What are the TWO red SCHLAGE flashes on an AD400?

PIM400-485 and AD400

Two red SCHLAGE LED flashes indicates the AD400, PIM400-485 and ACP all have operational communication, and the ACP denied access with a RS-485 command. With a PIM400-485 two red flashes indicates all communication, RS-485 and RF, are good.

 

PIM400-TD2 and AD400

Two red flashes indicates the AD400, PIM400-TD2 has radio RF communication; but the AD400 did not get a strike, GO, relay closure from the ACP. With a PIM400-TD2 TWO red flashes indicates the RF communication LINK is good the ACP status and ACP COM is not determined.

With TWO red flashes we can't tell if the ACP is operational because the only access granted or access denied communication from the panel is the ACP GO/Strike relay closure. A no ACP reply is understood as a two flash RED access denied with a PIM400-TD2.

 

 

ONE red flash,

One red flash indicates RF COM loss, the AD400 radio did not get an answer from the PIM400-485 radio or the PIM400-TD2 radio.

The PIM400-485 will turn off it's radio if the "ACP Timeout" has expired with no ACP (RSI RS-485) communication. One red flash can mean either the loss of RF COM or the loss of ACP COM with the RSI RS-485 communication to PIM400-485.

With a PIM400-TD2 the interface to the ACP is just a Strike/Go relay monitor, so there is no loss of ACP detection. A ONE red flash on a AD400 linked to a PIM400-TD2 means RF communication is lost between the AD400 and PIM400-TD2. You can test by shorting the PIM400-TD2 "Strike Input" pins to force an AD400 unlock.

 


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