Extron electronic 450 Plus manual Reset button, External sync systems with MAV Plus Video BMEs

Installation, cont’d

Reset button

j Reset button — The Reset button initiates four levels of reset to the matrix switcher. Press and hold the button while the switcher is running or while you power up the switcher for different reset levels.

See Performing soft system resets in chapter 3,

Operation, for details.

Rx

RESET

•Events (mode 3) reset — Hold Reset for 3 seconds then release and push again to toggle events monitoring on and off.

•IP settings (mode 4) reset — Hold Reset for 6 seconds then release and push again to reset the switcher’s IP functions.

NIP settings reset does not replace any user-installed firmware.

•Absolute (mode 5) reset — Hold Reset for 9 seconds then release and push again to restore the switcher to the default factory settings.

•Hard reset — Hold Reset while powering up the switcher to restore the switcher to the default base firmware, user settings, and files.

NHard reset does not clear the current configuration.

External sync (systems with MAV Plus Video BMEs)

The MAV Plus Video switcher BME switches between inputs during the vertical interval period, resulting in glitch-free video switching. The MAV switcher can use an external signal to synchronize switching during the vertical interval. Without the external sync locking feature, switching between inputs can result in a brief rolling (sync loss) or a brief change in the picture size.

k Ext(ernal) Sync connector — Connect an external sync signal to this BNC connection on BNC 0 for genlocking the video signal in broadcast or other sync-critical applications.

NIn systems with multiple low resolution video BMEs (such as component video and S-video systems), only the External Sync connector on the luminance (Y) video plane’s BME needs to be connected to the black burst generator. This BME should be BME 0

Figure 2-12 shows a basic external sync configuration. The Ext Sync connector receives the timing signal. A tee connector on the connector allows the signal to be passed on to another video device, if required. Terminate the tee connector if desired.

Figure 2-13 shows another configuration, in which the timing source passes through three video cameras and a video scan converter before connecting to the switcher. This type of video camera can synchronize with the external timing source for video editing applications.

If no external sync timing source is connected to the switcher, switching occurs immediately.

2-10 CrossPoint 450 Plus and MAV Plus Switchers • Installation