operator on single door, PS904-2RS power supply on double door and PS904/906-2RS-2RS for 2 pair of QELA is required for basic operation with a...