Clear-Com CB-222 - Manual (Page 10)

6 T-Desk Reference Manual
Profiles
T-Desk allows you to save BaseStation and BeltStation settings as “profiles”. This is useful if the system is used in multiple
event applications and offers a quick and easy solution to changing settings. This sub-tab allows you to load previously saved
profiles for either the BaseStation or the BeltStation(s) or save current BaseStation or BeltStation settings as profiles.
Note: Using
the “All BeltStations” loader will result in the BeltStations all having the same settings configuration.
Wired Intercom Levels
The Wired Intercom Levels sub-tab allows you to activate either 2-Wire or 4-Wire mode, and adjust the incoming and outgoing
audio levels on any of the intercom channels (A-D). The audio levels are measured in decibels (dB). To activate a channel,
simply click the channel button (A-D). Once the channel is activated you can adjust the levels using the slider bar(s). To adjust,
use your mouse to click on the slider you want to change and drag it to the new position (or use keyboard arrow keys). An
active channel will appear in green and deactivated channels are grayed out. Note: A single intercom channel cannot be activated in both
2-Wire and 4-Wire mode at the same time.
y Master Mode (Set Base as Master) - this mode is available when two or more BaseStations are connected for 2-Wire
operation, while slide switches (on BaseStation) are set to ClearCom mode, and an external 2-Wire intercom system is not
connected. Master Mode will provide power for audio that a connected external 2-Wire intercom system would normally
provide. Master Mode is only available when the BaseStation slide switches are set to ClearCom; a green Master Mode
light will come on in T-Desk when enabled. When unavailable (in RTS or Balanced (BAL) mode), the button will be disabled
and grayed out.
y Null Two-Wire Hybrid - this button initiates “nulling” on channels that are connected to a 2-Wire intercom system. Before
nulling, all talk buttons (mics) must be off on all Tempest BeltStations and all 2-Wire intercom devices to insure accurate
results. All 2-Wire intercom interfaces experience echo due to inherent inefficiencies in the 2-Wire hybrid circuitry. When
the circuit is nulled, a tone is generated, the echo is monitored, and Tempest’s internal circuitry automatically adjusts to
minimize the echo. Any connection made through 2-Wire intercom connections requires nulling. For more information
on nulling refer to the Tempest2400 Wireless Reference Manual for more about nulling the system.
Note: The nulling process will
interfere with normal communication, therefore, it should be done prior to use and not during.
To select the “type” of 2-Wire intercom system, use the slide switch(es) on the front of the Tempest BaseStation labeled CHAN
A&B (and CHAN C&D with four-channel BaseStations). This setting must be physically changed to either RTS, ClearCom, or
BAL and is not adjustable via T-Desk. However, you can view the current placement of switch(es) on the bottom of the T-Desk
screen in the Dashboard Status Bar.