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4-11
BASIC RS-232 OPERATION
This paragraph contains basic instructions for operating the FM/AM-
1200S/A using an RS-232 or GPIB compatible external device.
Using these
instructions, the operator can select any available parameter of the
following FM/AM-1200S/A functions:
DTMF
TONE
OFFSET
RF
IMTS (PULSE'
TONE WAVEFORM
METER
DCS
MODULATION
4-11-1 FM/AM-1200S/A INITIALIZATION
The initial communication between the FM/AM-1200S/A and the external
controller consists of Baud Rate synchronization.
The external
controller can be set to any one of the following Baud Rates:
1 -
300
2 -
6
00
3 - 1200
4 - 2400
5 -
4800
6 -
9600
7 - 19200
Use the following procedure to initialize the FM/AM-1?00S/A for RS-232/
GPIB operation:
STEP
PROCEDURE
------------------------------------------------------------------------
1.
Connect external controller to FM/AM-1200S/A at RS-232/GPIB
Connector (43).
2.
Check FM/ AM-1200S/ A Protocol (Appendix B).
3 •
2ND
~
Press
!!
L:J
corresponding to
on the Keyboard (18), followed by the number
the desired Baud Rate as shown above.
Example:
Set Baud Rate to 4800
Press
i
1!!1
~~~
''SET BAUD RATE
5''
will be displayed on VFD (37).
4.
Type two CR (carriage returns) on external controller.
"RS-232
ENABLED'' should be displayed on VFD (371.
5.
If a computer is available, a program may be used for control.
4-50
05
The following example will work on IBM-compatible types.
Notice
that Baud Rate is 9600 in the example.
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