IFR FM/AM-1200A

IFR FM/AM-1200A

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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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