GX1660 User Manual
70-0057A-A
Allied Vision Technologies (Canada) Inc.
9
These signals only function as outputs and can be configured as follows:
Exposing
Corresponds to when camera is
integrating light.
Trigger Ready
Indicates when the camera will accept a
trigger signal.
Trigger Input
A relay of the trigger input signal used
to “daisy chain” the trigger signal for
multiple cameras.
Readout
Valid when camera is reading out data.
Strobe
Programmable pulse based on one of the
above events.
Imaging
Valid when camera is exposing or
reading out.
GPO
User programmable binary output.
Any of the above signals can be set for active high or active low.
RS-232 RXD and RS-232 TXD
These signals are RS-232 compatible. These signals allow communication from the host system
via the Ethernet port to a peripheral device connected to the camera. These signals are not
optically isolated and reference power ground. If these signals are used in the system, care must
be taken to prevent ground loop problems.
USER GROUND
This connection provides the user ground reference and return path for the isolated sync in and
sync out signals. This connection is necessary if any of the isolated sync signals are to be used.
It is also recommended that this ground connection be physically close to the used sync signals
to prevent parasitic coupling. For example, a good cable design would connect the required
signal on one conductor of a twisted pair and the isolated ground on the second conductor of the
same twisted pair.
USER VCC
This connection provides the power supply for the isolated sync out signals. The voltage
requirement is from 5V to 24V DC. The current requirement for this supply is a function of the
optical isolator collector current and the number of sync outs used in the system. See the
SYNC
OUTPUT
section for more detail. To prevent parasitic coupling this connection should be
physically close to the used SYNC OUT signals and USER GROUND.