American Dynamics Tyco ADC770 User Manual

Connect the DC 12 V or the AC 24 V power
supply to the DC 12V/AC 24V terminals. To
prevent connection errors or a cable
disconnection, we recommend the use of lug
plates for the connections.
The following table shows the connection
distances and connection cables provided
that 2-conductor VVF cables (vinyl-insulated
vinyl sheath cables) are used.

• If thin cables are used (i.e. with a high resistance), a significant voltage drop will occur

when the unit is at its maximum power consumption. Either use a thick cable to restrict
the voltage drop at the camera side to below 10%, or place the power supply near to the
camera. If voltage drop occurs during operation, the performance will be unstable.

• Attach the cable conductors so that they do not come into contact with the drop prevention

wires.

• Do not allow input from both a DC 12 V and AC 24 V power supply at the same time.
• When using a DC 12 V power supply, ensure that the polarities of the cable are correct.
• The AC 24 V power supply should conform to the following:

Class 2 only

 Power supply

Maximum extension
(reference)

Conductor
diameter

328 feet 853 feet 1345 feet 1640 feet

(100 m)

 

(260 m)

 

(410 m)

 

(500 m)

18AWG 14AWG 12AWG 9AWG

(1.0 mm) (1.6 mm) (2.0 mm) (2.6 mm)

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