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32 C2910M-A (4/05)
Video Format Autosense
The CCC5100H Series camera offers both manual and automatic options for selecting the correct video format. You can manually select the video
format through the setup menus. Or you can let the camera determine (autosense) the correct video format.
At power-up, the camera checks the following to identify the correct video format:
1. Pelco V-Sync signal: Selected Pelco multiplexers and switchers send this signal up the coax to all attached cameras. It is used to lock
the vertical synchronization pulse of all connected cameras to eliminate certain display problems at the head-end. It also identifies the
video format.
2. Two-button override: When you press and hold the top and center buttons, the camera selects NTSC. When you press and hold the
center and bottom buttons, the camera selects PAL.
You can also perform the two-button override from the CST150/CST100 tool.
Figure 10. Manual Video Format Override
3. Power frequency: When using AC power, the camera selects NTSC if the frequency is 60 Hz and PAL if the power frequency is 50 Hz.
In DC power installations, the camera cannot use the power frequency to identify the video format.
If the camera cannot determine the video format, the CCC5100H Series camera selects the last used video format. The factory default is NTSC.
NOTE: If the Pelco V-Sync signal is present, the camera always uses it to determine the video format.
NOTES:
• To use the two-button override, you must disable the Pelco V-Sync signal to the camera (if used) before power-up.
• To clear the two-button override, you must restore the factory settings from the SYSTEM INFORMATION menu (refer to System
Information Menu).
• If using DC power in a PAL installation without Pelco V-Sync, use the two-button override to select PAL. Otherwise, the camera will
default to NTSC.
PAL
NTSC