Changeover Unit

The 1 RU standalone 7620PX changeover unit is the complement of the 7600HD-REF reference and test signal generator. It provides active monitoring and switching of reference and test signal input pairs. Each signal pair has a primary and secondary input feeding a switching output. The unit includes battery backup and local and remote alarm alerts for power loss.

  • Two triple-switching relay modules monitor sync pulse and color burst for six independent signal pairs, such as blackburst, tri-level sync, analog video and other test signals
  • Two dedicated blackburst monitoring and changeover switches
  • One dedicated HD/SD-SDI monitoring and changeover switch with battery backup
  • Two AES/EBU monitor and changeover switches (balanced or unbalanced)
  • Manual or automatic changeover with delay management for preventing switching on glitches
  • Robust operation with simple local configuration and control, including LED status display
  • GPI interface for remote control and monitoring
  • Two hours of backup battery in case of power failure for powering the internal alarm and providing power to the SDI monitoring/changeover module
  • Switching to main inputs by default in case of power failure
Standard Configuration
Two triple-switching relay boards providing:
  • Six independent input pairs, primary and secondary with relay-protected output (12 inputs/6 outputs) monitored for sync pulse and color burst levels
  • Changeover switched by relay
  • Ideal for monitoring analog video, blackburst tri-level sync and other test signals with sync pulse and color burst levels
Two dedicated blackburst monitoring/changeover boards, each providing:
  • Primary and secondary inputs feeding one switching output
  • Connectors: BNC
One dedicated SDI monitoring/changeover board with:
  • Primary and secondary HD or SD-SDI input feeding one switching output
  • Changeover switched by active buffers
  • Connectors: BNC
Two AES/EBU monitoring/changeover switches, each with:
  • Main and reserve AES/EBU audio input and output available through the AES/EBU 15-pin Sub D connector
  • May be connected as balanced or unbalanced audio

Control and Monitoring
Local: switches and LEDs
GPI I/O: D-25 connector

220/240V, 40 VA max.

Max. 5.2 kg (11.46 lbs.) fully equipped

Height: 44 mm (1.72 in.) (1 RU)
Width: 482.6 mm (19 in.)
Depth (excluding connectors): 435 mm (17.13 in.)

Operating temperature: 0° to 50° C (32° to 122° F)

7620PX Changeover Unit Datasheet

Posted Sep 17 2014 (GVB-1-0462A-EN-DS_7620PX) File Size: 303.9 KB

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