SERIAL PORT
SERVSWITCH MULTIVIDEO INSTALLATION AND OPERATIONS MANUAL
29
Serial Port (RS232)
The RS232 serial port on the rear panel is used for sending switching
commands from a stand-alone computer or terminal or to load flash
firmware upgrades to the unit. A serial cable and an RJ to DB9 adapter are
included with the unit. Perform steps 1-3 below to use the serial port.
1. Connect the serial cable to the RS232 serial port on the rear panel and
to the RJ12 connector on the adapter.
2. Connect the DB9 connector on the adapter to the stand-alone computer
or terminals DB9 COM port.
3. Set the computers communication program for:
a. 9600 baud
b. no parity
c. 8 bits
d. 1 stop-bit
Firmware update
The ServSwitch MultiVideo’s flash memory can be updated with the latest
firmware using the RS232 serial port. Updates can be obtained from our
web site. Verify the unit’s program and kernel versions against the current
versions on our web site. To verify the program version, start a text editor
application like notepad, press and release the left control (Ctrl) key, then
press the “I” key and the program version will display.
To update the firmware, first download the latest revision from our web site
and save it to a stand-alone computer that is not connected to the
ServSwitch MultiVideo. Connect the serial cable from the serial port of the
stand-alone computer as described in steps 1-3. There are two methods of
loading the downloaded programs to flash memory.
Method 1 – Using a communication program
1. Press both the - and + switches on the front panel and power on the
ServSwitch MultiVideo. LED 1 will light indicating the unit is ready to
accept the upgrade file at 9600 baud. To use 57600 baud rate, press
the + switch and LED 1 will turn off and LED 4 will light.
2. Run your communication program. Set the baud rate to the correct
rate and put the program in direct connect mode. When the - or +
switch is pressed, you should see the message:
”Waiting for file at 9600 or 57600 baud.”
3. Send the file to the unit using a simple ASCII text file protocol. While
the file is being sent, periods are sent to indicate the file copy
progress. Once the file has been sent, you should see the following
message:
”Receive successful”
”Hit space to program”
Содержание ServSwitch KV0202A
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