09
Nov
L/L INT Switch – Security Camera Switches & Adjustments

L/L - INT Security Camera Switch SettingThis CCTV Security Camera switch selects the camera synchronization mode: internal synchronization mode (INT) or line-lock mode (LL).
L/L: Sets it to line-lock mode. This makes the vertical phase of the camera’s video signal match the phase of the AC power.
INT: Sets the internal sync to 2:1 interlaced.

stored in: CCTV Glossary and tagged: , , , ,
6 Comments

6 Responses to “L/L INT Switch – Security Camera Switches & Adjustments”

  1. Eric Says:
    November 9th, 2009 at 1:32 pm

    So this is helpful where the power has phase issues. Particularly where there is a variance from the standard 60Hz cycle that we rely on for AC power.

    I’m pretty sure the 2nd part is wrong. Can somebody please check with the MFG. and update this post?

  2. Ralph Zimmerman Says:
    November 9th, 2009 at 4:09 pm

    I am glad there is some one that know what all this stuff means.

  3. Hugh Kelly Says:
    November 9th, 2009 at 6:08 pm

    The way I understand the “interlace mode” to be used is as a process where every other horizontal line is scanned in one field while the alternate lines are scanned in the next field to produce a complete picture frame.

  4. yanieh Says:
    November 10th, 2009 at 8:16 am

    what are these for again? kindly elaborate. i would love to know. thanks a lot.

  5. tomato64 Says:
    November 10th, 2009 at 12:10 pm

    hmm, still not sure I understand…

  6. Matthew Says:
    November 16th, 2009 at 4:50 pm

    I’m unclear as to the importance of these switches. Can someone elaborate?

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