 |
|||
|
|
|||
| ||||||||||
|
|  MIL-D-81347C(AS)
The power supply shall not be damaged by current surges occur-
ring either at power-on (in addition to normally lit lamps, all computer controlled lamps may be lit
at power-on) or normal operation.
3.5.5.3.3.2
Lamp Intensity Control - An intensity control shall be provided
to regulate the voltage applied to all lamps from 2. O-to 5.2 volts. Under no circumstances shall the
voltage applied to any lamp be greater than 5.2 volts.
3.5.5.3.4
Armament/Ordnance Test Panel - The Armament/Ordnance Test
Panel shall be wired in accordance with the logic description. (See 3.5.2.4.4.5. )
3.5.5.3.4.1
Power Supply -
The Armament/Ordnance Test Panel shall con-
tain its own power supply which shall provide the DC
voltages and currents required by all compon-
ents of the panel. In addition, the Armament/Ordnance
Test Panel shall provide 12 volts, regulated,
for relays in the Armament/Ordnance systems. This
12 volts shall not be referenced to any -
. ground
other than that of the DPS.
3.5.5.4
Mechanical Requirements
3.5.5.4.1
General - Mechanical packaging of the equipment described in
is as required to meet an airborne environment. Captive nuts or other equivalent
shall be employed. Military specifications MS-25212 and MS-25213 shall be used
as design guides.
3.5.5.4.2
Physical Constraints
3.5.5.4.2.1
Overlay Panel - An aluminum overlay panel shall be used to
cover the front mounting plate and associated mounting hardware. The Universal Keyset shall have
an overlay panel hinged horizontally along its lower edge. The Pilot Keyset overlay panel shall be
hinged horizontally at the top. The Ordnance Panel shall be hinged vertically at the left-hand side.
The Armament/Ordnance Test Panel shall have no overlay panel. All overlay panel hinges, except
that for the Pilot Keyset, shall be spring-loaded. The hinge shall be hidden from view from the
front of the panel and spring loaded such that the overlay panel is held normally closed, flush against
the mounting plate. Two captive 1/4" turn fasteners, per MIL-F-5591, will lock the overlay panel
to the mounting plate in its closed position. A latching arrangement between the overlay and the
mounting plate shall be used to lock the overlay panel in the open position. The latch shall limit the
total swing of the overlay panel to approximately 90 from its fully closed to its fully open position.
The overlay panel shall contain no mounting hardware other than the aforementioned hinge, latch
assembly, and captive fasteners. All rivets shall be countersunk and filled and the external appear-
ance of this panel shall be defect-free and flush, after painting, with the exception of the two 1/4"
turn fasteners.
3.5.5.4.2.1.1
Finish - The Overlay Panel shall be prepared for painting as per
FED-STD-595. Primer required shall conform to MIL-P-23377, or with other approved primer
material. The front face and edges of the overlay panel for the Universal Keyset and Ordnance Panel
shall be finished with dark gull gray color No. 36231. The front face and edges of the overlay panel
for the Pilot Keyset shall be finished with lusterless black color no. 37038.
3.5.5.4.2.2
Front Mounting Plate - All switch and/or indicator housings
shall be positively secured to the mounting plate. The switch/indicator light capsules or projection-
type readouts containing the lamps and lens assemblies shall be removable from, and installable into,
their respective housing from the front of the mounting plate without the use of any tools. A dimmer
control on the mounting plate shall be used to control lamp intensity from the front of the overlay
panel.
The mounting plate with all its wired associated switches, indi-
cators, connectors and power supply shall be hard mounted. It shall be physically separable from
the structural framework of the Keysets and attached thereto with countersunk flat screws.
3.5.5.4.2.2.1
Finish - The mounting plate shall be prepared for painting as per
FE D-STD-595. Primer required shall conform to MIL-P-23377, or with other approved primer
314
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals