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Pilot Keyset/CRT Tray/Ordnance Panel Logic |
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|  MIL-D-81347C(AS)
3.5.1.4.5
Pilot Keyset/CRT Tray/Ordnance Panel Logic
3.5.1.4.5.1
Functional Description - The name is derived from the use of
three logically identical subunits to interface the three devices (Pilot Keyset, CRT Tray, Ordnance
Panel). The Pilot Keyset and Pilot Keyset Logic permit the Pilot to:
(1) Control the presentation of information on the Pilot CRT
Display
(2) Enter navigation stabilization information into the computer
(3) Drop Smokes via the computer and DPS
(4) Enter information on visual contacts
(5) Drop Weapons via the computer and DPS
The CRT Tray and CRT Tray Logic permit the Sensor Station 3
operator to control the presentation of sensor and computer data on the CRT Display and to enter sensor
information into the computer program.
The Ordnance Panel and Ordnance Panel Logic enable the com-
puter program to transmit commands to the Ordnance Operator. Illustrations of the Pilot Keyset and
Ordnance Panel front panels are shown in Figures 17 and 18. Figures 19, 20 and 21 are functional flow
diagrams of the Pilot Keyset, CRT Tray and Ordnance Panel Logic Subunits.
Operation of Pilot Keyset and Pilot Keyset Logic in Conjunction
3,5. 1.4.5.1.1
With Computer Program - The switches on the Pilot Keyset may be divided into two categories of
operation.
(1) Monofunction Switches - Switches 1 through 23 and 33 through
35 are termed Monofunction switches. The computer may illuminate a colored background on each of
Monofunction switches 1 through 16. The operation of these switches is similar to the operation of the
Monofunction switches on a Universal Keyset.
(2) Keyboard - Switches 23 through 31 represent numerics 1 to 9
respectively and switch 32 represents O. The operation of the keyboard is similar to the operation of
the keyboard on a Universal Keyset. The only difference is that the three digit number to be processed
by the computer program is displayed on the CRT Display and not on PRO's for verification by the
operator.
Operation of Ordnance Panel and Ordnance Panel Logic in Con-
3.5. 1.4.5.1.2
junction With Computer Program
(1) Switches - The operation of the three switches on the Ordnance
Panel is similar to the operation of Monofunction switches on a Universal Keyset.
(2) Projection Readout Devices - Two of the PRO's on the Panel
are used to indicate the bin associated with the sonobuoy; the other two PRO'S indicate the chute into
which, or in which, the sonobuoy is loaded. The message on each PRO is selected by the computer
program. The program may select a message to be displayed on a PRO by transmitting an output word
to the Ordnance Panel Logic via the DOM. The word will identify the PRO and contain the four bit
message select code. The Ordnance Panel Logic will store the message select code.
(3) Status Readout - The Status Readouts specify whether the
sonobuoy is to be taken from the bin and loaded into the chute or the sonobuoy is in the chute and is to
be unloaded and replaced in the bin. The program may select the Status Readout message to be illu-
minated by transmitting an output word to the Ordnance Panel Logic via the DOM. The word will con-
tain an identifier and the four-bit message selection code.
45
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