Encryption Key Management; Settings Menu - Lectrosonics DCR822 Instruction Manual

DCR822
• Shared: This key policy is designed for sports cov-
erage and similar applications where a unique key
provides enhanced security, but multiple transmit-
ters and receivers can share the same key. Once
generated by the receiver, the key can be trans-
ferred via IR to transmitters or additional receivers.
• Standard: This key policy provides excellent se-
curity, second only to the Volatile key policy. Once
a unique key is created in the receiver, it can be
transferred via IR only to transmitters, but not to
other receivers. The receiver tracks the number of
times the key is transferred. Once a Standard key
has been transferred 256 times, an alert will indi-
cate that a new key must be created.
• Volatile This is the most robust key policy avail-
able. After a unique key is created, it can be
transferred only to transmitters, not other receivers.
If a transmitter is powered off, it must have the key
sent to it again from the receiver. If the receiver is
powered off, a new key must be generated and
sent to the transmitters. In encryption terms, this is
the "one time use" key management policy.
Encryption Keys
The DCR822 generates high entropy encryption keys
to sync with encryption-capable transmitters. The user
must select a key type and create a key in the DCR822,
and then sync the key with the transmitter.
1. Begin by selecting a Key Type.
IR&Keys --> Key Type --> Universal, Shared, Stan-
dard or Volatile.
2. Next, if using the Shared, Standard or Volatile key
type, select MAKE KEY to generate a new key.
Select "Yes" to confirm Make Key. IR&Keys -->
Make Key.
NOTE: When Universal Key type is selected,
there
is no prompt to create key, as it is not necessary.
3. A message will indicate that an Encryption Key has
been created.
4. Sync new key with transmitter (see Send Key). The
transmitted audio will then be encrypted with the
new key.
Send Key
Select SEND KEY to transfer the encryption key to
any compatible transmitters or, in Shared key policy,
additional receivers. Success will be indicated by the
message "Encryption Key Sent" on the receiver display,
and "Encryption Key Received" on the transmitter
display. IR key transfer failure will be indicated by the
message "IR Sync Failed" on the receiver display.

Settings Menu

Lock/Unlock
The user can lock or unlock the receiver. In Locked con-
dition, the menus and settings can be browsed but not
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changed. Attempting to change a setting or power off the
unit while in the locked condition causes the message
"Settings Locked" to appear on the screen. The Lock/
Unlock condition will persist through battery changes or
external power being removed.
Backlight
Controls the display backlight timeout interval, following
the last button push. Choose from always on, 30 sec-
onds, or 5 seconds. The backlight will automatically
come on with low battery warnings.
RX Power
This function allows you to power off one or both receiver
channels when not in use, to save power in a portable
DC-powered system. Press the MENU/SEL button to
select Channel 1 or Channel 2. Use the UP and DOWN
buttons to turn on or off the selected receiver.
RX Bat Type
Press the UP or DOWN buttons to select the battery
type in use for the receiver: Alkaline or Lithium (recom-
mended).
Tx Bat Type
Set the battery type for each transmitter channel. Note
that for digital transmitters, the battery type is set in
the transmitter and thus if the transmitter is not on, "no
link" will show on that receiver channel. Use MENU/SEL
to toggle between Channel 1 and Channel 2, and then
use the UP and DOWN buttons to change the battery
type settings for those channels (depending on compat
mode).
Tx Bat Timer
Set transmitter battery timer alerts for each channel.
Choose to enable/disable alert, set time in hour and min-
utes and reset timer. Use MENU/SEL to set and move
the cursor and the UP and DOWN buttons to change
values. To re-set the timer for the selected channel, press
the MENU/SEL and UP buttons together.
Tx Bat Icon
Choose between Bar, Volt or Time. Use MENU/SEL to
select the channel and the UP and DOWN buttons to
change values.
AutoOn
Press the UP or DOWN buttons to enable or disable the
auto power on function.
Edit Names
Edit channel names to easily identify channels on the re-
ceiver home screens or identify different DCR822 receiv-
ers in a rack. Press MENU/SEL to move the cursor, and
press the UP or DOWN buttons to change the numbers
and letters at that cursor location. Press the PWR/BACK
button to save your changes.
LECTROSONICS, INC.