Installing a Russound unit for a client and we are wanting to control it via RS-232 with the URC KP-4000 and MX-5000. So far we haven't been able to get any commands to work with it. The status light is lighting up on the MRX-1 when we send a command but nothing is working.

Unsure if I have the right commands although it's the right model number in the URC database.

Serial Properties are
Baud Rate: 19200
Data: 8
Parity: None
Stop: 1

This is the settings Russound sent me...

Taken from “Russound_Controllers_Protocol_v1_00_04.pdf”

The following settings must be made to the RS-232 serial COM port used to interface with the
Controllers:
• 19200 baud rate
• 1 Start bit
• 1 Stop bit
• No flow control
• No parity

Any ideas or directions to move forward?