Third party control solutions

RS232

There is no RS232 control functionality with the Linn DS products.
The RS232 sockets on the Linn DS back panel are to allow the Linn DS to control other Linn products, not the other way around.

IR control

Linn products can be controlled by Philips RC5 command codes.

These are standard pre-amplifer (0x10), CD (0x14) & DVD (0x19) commands
They are listed here

The Linn DSM external inputs are selected by 3off discrete codes. Details are listed here

UPnP ethernet control

By default the Linn DS/DSM is controlled by UPnP.
This can work as a standard UPnPAv device or as a Playlist device. Software such as Device Spy can assist with the commands and the format of these commands.

TELNET Ethernet control with LPEC protocol

This can be a simple way to control the Linn DS/DSM using AMX/Crestron etc.
All that is required is a TELNET port open to the Linn DS. This will allow you to control and get feedback as if you were controlling the LInn DS/DSM using UPnP.

Check LPEC for information