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The 1 RU standalone 7620PX changeover unit
is the complement of the 7600REF 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.
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
Specifications
Standard Configuration
Two triple-switching relay modules 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, 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:
• Primary and secondary inputs feeding one switching
output
• Connectors: BNC
One dedicated SDI monitoring/changeover
module 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
7620PX Changeover Unit
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
Control and Monitoring
Local: switches and LEDs
GPI I/O: D-25 connector
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
7620PX
7620PX
Dedicated AES/EBU audio monitoring and
changeover for two audio inputs are provided
via a 15-pin connector. The audio can be
connected as balanced or unbalanced.
The unit can be configured locally with
front panel switches. Unit and input status
are provided by LEDs on the front panel.
Monitoring and remote control are also
available through a 25-pin remotes connector.
Applications
•
Dual-redundant master 7600REF reference
generator
•
Redundancy for any vendor reference and
test signal generator
Ordering Information
7620PX
7620PX series changeover unit
For detailed specifications, installation, and setup
instructions see:
www.grassvalley.com/docs/modular
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