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RS232 PROTOCOL
The
MD-606T
Tuner has an RS-232 port that allows control of the Tuner from a
variety of controllers including Whole-House A/V Distribution and Home
Automation Systems, or any just about any hard-wired device capable of
outputting RS232 commands.
The
MD-606T
Serial Port allows control of all functions including: Power ON/OFF,
Channel Selection, Preset selection, Modes and Direct Numeric Tuning.
The Serial Port on the
MD-606T
uses a female DB9 connector wired in a DTE
configuration. Tx (transmit) = pin 2, Rx (receive) = pin 3, Ground = pin 5.
Communication settings are 9600 baud, 8 bits, no parity, no handshake.
Figure 6: RS-232 Port Pin Out
Baud Rate Parity Data Bits Stop Bits Flow Control
9600 None 8 bits None
Each command must be terminated with a carriage return: <cr>. If an invalid
command is sent, the
MD-606T
will respond with ERR. If a valid command is
sent, the
MD-606T
will respond with information. Every response from the
MD-
606T
is terminated with CR.
The device sends out unsolicited information whenever it is operated. The syntax
is the same as that used for controlling the
MD-606T
. For instance, if someone
turns the Tuner ON, the
MD-606T
will transmit “PWR1” out of the serial port.
The string will be terminated with <cr>.