Ericsson EDACS M-RK I, Operator'S Manual, Page: 32 / 76

5. Press the TRN button on the Keyloader. If necessary,
select a different cryptographic key to be transferred
into the radio.
6. Turn the radio on. A beep will indicate that the Key-
loader is connected.
7. Press the EXE button on the Keyloader to transfer the
key. The Keyloader will display "GOOD 1.x TRANS-
FER" where "x" is the selected cryptographic key
number.
8. Disconnect the cable from the radio’s UDC. The radio
will change to the selected group or channel as
indicated in the display.
Key Zero
All cryptographic keys can be zeroed (erased from
radio memory) by pressing the MONITOR/CLEAR button
and while still pressing this button, press and hold the
OPTION button. Press both buttons for 2 seconds. A
series of beeps will begin at the start of this 2 second
period and then switch to a solid tone after the keys have
been zeroed. The display will indicate "KEY ZERO."
If the cryptographic key(s) are zeroed, one or more
keys must be transferred from the Keyloader into the
radio before private communications may continue.
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