9
As for the command from RS-232C, only remote ON command is acceptable.
When MDS receives a command other than remote ON, it sends back a message
means impossible execution.
5-4
Summary
To control MDS with RS-232C, it is necessary to send remote ON command after turn-
ing on the power to enter remote ON mode.
MDS does not accept an input other than the one from RS-232C during remote mode.