Shure QLXD2L50 Manual De Usuario

13

Do Not Duplicate or Redistribute

Control Lock Options for the Receiver and Transmitter

Control lock options are available for both the receiver and the transmitter to protect against accidental or unauthorized changes to the settings. Locks 

can be directly set from the component menu, or remotely set from WWB6. To maintain protection, controls remain locked when the transmitter is turned 

off and turned on.

Audio Signal Encryption

The QLX-D receiver features Advanced Encryption Standard (AES-256) to protect the audio signal. When encryption is enabled, the receiver generates 

a unique encryption key which is shared with a the transmitter during an IR sync. Transmitters and receivers that share an encryption key form a pro-

tected audio path, preventing unauthorized access from other receivers. To maintain security, components remain encrypted when turned off and on.

The receiver has the following control lock options which can be used sepa-

rately or in any combination:

•  gain: locks the arrow buttons to prevent changes to the audio gain 

settings.

•  menu: prevents access to menu items and IR sync (gain controls and 

power switch remain active)

•  power: disables power switch (gain and menu controls remain active)

 The transmitter controls can be locked or unlocked by selecting On 

(locked) or OFF (unlocked) from the transmitter lock menu.
 If an attempt is made to access a locked control, the lock icon will 

flash, indicating that the transmitter controls are locked. 

gain

I I I I

II

II

II

II

II

III

III

II

II

II

II

II

I I

I

OFF

To lock a receiver control:
1. Use the menu button to navigate 

to the lock settings.

2. Press the arrow buttons to add or 

remove the lock options shown 

next to the lock icon.

3. Press enter save the lock 

settings.

1. Press the menu button to navigate to the encryption menu, indicated by the key icon.
2. Use the arrow buttons to select an encryption option:

• on = encryption enabled

• OFF = encryption disabled

3. Press enter to save. The key icon will be shown on the receiver display.
4. Press the sync button and align the IR sync windows of the transmitter and receiver. The encryption key 

icon will appear on the transmitter screen when the IR sync is complete and the encryption key has been 

transferred from the receiver.

Additional transmitters can share the same encryption key with a single receiver. Perform an IR sync to en-

crypt each additional transmitter.

Note: When OFF is selected from the receiver menu to disable encryption, perform an IR sync to clear the encryption key 

from the transmitter and allow free reception by other receivers.

1. Press the menu button to navigate to the encryption menu.
2. Select OFF.
3. Press enter to save.
4. IR sync the transmitter and receiver to clear the encryption key from the transmitter and allow free recep-

tion by other receivers.

Note: If encryption is set from off to on, the receiver will generate a new encryption key and must be IR synced to the 

transmitter to share the new key.

<15 cm (6 in.)

 

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Tip: To unlock the menu and clear all 

locks, press and hold the menu button 

while in the home screen until the unlock 

icon appears. Press enter to confirm and 

save change. 

1. To unlock gain or power settings, 

navigate to the lock settings by 

pressing the menu button. 

2. Press the arrow buttons to de-

select a lock option. 

3. Press enter to confirm and save 

change.

To set a transmitter lock:
1. Use the menu button to navigate 

to the lock settings.

2. Press the ⋀⋁ buttons to select on.
3. Press enter to save. The lock icon 

displayed on the screen, indicates 

that the control locks are enabled

To unlock the transmitter:
1. Press and hold the menu until 

OFF and the unlock icon appear 

on the display

2. Press enter to confirm the change 

and unlock the transmitter.