16
RS-232 or 422/485 Serial Connector
Connector 6 is a standard serial communication port that allows the connection of
computers, controls or any other device that needs remote communication through a
reliable wireless data channel. The connectivity provided by the port is in real time and
acts as a point to point transmitter.
Pin
Signal
Pin
Signal
2
TX
Out
7
RTS
Out
3
RX
In
8
CTS
In
5
Ground
Ground
RS-232
Pin
Signal
Pin
Signal
2
T+
T+ RS422
7
T-
T- RS422
3
R-
R- RS422
8
R+
R+ RS422
5
Ground
Ground
RS-422
Functionality
Press and hold the yellow button to initiate an external alarm call. Once activated
the yellow LED will turn on.
Once the external call has been placed an additional local intercom connection will
be enabled to allow for communication with all connected audio modules and the
external receiver. The local intercom connection will automatically be disabled when
the external call is hung up.
Once external communication is established the green LED will light up.
Pressing the blue button will enable or disable a local intercom to the machine
room connection only. During this call the green LED will flash slowly and once
the communication is stablished it will stay solid for the duration of the call.
+
Press and hold both the yellow and blue button at the same time to
enable the End of Alarm signal and the device will revert to standby mode.
DAU LED Indicators / Pictograms
The following table describes the operation of the two LEDs (green and yellow) on the
DAU:
Yellow LED
Green LED
Function
Off
Off
End of alarm or Device on standby
On
Off
Alarm started, communication is established
OR End of Alarm
Off
On
Audio module communication established
Flashing
Flashing
Error in last test *