Bosch DCN Next Generation Manuale Utente Pagina 266

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DCN Next Generation Open Interface Release 2.4 Intercom
en | 266
Bosch Communications Systems | 2007 February | SRS_ICINF | Du110902
2. INTERCOM FOR A REMOTE INTERFACE
2.1 Introduction
The Intercom Remote Interface is part of the DCN NG software, which allows for another
controlling entity outside the CCU, not being the DCN NG Control PC, to use the Intercom
application.
2.2 Remote Intercom Control
Intercom is the application that allows for controlling intercom calls between delegates, chairmen
and interpreters during a conference. It allows several types of calls to be made:
From participant to operator, or vice versa
Between participants, via the operator or directly
From interpreter to operator, or vice versa
Between interpreters, via the operator or directly
From participant to interpreter, or vice versa, via the operator or directly.
More details on the complete IC application can be found in the user manual.
Setting up and controlling intercom calls with a remote interface is by means of calling a defined
set of Remote Functions and acting upon a defined set of Update Notifications. The general
concept of Remote Functions and Update Notifications is described in [SRS_INF]. [SRS_INF]
also describes the protocol and hardware conditions concerning the remote interface.
Together with this remote interface, there are up to three locations in a full-connected CCU where
IC can be influenced. These locations are:
The remote interface or remote controller using the RS-232 interface. The remote controller
makes Remote Function calls for Intercom.
The actual units that handle their intercom handset.
The interpreter units that handle their intercom- or chairman-call button.
It is not possible to receive update notifications on both the remote controller and the DCN NG
Control PC.
During the processing of remote functions on the CCU, the update messages are created and
transmitted. This implies that the response information of a remote function can be received after
the reception of an update notification. The remote controller must wait for the response of the
remote function. After reception of the response appropriate action should be taken upon the
error code returned. The notifications received during the wait for the response may be
processed directly.
This document gives the set of Remote Functions and the set of Update Notifications concerning
Intercom. The relation between Remote Function, sent by the remote controller, and Update
Notifications is given in the description of each separate Remote Function. The relation between
unit events and Update Notifications is given in section 4.1.2.
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