User manual GRASS VALLEY 7620PX DATASHEET

[. . . ] 7620PX Changeover Unit 77 7620PX LOCK LOCK The 1 RU standalone 7620PX changeover unit is the complement of the 7600REF reference and test signal generator. [. . . ] The unit includes battery backup and local and remote alarm alerts for power loss. Each unit has two triple-switching relay modules, each with three independent sets of primary and secondary inputs feeding a relay-protected output. These switches monitor sync pulse and color burst, typically used for SPG feeds, test signals, or pulse outputs. Also included are two dedicated black burst monitoring/changover switches, and one dedicated SDI monitoring/changeover switch. · 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 montioring/changeover module · Switching to main inputs by default in case of power failure Dedicated AES/EBU audio monitoring and changeover for two audio inputs are provided via a 15-pin connector. Monitoring and remote control are also available through a 25-pin remotes connector. Key Features · Two triple-switching relay modules monitor sync pulse and color burst for six independent signal pairs, such as Black Burst, Tri-level sync, analog video, and other test signals · Two dedicated Black Burst monitoring and changeover switches · One dedicated SD/HD-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 Applications · Dual-redundant master 7600REF reference generator · Redundancy for any vendor reference and test signal generator Specifications Standard Configuration Two triple-switching relay modules providing: ·Sixindependentinputpairs, primaryandsecondary with relay-protected output (12 inputs/6 outputs) monitored for sync pulse and color burst levels ·Changeoverswitchedbyrelay ·Idealformonitoring analog video, Black Burst, Tri-level sync, and other test signals with sync pulse and color burst levels Two dedicated Black Burst monitoring/ changeover modules, each providing: ·Primaryandsecondaryinputsfeedingoneswitching output ·Connectors: BNC One dedicated SDI monitoring/changeover module with: ·PrimaryandsecondaryHDorSD-SDIinputfeeding one switching output ·Changeoverswitchedbyactivebuffers ·Connectors:BNC Two AES/EBU monitoring/changeover switches, each with: ·MainandreserveAES/EBUaudioinputandoutput available through the AES/EBU 15-pin Sub D connector ·Maybeconnectedasbalancedorunbalancedaudio Ordering Information Control and Monitoring Local: switches and LEDs GPI I/O: D-25 connector 7620PX 7620PX series changeover unit Power 220/240V, 40VA max. Weight Max. [. . . ] 5. 2 kg fully equipped Dimensions Height: 44 mm (1 RU) Width: 482. 6 mm Depth (excluding connectors): 435 mm Environmental Operating temperature: +0° to +50°C For detailed specifications, installation, and setup instructions see: www. grassvalley. com/docs/modular [. . . ]