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LBI-39224
3-169
2175 Hz Hold Tone Level
The 2175 Hz hold tone level should be set in accordance with the level
required at the conventional base station and line loss between the
CEC/IMC and the base station. Each conventional channel can be
individually set to the required level. See the applicable tone control
shelf maintenance manual for additional details on tone remote
controlled base stations as necessary. Select the required level from the
2175 Hz Hold Tone Level drop-down list box, the range of values is
-45 to -20 dB, default value is -33.
Command to Frequency Mapping
Configure a command by selecting it in the Command to Frequency
Mapping list box, the selected command will appear in the Selected
Command text box. Assign (map) a control tone frequency to that
command by selecting the required value from the Selected Frequency
drop-down list box. The range of values is 1050 to 2050 Hz. Repeat
for each command to be configured.
Delete Cmd
Choose the
Delete Cmd
button to unconfigure ("delete") a command.
Save and Send Tone Control Configurations
When programming is complete for a channel, the new configurations
must be sent to the CI Board before they will take effect. The new
configurations will also be saved to the CEC/IMC Manager hard disk
when sent to the CEC/IMC.
Save
Choose the
Save
button to save the currently selected local
conventional channel's configuration to the CEC/IMC Manager's hard
disk drive. A remote conventional channel's configuration cannot be
saved. All of the channel's Tone Control configuration is saved at the
CEC/IMC Manager, including the 2175 Hz hold tone level, in previous
versions this setting was saved only at the CEC/IMC.
Send
Choose the
Send
button to send the currently selected conventional
channel's low-level configuration to the CEC/IMC. Configuration data
is distributed to the channel's VMIM/CIA set as required. All settings
effect (are programmed/stored within) the CCI Controller Board and
the CI Boards within the respective CIA rack. A
Send
will also
automatically save the configuration at the CEC/IMC Manager.