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(a) Press Digital Interface "Input" to set the 1050 to Listen Only mode.
(b) Prepare the Talking Device for transmitting data to the 1050 and then initiate trans-
mission as appropriate.
The 1 050 is returned from its Listen Only mode by pressing Digital Interface "Input" for
a second time which causes the Digital Interface "Input" LED to extinguish.
4.2.4. Digital Cassette Recorder Type 7400
~-· •h•:ll'f4-~
l"ol<oM...t
I!M<I.JD.u
l>i¥U~
ll..-
'',.I
r--
ll
.HF<6tl~
~~'l
C<lont
t~fl
Slo?li
I l l
Fig. 4.4. Digital Cassette Recorder Type 7 400
If more than
4
front panel set-ups are required, then they can be output over the IEEE
interface of the 1050 and recorded using the Digital Cassette Recorder Type 7400. These
set-ups can be recalled later to set the front panel test parameters.
Procedure for storing front panel set-ups:
1.
Connect the Interface Bus (IEEE-488) of the 1 050 to the Interface Bus (IEC/LP) of
the 7400 using cable AO 0264.
2.
Set the 7 400 Interface Mode to "IEC".
3.
Set the 1 050 Address Switch 2 to "0" for IEEE Format, and Address Switch 3 to "1"
for SR3
=
ETX
A
EOI.
4.
Reset the 1050 by executing Reset 0 and reset the 7400 by pressing System Reset.
5.
Select the Front Panel Set-up "No." to be recorded.
6.
Locate the file to be used for recording the test set-up data (refer to the 7400
Instruction Manual).
7.
Press the Record "Enable" and "Data" keys of the 7400 simultaneously.
8.
Press the Digital Interface "Output" key. The data will be recorded by the 7400
which will stop automatically once the data has been transferred.
9.
Note down the File No. and the set-up characteristics for reference purposes.
The Digital Cassette Recorder can also be used to record dynamic data read out during
a test run. In this case omit steps 8 and 9, and follow the procedure given in section
4.2.2, steps 4 or 5.
31
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