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|  MIL-C-64025(AR)
The SENDER shall generate
3.9.1-9.3 Tuning sequence control.
tuning cent-rol signals during the tuning sequence as specified by
Figure 7 when tested per 4.5.7.28.1.
d i s p l a y . After the tuning sequence has
3.9.19.4 T r a n s m i t
completed, the SENDER shall display "XMIT TUNE = m" where m is an
integer from O to 9 as specified below when tested per 4.5.7.28.2.
Lowest Voltage
Tune Number
At A2-E58 (VREFL)
m
As a Percentage of A2-E44 (+5VDC)
During Tune Sequence
9
1.3
+ 1.3
4.9
+ 1.7
8
9.4
+ 2.3
7
6
13.9
+ 1.7
19.0
+ 2.9
5
23.5
+ 1.1
4
26.8
+ 1.7
3
34.5
+ 5.4
2
52.5
+ 12.1
1
82.5
+ 17.4
0
3.9.19.5 Command output sequence. A biphase message, as
specified by Drawing 9333026 for the field set data of the current
group, shall be generated at A2-E46 (SEROUT) after the SENDER has
completed the tuning sequence when tested per 4.5.7.28.3, 4.5.7.29,
and 4.5.7.30.
3.9.19.6 Group status update.
When the biphase transmission has
completed, the group status shall be updated as specified by 3.9.17.1
and 3.9.17.4 when tested per 4.5.7.28.4, 4.5.7.29 and 4.5.7.30.
3.9.20 Passive internal terminations.
The following signals
shall have passive internal terminations when tested per 4.5.7.2
SIGNAL
VALUE
CONNECTED
TO
A2-E25 (SEND)
47K + 5%
GND
A2-E28 (S.C.S.)
47K + 5%
+5VDC
A2-E32 (XMIT)
47K + 5%
+5VDC
A2-E52 (Col 1)
47K + 5%
GND
A2-E53 (Col 2)
47K + 5%
GND
A2-E54 (Col 3)
47K + 5%
GND
A2-E55 (Col 4)
47K + 5%
GND
3.1O Low temperature operation. The Remote Control Unit shall
meet the performance characteristics specified in 3.6 at minus 35
(+0/-5) degrees F when tested as specified in 4.5.3.
20
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