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24 C1555M-G (12/07)
• Downframing—To expand the matrix video outputs beyond 32, you can loop the video from the first CM9770-MXB to subsequent
CM9770-MXB units for an additional 32 monitor outputs on each matrix bay. Refer to Figure Figure 15..
You can connect a maximum of eight bays in a downframing configuration for a total MXB capacity of 256 monitors; in addition, you can
increase monitor capacity further by using MDA units, for a total single-node system capacity of 512 monitors.
Refer to the Installing Additional Matrix Bays—Sideframing and Downframing section in the Appendix for detailed downframing instruc-
tions.
Figure 15. Sample Single-Node System with Downframing
MONITOR 1
MONITOR 32
CAMERA 256 CAMERA 1
CM9770-MXB
CM9770-MXB
MONITOR 33
MONITOR 64
CM9700-CC1
VIDEO
RIBBON
CABLES