can you add REX signal switch

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Question
Answer
SS, LX, RX
SS
If the RX switch is in the device itself yes. You can not however have both the "E" and "RX" options in the same 996L trim as both the solenoid & switch are mounted in the same place in the trim.
The signal switch(S) will automatically be installed in an EL1490 and EL1590 devices when built at factory. Red, Green, and Black are the wires to the switch and are shown in the 1490 instructio...
The RX monitors the push bar while the LX monitors the latch bolt of the exit device. A SS device has an LX and a key cylinder switch plus an emergency push bar signage.
DS