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The CAS44 supports RS-232 communication
with various third party automation systems or
PC for programming and firmware updates of
the controller. The RS-232 com port is located
on the back of the CAS44 and uses a DB-9
cable connection.
For firmware updates, be sure the CPU Update
switch next to the the RS232 interface is set in
the “Run” position.
The current firmware version of the CAS44 is
found using the KPL keypad’s Setup menu (refer
to the Reference section of this manual).
For RS-232 protocol, firmware updates and the
backup PC application, see the Document
Center at
www.russound.com.
Look for the
Technical Documents under Multi-source/Multi-
room products.
INSTALLER
MAKING CONNECTIONS
RS-232 Interface
INTERFACE
DB9 Cable