3025EMC Master Control Switching & Channel Branding
Revision 3.0.3 Page 73
4.10. UPSTREAM ROUTER
The EMC has been designed to work with an upstream router. Two outputs of the router are used to feed
the program and preset inputs to the EMC and a control mechanism (Serial or Q-link) is used by the
EMC to control the switching of these outputs. Other inputs into the EMC can be fed from the upstream
router as well. The EMC input range is then only limited by the size of the upstream router.
If embedded audio is used then only the video routing level/s are used. If AES is being used then the
upstream routing system should 'marry' the video and audio crosspoints for both sources and
destinations, and the audio control level/s should be different to the video control level to allow
video/audio only transitions.
NOTE: If embedded audio is used, users MUST set to the audio level to be the
same as the video level.
Figure 4-25: Upstream Router Tab
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