DRAKE 4000 series II Uživatelská příručka stáhnout pdf (Strana 49)

4000 Digital Series II Issue 1.4 Panel User Guide

STA0380 Page 19

3.5.2 Direct Access Key (DAK)

The 4000 Series Panels have Direct Access Key (DAK) pushbuttons. These DAKs are used to make

Listen and/or Talk routes to and from the Control Panel or other audio connections. The DAK can also

be assigned to trigger a control (logic) action.

The pushbutton operation is selectable from a range of options and set via the Configuration and Master

Assignment Programming System (CMAPSi) workstation software. The pushbutton actions include:

The Direct Access Keys can be programmed with a range of attributes as set in the Configuration and

Master Assignment Programming System (CMAPSi) workstation software. The pushbutton attributes

are:

NOTE: For the above functions, the destination can be a single or group of panels and external sources,

conferences or IFBs.

Table 7: PD4224R DAK Operation

Latch When a DAK is pressed and released, it latches in the engaged position.

Pressing the DAK again disengages it.

Non-Latch When a DAK is pressed and held depressed, it automatically disengages

when released.

Latch/Non-Latch A combination of the two above such that a quick press will latch the but-

ton and a slow press will be the non-latch action.

Dual Talk/Listen When a DAK is momentary pressed, it makes a latched Listen Route.

The DAK can then be pressed and held to make a Talk Route at the

same time, and released to unmake the Talk Route. A second momen-

tary press disengages the DAK and the latched Listen Route.

Interlock Group A DAK can be assigned to any one of eight interlock groups A - H. Within

an interlock group only one DAK may be active at any one time. If a DAK

in a given group is pressed whilst another DAK in the same group is

already active the currently active key is deactivated and the key pressed

becomes active.

Table 8: PD4224R Pushbutton Attributes

Talk Only A single DAK press causes an audio route to be made from the

source panel to the desired destinations. Normally used for communi-

cation from one panel to another.

Listen Only A single DAK press causes an audio route to be made from the desti-

nation. Used when listening to an external audio signal (not originat-

ing from a Control Panel) is required.

Talk and Auto Listen A single DAK press causes a bi-directional audio route to be made

between the source panel and the destinations. Often used between

panels and external audio signals.

Talk & Forced

Listen

This is similar to Talk and Auto Listen except that the Listen route is

permanently made. The operator need only push the key to talk.

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DRAKE 4000 series II Uživatelská příručka Strana 49