Ericsson TT1222 Guide de l'utilisateur télécharger pdf (Page 18)

Introduction

1.2.4 Conditional Access

The transport stream received by the IRD may be encrypted. The CA system is

used to decrypt the required components of the transport stream so that they can be

decoded.

The following conditional access systems are available:

• DVB Common Interface

• EBU Basic Interoperable Scrambling System BISS Mode 1 and Mode E (as

specified in EBU Tech 3292 May 2002)

• Director (Option). Over-air remote control is available if the TT1222 is used as

part of a Director system (over-air software downloading, re-start, tuning and

retuning etc.)

The different CA options may be used, for example: Director and BISS, however,

streams with mixed CA are not supported.

1.3 TT1222 Control Modes

1.3.1 Introduction

The TT1222 is designed for unattended operation. Once set up, it requires no

further attention except to ensure that the fan is working. There are four control

methods associated with the Receiver, front panel, remote control (RS-232),

nCompass/web browser (Ethernet) and Director.

In Local control mode, the TT1222 may be controlled by the front panel, web

browser or nCompass Control.

In Remote control mode, the TT1222 may be controlled by Ericsson RS232

proprietary control solution.

In Director mode, the TT1222 may be controlled by DirectorV5 NCP over-air control

commands.

Note: Local Control is the factory default.

1.3.2 Unit Control

1.3.2.1 Front Panel

The receiver is controlled using the front panel menus.

The unit must be set to ‘local’ control to use this mode.

EN/LZT 790 0002/2 R1A

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Ericsson TT1222 Guide de l'utilisateur Page 18