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Introduction
Figure 1.8: Front Panel Controls
1.6.3
Front Panel LEDs
Figure 1.8 shows the location of the LEDs on the front panel. The LEDs indicate the
equipment status as follows:
The red ALARM LED is used to indicate an IRD fault condition, e.g. a missing or faulty input
signal. It should be off for correct operation, although it may be lit briefly during power up.
The green LOCK LED is used to indicate that the IRD is locked to a transport stream when lit,
and indicates correct conditions and correct system functioning.
1.6.4
Bit Error Ratio Measurement
For satellite receivers, Bit Error Ratio (BER) measurement is done by an LCD display
representation. See the Satellite menu (Annex C, Menus). C/N is also available in this way.
1.6.5
Conditional Access and Scrambling Options
TANDBERG DirectorV5
With the appropriate hardware option fitted, there is a slot on the rear panel to allow the
insertion of a Conditional Access (CA) card for the TANDBERG DirectorV5 CA system.
Remote Authorisation System (RAS 1 and 2)
With the appropriate configuration, the TT1260 fully descrambles Remote Authorisation
System (RAS) input transport streams. The ability to decrypt all the components in any other
transport stream is a function of the specific CA system decryption.
Basic Interoperable Scrambling System (BISS)
With the appropriate configuration, the TT1260 descrambles the BISS Mode 1 or Mode E input
selected service. This system has been developed by the European Broadcasting Union
(EBU) as an open scrambling system.
BISS (as specified in EBU Tech 3292 May 2002) has five main levels of operation: Mode 0,
Mode 1, Mode 2, Mode 3 and Mode E.
Signal Protection
With the appropriate configuration, the TT1260 fully descrambles Signal Protection input
transport streams.
Page 1-14
LCD display
Alarm LED
Lock LED
Reference Guide: TT1260 Contribution Receiver
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