THOMSON Amethyst III - High-Density Switch; ASI Switch

Chapter 1 ’Overview’ — Purpose
Amethyst III DTV Smart Switch 17
User Manual
High-Density Switch
Providing up to four 1+1 ASI switches or eight 1 + 1 IP switch in 1RU,
Amethyst III monitors and performs all the configured tests
simultaneously
on each input.
ASI Switch
Figure 1-2. System application: 2 [1 + 1] ASI single-output devices redundancy
Amethyst III
(ASI Interfaces)
2 x [1 + 1] switches
2 redundancy groups
Main
Backup
Main
Backup
Figure 1-3. TS over ASI inputs and outputs
ASI In 1
ASI In 2
Switch 1
ASI Out 1
(secured)
ASI Out 2
(monitoring)
ASI In 3
ASI In 4
Switch 2
ASI Out 3
(secured)
ASI Out 4
(monitoring)
TS1
TS1'
TS2
TS2'