The Magic RDS 4 can provide an entry point to the RDS network for another device or application, to expand the range of other services broadcast.
If the device provides a data output which is compatible with the RDS encoder command set, use the setup as showed in Help - m4vp.pdf, section 'Data Splitter for RDS Encoders'.
If the device output uses incompatible data format, you still have the option to at least partially control the RDS encoder with it. Appropriate setup is showed in m4vp.pdf, section 'Redirecting to External Text Sources'. Then use the External Text Sources function called 'Text conditions' to send RDS commands, based on the occurrence of keywords or sequences in the text received from the device.
You should consult with the manufacturer of the SAGE Endec device to determine which method is suitable for your case.
The Magic RDS currently accepts input data via following interfaces: serial RS-232, TCP server, TCP client, UDP, HTTP server (GET method), HTTP client, FTP client, Windows file system.