American Dynamics ADC770 - Manual (Page 10)

E-10
INTRODUCTION
13 [ , , , ] Up-and-down, left-and-
right Button
These buttons select items on the menu
screen and change a set value.
(
੬ Page 23)
14 [EXT.TERM-ON/OFF] Terminal On/Off
Switch of External Synchronization
Signal
This is a terminating ON/OFF switch for
the external synchronization input signal.
When this is switched ON, termination is
executed via a 75 Ω resistor.
ON:
terminates at 75Ω.
OFF: does not terminate at 75Ω.
(ON: At time of factory shipment)
15 [INT/GL, LL] Selector Switch for
Synchronizing System
This switch can set a synchronizing system
of the camera.
INT/GL:
This is set for internal synchronization
(INT) or external synchronization (GL).
LL (Line Lock):
The camera’s vertical synchronization is
locked to the AC 24V power line frequency.
When switching between multiple cameras
using a switcher, selecting this mode and
adjusting the vertical phase can reduce the
monitor sync disturbances occurring when
the camera image is switched. This cannot
be used in regions where the power
frequency is 50 Hz. (INT/GL: At time of
factory shipment)
16 NOT USED
This cannot be used. Do not switch.
Controls, Connectors and Indicators (Continued)
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