How to disable secured communication between Terminal Server and embedded terminals
Communication between embedded terminals and Terminal Server is provided by default via secured hypertext transfer protocol (https). If we want to have connections between Terminal Server and embedded terminals unsecured, the secured communication must be disabled in both Terminal Server and MFP.
Limitations
Currently, the only supported vendors are FujiXerox and Sharp. The MFPs of other vendors will not work in case when secured communication is disabled. Configuration affects entire Terminal Server and therefore we cannot have both secured and unsecured connections between one Terminal Server and embedded terminals. Solution to this limitation is to use multiple ORSs, where each Terminal Server has different configuration of secured connections, for example, one with disabled secured connections and other ones with enabled. The MFPs of unsupported vendors (e.g. Xerox) then can be connected to the Terminal Server with enabled secured connections.
Configuration
Secured communication in Terminal Server can be disabled in SafeQ web interface via configuration option dsSslEnabled which can be found in System settings under tab Communicator in Expert options view. The default value is set to true (enabled). To disable https connections, set it to false (disabled) and restart Terminal Server. This configuration is global and therefore it affects any Termianl Servers connected to given CML through any ORS.

The other way to disable secured connections is via Terminal Server's configuration file TerminalServer.exe.config which can be found in directory <SafeQ_dir>\terminalserver. Add or modify configuration option dsSslEnabled in appSetting section to value false and restart Terminal Server.
<add key="dsSslEnabled" value="false" />
This configuration option affects only given Terminal Server and therefore it is suitable in case of multiple ORSs, each with different configuration of secured communication.
Note that if we disable secured communication in Terminal Server, it must be disabled also in connected MFP and vice versa.