TechVision Z-HA2PS6SW18, Руководство пользователя

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Fig 2 Fig 3
2.2 120Ω terminal resistance is connected as shown in fig 2.
120Ω terminal resistance is available in the circuit board and the connection is shown as
following:
When n
eeding to connect 120Ω resistance, toggle the 8
th
bit of DIP switch SW2 to "ON" .
This way the 120Ω resistance is connected to the circuit.
Appendix
Ⅳ
Exception Handling
Issue Possible Reason Solution
After power
is applied,
there is no
motion
(self-test)
and no video
image.
Cable harness is improperly
connected Verify that the orientation of the
connector input
Input power voltage is too low Verify the voltage of the input power
Power supply is not work Change a new power supply
Self-test is
normal, but
cannot
control dome Wrong communication settings
Set the correct protocol, baud rate and
address of dome device
Improper connection of control
cable (polarity)
Verify the polarity of the RS485
connection as per the instruction
manual
Noise after
self-testing
Mechanical obstruction Verify and correct it
Camera module is not installed
correct
Correct
Low power Change the correct power supply
Image is not
stable
Low power
Check the power supply or make sure
the power input is DC 12V
Video cable is improperly
contact
Verify the contact of the video cable
Image is
blurring
Camera is on manual focus Change to auto focus
The lens is dusted Clean the lens
Control to the
dome is not
smooth
Power is too low Change the DC 12V Power supply
Communication distance is too
long Make sure the distance is in the
allowed range
RS485 cable is not properly
contact
Make the RS485 is properly contact
Too many domes connected
Make sure the connected dome is in
the allowed quantity