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3-2-28. Turn-On Procedure.
When the KY-100 is turned on, tests are automatically
performed to determine the equipment’s operating status.
The results of these tests will be presented on the
display. Also, a Cld START message will be displayed.
a. Cold start turn-on. (Initiated if no traffic encryption
key (TEK) is contained in the KY-100).
(1) Turn on the KY-100 by turning the PRESET
switch to the MAN position.
(2) The KY-100 will initiate a self -test. The display
reads Cld STRT and then PSH INIT.
TM 1-1520-240-10
3-2-25
(3) Connect a fill devise to the KY-100 fill connector
using a fill cable. Select the fill position containing
the valid key and turn it on.
(4) Press the INIT pushbutton (PUSH INIT).
(5) The KY-100 displays KEY 1 01, PASS,
WORKING, LOCKED, READY.
NOTE
If a fill devise is not connected to the KY-100
when the INIT pushbutton is pressed, a dEV
ERR (Devise Error) message will be displayed.
When this occurs, the only available
communication mode will be PT (Plaintext).
(6) If a FAIL message is displayed, notify the
next level of maintenance.
(7) To load additional keys (up to a total of 6),
proceed to Key Loading Section.
b. Normal turn-on.
(1) Set the front panel MODE control to the OFFLINE
position.
(2) Rotate the DSPL and PNL switches clockwise,
out of the OFF detent positions and adjust the
display and panel lighting for comfortable viewing.
(3) Set the PRESET switch to the MAN (manual)
position to apply power to the KY-100 electronics.
Power -on tests will automatically be run when primary
power is applied.-
(4) Upon successful completion of the poweron
tests, the test results should appear in the display. If
PASS is displayed, continue with the turn-on procedures.
However, if a FAIL message appears in the display, notify
the next level of maintenance. If PUSH INIT is displayed,
perform the cold start procedures as described above in
paragraph a.
3-2-29. Key Loading Procedures.
Key loading may be accomplished using a KYX-15,
KYK-13 or a KOI-18. One Key Encryption Key (KEK), up
to six Traffic Encryption Keys (TEKs), and one Emergency
Backup (EB) key can be loaded in the KY-100. A Fill
Cable (ON190191) is required when using one of these
devises. Proceed with the following generic Key Loading
procedures:
a. Place the KY-100 MODE switch in OFFLINE position.
b. If the KY-100 is not on, turn PRESET switch to
MAN position.
c. Connect a fill devise to the KY-100 fill connector.
d. Push the ↑ (up arrow) or → (right arrow) button
until KEY OPS is displayed.
e. Push the INIT button. LOAD KEY will be displayed.
f. Push the INIT button. LOAD N with a flashing N will
be displayed. The flashing N indicates the currently selected
key location.
g. Press the ↑ (up arrow) or → (right arrow) button
until the required location (1, 2, 3, 4, 5, 6, or U) is displayed.
h. Press the INIT button. The entire LOAD N message
will now be flashing.
i. Turn on fill devise and select key to be loaded.
NOTE
DO NOT press the INITIATE pushbutton (or
pull tape through tape reader) on fill devise.
j. Press the INIT button. (When using a KOI-18 pull
tape through tape reader at a steady rate after the terminal
INIT button is pressed). Upon completion of a successful
load, a pass tone will be heard and the display will
momentarily indicate KEY N, where N is the key location
loaded.
k. The display will again show LOAD N with N flashing.
To load additional keys, repeat steps g. through j.
until all desired key locations have been loaded.
l. Turn off and disconnect the fill devise from the
KY-100.
m. Rotate MODE switch out of OFFLINE to exit Key
Load.
3-2-30. Zeroize Procedures.
a. Zeroize ALL keys. This procedure is active even if
primary Power is removed from the KY-100. All key locations
within the KY-100 will be zeroized. Once zeroized,
only PT voice communications are possible until a new
Traffic Encryption Key (TEK) is loaded.
(1) Pull the MODE switch and rotate it to the Z
ALL position. All keys stored in locations 1–6 and U will
be erased.
(2) If the KY-100 is on when this procedure is
performed, ZEROIZED will be displayed, and a tone will
be heard.
(3) If the KY-100 power is on when the MODE
switch is rotated out of Z ALL position, PUSH INIT will be
displayed. Follow the COLD START procedures.
b. Zeroize SPECIFIC key locations.
(1) Place the KY-100 MODE switch to the OFFLINE
position.
(2) If the KY-100 is not on, turn PRESET switch
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