Connections and operations, Cautions, Operation – Toshiba IK-628A User Manual
Page 5: Line - lock control
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2. CONNECTIONS AND OPERATIONS
HPOWER CORD
(twisted pair line)
(*)Power cord: minimum wire size
of 18 AWG is recommended.
Line - Lock control
24V AC UL Listed Class 2 power supply
Do not overload power supply —
Since this camera uses 24V AC UL Listed
Class 2 power supply, it should be connected to
a power supply that allows for at least 5w
consumption.
Matching the vertical synchronization with the power frequency is called the Line-Lock.
When two or more cameras are switched by the video switcher for viewing by a monitor TV, the vertical
sync, phase can be locked with the power frequency, and a stable vertical sync, is obtained without
being disturbed at the time of switching.
MONITOR TV
CAMERA1
TO 24V AC UL Listed Class 2
power supply
Cautions;
• 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 an engine generator, etc.
• It takes about 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 '' 7.LINE-LOCK PHASE " for adjustment.
2. Operation
(1) Mount a lens on the camera and connect equipment. Applicable lenses are specified in Section 3
'■ LENS
(2) Adjust the lens diaphragm and focus for optimum image.