Casio EX-830 Service Manual page 69

[ 23 ] COM (RS232C) Test
[Function]
Performs a loop back test on RS232C port.
This test does not generate a printout of the result.
To generate a printout, see "[25] Printing COM(RS232C) Test Result."
Please refer to the illustration in "[24] COM(RS232C) Batch Test" for wiring.
[Operation]
Operation : x
x: Specify the baud rate
0 2400 bps
1 4800 bps
2 9600 bps
3 19200 bps
4 38400 bps
5 57600 bps
6 115200 bps
n: Number of times
0 or no value
A value other than 0 (1 ~ 9) Tests repeat infinitely (press ESC to terminate)
d: Specify COM port
0 Batch
1 COM1
2 COM2
3 COM3
4 COM4
5 COM5
6 COM6
[LCD]
COM1
RTSx=1 → CTSx=1
DTRx=1 → DSRx=1
DTRx=1 → CDx=1
DTRx=1 → CIx=1
RTSx=0 → CTSx=0
DTRx=0 → DSRx=0
DTRx=0 → CDx=0
DTRx=0 → CIx=0
TxD → RxD
END
x: COM number
n 0 4 d ST
To perform a single test
xn04d
OK
OK
OK
OK Displays only COM1
OK Displays only COM1
OK
OK Displays only COM1
OK Displays only COM1
OK
xn04d
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