I/o definition, Camera power, Isolated io ground – ALLIED Vision Technologies Prosilica GT6600 User Manual

Page 61: Rxd rs-232 and txd rs-232, Isolated out power

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Camera interfaces

AVT Prosilica GT Technical Manual V2.1.0

61

I/O definition

Camera Power

The Prosilica GT camera can be powered through the Hirose I/O port, via Pin 1
Camera GND and Pin 2 Camera Power, or through the Gigabit Ethernet port if
using a power over Ethernet (PoE) supported network card, switch, or injector.

Cameras powered by both the Hirose I/O port and the Gigabit Ethernet port will
use the power provided by Hirose I/O port only.

Pin 2, Camera Power, supports an input voltage range of 7–25 VDC. The camera
will not power in reverse polarity. Exceeding the 25 V will damage the camera.

Isolated IO ground

The Isolated IO GND connection provides the user ground reference and return
path for In 2, Out 3, and Out 4. It is recommended that the ground wiring be
physically close to the In/Out wiring to prevent parasitic coupling. For exam-
ple, a good cable design connects In 2 to one conductor of a twisted pair, Iso-
lated IO GND
to the second conductor of the same twisted pair.

RxD RS-232 and TxD RS-232

These signals are RS-232 compatible. These signals are not optically isolated.
Tie RS-232 ground to Camera GND to complete the RS-232 circuit. Communica-
tion is at 11520 baud.

Isolated Out Power

The Isolated Out Power connection provides power for isolated signals Out 3
and Out 4. The voltage requirement is 5–24 VDC. The current requirement for
this supply is a function of the optical isolator collector current and the number
of outputs used in the system. Isolated Out Power wiring should be physically
close to Out 3 / Out 4 wiring to prevent parasitic coupling.

Note

A 12 V power adapter with Hirose connector is available for pur-
chase from AVT:

AVT P/N 02-8003A North America Supply

AVT P/N 02-8004A Universal Supply

www

For complete RS-232 description and usage, see:

http://www.alliedvisiontec.com/fileadmin/content/PDF/
Support/Application_Notes/AppNote_-_RS-
232_AVT_GigE.pdf

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