Ensemble Designs 9455 3G Clean and Quiet Protection Switch - Manual (Page 9)

www.ensembledesigns.com 7435 and 9455 - page 9
Model 7435 and 9455 Clean and Quiet Protection Switches
Applications
Auto-Switched Upconversion Application
The diagram below shows a typical use for the 7435 module, where it is used to form a fully redundant,
auto-switched conversion chain. The Primary input is backed up with a Secondary input from a video
server. When a switch occurs, the output is always clean switched.
Master
Control
7435
Clean and Quiet
Protect Switch
HD SDI
Control
Alarm Outputs
Video
Server
(Backup)
HD SDI
Primary
Secondary
HD SDI
To Transmitter
Redundant Auto-Switched Conversion with 7435 Module
The 7435 Clean and Quiet Protection Switch accepts HD SDI or SD SDI inputs. For 3G signals, choose
the 9455 Clean and Quiet Protection Switch.
Relay circuits accessible from the 9-pin D Control connector can be connected to alarms for
monitoring Primary and Secondary status and switch position.
Fiber Feed Application
In the example below, a fiber feed goes to an Avenue 3720 optical-to-electrical converter and into the
9455. The 9455 evaluates the 3Gb/s HD SDI signal health of both feeds and cleanly switches to the
secondary feed if required.
3720
O to E
9455
Clean and Quiet
Protect Switch
HD SDI
Primary
Secondary
3720
O to E
HD SDI
Fiber
Fiber
Satellite Uplink
Fiber Feed with 9455 Module