DRAKE 4000 series II Podręcznik Użytkownika Pobierz pdf (Strona 209)

4000 Digital Series II Issue 1.4 Panel User Guide

STA0380 Page 179

Loudspeaker Mute

The loudspeaker mute status can be changed locally using the INFO feature in SOFT mode. The default

status is not muted (i.e. OFF).

The current loudspeaker mute setting is displayed on the top line of the bottom row of keys in INFO

mode. The setting is toggled between OFF and ON by pressing the key labelled MUTE.

When SOFT mode is exited, lighting the green LED associated with the REPLY key indicates that the

loudspeaker is muted.

Microphone Gain

The headset or main microphone gain can be changed locally in INFO mode. When the headset key is

pressed the headset microphone gain is displayed and can be changed; otherwise the main microphone

gain is displayed. Seven possible levels are available, ranging from 40 ? 80 dB (40dB, 50dB, 55dB,

60dB, 65dB, 70dB and 80dB). The default levels are 65dB for the headset microphone and 50 dB for

the main microphone.

The current microphone gain setting is displayed on the top line of the bottom row of keys in INFO mode.

Stepping through the valid microphone gain values when the key labelled MIC is pressed changes the

setting.

Side-tone Enable

The default side-tone enabled/disabled status can be changed locally in INFO mode. Left and right side-

tone channels can be controlled. The default status is ON for both channels.

The current side-tone settings are displayed on the top line of the bottom row of keys in INFO mode. The

settings are toggled between OFF and ON by pressing the keys labelled LTONE or RTONE.

6.4 PD4217 - Intelligent Control Panel

This Section describes the control operation of the PD4217 1RU Intelligent Control Panel, and

concentrates on the different style of this panel control to other 4000 system panels, as well as the new

panel features. This section should be read in conjunction with the sections that cover the operational

features considered standard to all panel types (e.g. REPLY key behaviour and LED feedback).

The PD4217 front panel consists of 14 Direct Access Keys (DAKs), 6 pushbuttons for controlling the

panel operating mode, and a Rotary Encoder to scroll and select options from within the current

operating mode. The number of DAKs expands to 26 by using the SHIFT key. The PD4217 panel

functions in one of three operating modes; Master Level Control Mode, DAK Level Control Mode and

SOFT Programming Mode (the default is Master Level Control Mode).

6.4.1 Rotary Encoder

A Rotary Encoder on the panel, although used primarily for level control, is also used to scroll through

lists of options whilst in one of the three operating modes. A 4 character LED display adjacent to the

encoder is used to display information on the current mode or the value selected by the encoder. The

Rotary Encoder has continuous movement, without any mechanical start and end positions. When

scrolling through the level control values, the encoder display stops scrolling when the limits 0 and 10

have been reached. Further turning of the Rotary Encoder in the same direction, once a limit has been

reached, does not have any action. Scrolling of the SOFT Mode options also stops when the top or

bottom menu option (i.e. "ASSN" or "CALL" respectively) is being displayed. When scrolling the directory

on the display above the DAKs, the Rotary Encoder can be turned continuously in the same direction.

For example, after the last entry in the directory has been reached the display wraps around to the top

of the directory again. Similarly the DAK entry attribute options (Talk, Listen etc..) wrap around when they

are scrolled.

The Rotary Encoder is sensitive to the speed of rotation. A quick turn will increase the scrolling rate to

allow faster movement to selections that are 'further away'.

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