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DCN Next Generation Open Interface Release 2.4 Message Distribution

en | 228

Bosch Communications Systems | 2007 February | SRS_MDINF | Du090902

4. UPDATE NOTIFICATIONS

4.1 Introduction

This chapter describes the various update notifications sent by the CCU. All the update

notifications of the MD application are listed in this chapter.

4.1.1 Update notification item explanation

Each update notification description consists of the following items:

• Purpose

A global description of the purpose of the notification.

• Notify structure with this update

The information passed with the update notification.

4.1.2 Unit/user event relations

As mentioned in section 2.2, update notifications can be the result of unit/user events.

This section gives information about the events coming from a unit and the processing done for

the events. In the table below an overview is made about the events and the actions performed.

Event MD_C_REQ_BUTTON_ON_OFF

Press (and hold) auxiliary button (Delegate

unit)

Release auxiliary button (Delegate unit) X

Press (and hold) speak slowly button

(interpreter desk)

Release speak slowly button (interpreter desk) X

Press (and hold) help button (interpreter desk) X

Release help button (interpreter desk) X

Close external present contact (Delegate unit

with external present contact)

Open external present contact (Delegate unit

with external present contact)

4.2 MD General Notifications

4.2.1 MD_C_REQ_BUTTON_ON_OFF

Purpose

This notification informs the remote controller that a request button on a unit is pressed (and

held) or released. The notification specifies which button on which unit is pressed or released.

Note that the function is also used for the external present contact. In this case no buttons is

pressed, but the contact is closed. The closing and opening of the contact can be performed by

means of a button though (if a button is connected to the external present contact).

Notify structure with this update

The update comes with the following structure:

typedef struct

{

WORD wUnitId;

BYTE byButtonType;

BOOLEAN bOn;

} MD_T_REQ_BUTTON_ON_OFF;

where:

wUnitId Unit Identifier of the unit on which the request button was

pressed. Unit identifiers can be retrieved from the system using

the remote functions for System Config [SRS_SCSIINF].

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