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|  MIL-D-81347C(AS)
Output Word Formats - The output word formats are shown in
3.5.1.4.7.4.1.1
Figures 37 through 40. Detailed descriptions are given in the following paragraphs.
3.5.1.4.7.4.1.1,1
Receiver/Processor Select (See Figure 37) - This word, received
from the DOM, provides control data relative to the processor channel to be switched and the RF re-
ceiver to be applied to that processor channel.
(1) Bit 11- Interrogate bit and for this word is always set to O.
(2) Bits 10 through 6- identify the processor channel to be
switched. only octal codes 00 through 23 are legal for these bit positions. These codes correspond
to processors decimal 0 through 19 respectively.
(3) Bits 5 through 0 - identify the RF channel applied to the pro-
cessor. Only BCD codes 01 through 31 are legal for these bit positions. These BCD codes correspond
to receivers decimal 1 through 31 respectively.
Upon receipt of octal code 23, an RF request shall be sent to the
LOD section of the AN/ARR-72 receiver, indicating that RF level data is being requested.
Mode Select (Auto/Manual) (See Figure 38) - This word, received
3.5.1.4.7.4.1.1.2
from the DOM, provides control data relative to the Mode of operation, either Auto or Manual, for 10
pairs of processors.
(1) Bit 11 -Interrogate bit and for this word is always set to 0.
(2) Bits 10 through 6- Identify the groups of processor pairs
to be mode controlled. There are two groups of five processor pairs. Only octal codes 24 and 25 are
legal for these bit positions. Octal code 24 identifies processor pair group 1. Octal code 25 identifies
processor pair group 2.
(3) Bit 5- Not used in this word to convey data and is designated
as spare.
(4) Bits 4 through 0 - Provide, by master bit, control data con-
cerning the mode (Auto or Manual) for each of processor pairs 1 through 10. A bit set to logical "O"
dictates the Auto mode and a bit set to logical" 1" dictates the Manual mode. If bits 10 through 6 equal
octal 24, then bit 4 corresponds to pair 9 and bits 3 through 0 correspond to pairs 4 through 1 respec -
tively. If bits 10 through 6 equal octal 25, then bit 4 corresponds to pair 10 and bits 3 through O cor-
respond to pairs 8 through 5 respectively. Mode control data is provided for all processor pairs in a
group at one time.
Processor/Receiver Status Request (See Figure 39) - This word,
3.5.1.4.7.4.1.1.3
from the DOM, is used to request information concerning the receiver channel that is applied to various
processor charnels.
(1) Bit 11- Interrogate bit and for this word is always set to 1.
(2) Bits 10 through 6- Define the processor channel of interest.
Only octal codes 00 through 23 are legal for these bit positions. These octal codes correspond to pro-
cessors decimal 0 through 19 respectively.
(3) Bits 5 through 0 - not used in this word and are designated as
spare.
Mode Status Request (See Figure 40) - This word, from the DOM,
3.5.1.4.7.4.1.1.4
is used to request information concerning the mode of operation of processor channel pairs.
( 1 ) Bit 11- Interrogate bit and for this word is always set to 1.
72
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