Ascii Control Command - Prestel FM-42H2A User Manual

8. ASCII control command

The Matrix also supports ASCII control. You need to a RS-232 phoenix conn-
ector male head to RS-232 female head with DB9 serial cable and a RS-232
male head with DB9 to USB male head serial cable. The phoenix connector
male head is connected the RS-232 port of the Matrix, and the USB head of
the serial cable is connected a PC. Open any of a Serial Command tool on
PC such as "Docklight" to send command to control the Matrix. Please see the
following connection diagram.
CONTROL
Tx Rx
LAN RS232
Gound
3-pin Phoenix Connector
Important:
1. All messages sent to the Matrix must be terminated with an exclamation
mark (!). Any carriage return that is present after the end of the
command will be ignored.
2. All spaces shown in the commands are required.
3. All response messages are terminated by a CR/LF sequence.
4. When all four inputs are requested by the same command, the
response will report each input on a separate line.
5. When both outputs are requested by the same command, the response
will report each output on a separate line.
IR IN
TX
RX
Figure 1: 3-pin phoenix connector to USB
PC
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RS-232
RS-232 to USB cable