Toshiba IK-DF02A Security Camera User Manual


 
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4-2. Line lock Control
Matching the vertical synchronization with the power frequency is called the Line Lock.
•To activate the line lock, set the LL switch to ON.
When two or more cameras are switched by the video switcher for viewing with a display monitor
the vertical synchronization phase can be locked to the power frequency for a stable vertical
synchronization.
Line Lock
1
ON
OFF
234
Note:
The camera is synchronized to the power frequency of 60 ±1 Hz covering a normal fluctuation of
the power frequency. However, the camera may not cover a large fluctuation caused from the
power generated by a generator, etc.
It takes approximately 10 seconds or more until a stable synchronization is obtained after the
power is turned on. This is normal, because several seconds are required to stabilize the camera
against power noise.
Refer to section 7. "LINE LOCK PHASE" for adjustment instructions.
Display Monitor
Video Switcher
BNC Connector
Connector
Camera 1
To 24V AC UL Listed
Class 2 power supply.
Camera 2
When connecting to DC power supply,
the Line Lock function is not activated.