QUARTET - ASI or SDI Redundancy Switch / Distribution Amplifier

The Quartet is ASI or HD/SD-SDI Redundancy Switch / Distribution Amplifier, 3G Ready.

It is Ideal for supporting encoder redundancy. The Quartet features automatic or manual switching with automatic rate detection.

Features

 
Two Inputs:
Primary input A with secondary input B used as backup.

Two Front Panel LEDs:
Power - Green indicates powered up. Signal - Green indicates a valid signal is being passed through the system.

Two Selectable Modes (via external RST):
When LEFT and CENTER terminals are shorted together the PRIMARY signal passes. When the RIGHT and CENTER terminals are connected the SECONDARY signal passes. When any of the previous two modes are selected the unit will not use the redundancy backup signal. When the unit is not in manual override mode it uses the secondary signal as a backup.

Redundancy Backup:
When signals on both the primary and secondary are valid the primary signal will pass. If this signal is loosed then the secondary signal will pass. If there is no secondary and primary signal, no input passes. Once a valid signal is connected the unit will then pass that signal, however the primary input takes precedence so if both signals are again connected the primary will pass. If the primary is loosed again the unit switches to secondary. If the primary is then reconnected it will go back to passing the primary. All inputs use autorate detection.

Technical Specifications

General

• Auto rate detection
• Manual input selection or auto switching modes
• Dual input switcher (primary and secondary inputs)
• Passes standards from 143 Mb/s to 2.97 Gb/s (2.97 Gb/s untested)

Signal

• Input Voltage Swing (0 m cable length)

- @270-1485 Mb/s: 720-950 mVpp

      - @2.97 Gb/s: 720-880 mVpp

• DVB-ASI:  up to 270 Mb/s
• HD/SD-SDI:  270 Mb/s, 1.485 Gb/s, and 2.97 Gb/s (2.97 untested)

Equalization

• 350 m cable length equalization at 270 Mb/s
• 175 m cable length equalization at 1.485 Mb/s
• 120 m cable length equalization at 2.97 Gb/s

 Output Voltage Swing

• Nominal: 800 mVpp
• Min-Max: 500-1200 mVpp

Jitter

• Line driver

- @270Mb/s : 260 ps (estimated)

- @1485Mb/s : 97 ps

- @ 2970Mb/s: 85 ps