Camera interfaces
AVT Prosilica GT Technical Manual
V2.0.8
56
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
