JDS Uniphase RM3 Series, User Manual

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Programming Examples
RS232 Interface Program Example
The following program can be used to connect the Backreflection Meter with an external device
through the RS232 serial interface.
100 CLOSE #1 ' Initialize the RS232C port
110 OPEN "COM1:2400,N,8,2" AS #1
200 PRINT #1,"B";
' Go to Backreflection mode
210 INPUT #1,IN$
220 IF IN$ = "Y" THEN GOTO 250 ' Check if the command was accepted
230 PRINT "WILL NOT DISPLAY BR"
240 STOP
250 FOR I=1 TO 5
' Read and display five BR measurements
260 PRINT #1,"G";
270 INPUT #1,IN$
280 PRINT IN$
290 NEXT I
300 PRINT #1,"A";
' Go to Power mode
310 INPUT #1,IN$
320 IF IN$ = "Y" THEN GOTO 350 ' Check if the command was accepted
330 PRINT "WILL NOT DISPLAY POWER"
340 STOP
350 FOR I=1 TO 5
' Read, display five power measurements
360 PRINT #1,"G";
370 INPUT #1,IN$
380 PRINT IN$
390 NEXT I
400 CLOSE #1
410 END
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