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4.1
AIA Interface Connector
INTRODUCTION
Chapter four gives you the information needed to interface the KODAK
MEGAPLUS Camera, Model ES 310 to a frame grabber device. The KODAK
MEGAPLUS Camera, Model ES 310 is a black and white camera with dual eight
bit digital video outputs. Each frame has 648 columns and 484 rows of pixels
(picture elements) containing valid video data.
AIA INTERFACE CONNECTOR
All the signals referred to in this section are present at the AIA interface connec-
tor on the rear panel of the camera. Table 1 lists each signal and its pin number.
The connector for this port is a 68 pin, high density, dual row, D type connector.
This connector is the same as that used for the SCSI-2 B cable interface. The
connector has .050 pin spacing and a D-type shell that is 2.5 inches long.
DIGITAL VIDEO OUTPUTS
The camera has two digital video output channels, A and B, each with eight bits
labeled MSB through MSB-7. The MSB is the Most Significant Bit and MSB-7
is the LSB (Least Significant Bit) in your camera configuration. These signals
are output as differential pairs with signal levels conforming to the RS422
specification. The non inverting part of the differential pair is present on the
output labeled (+), while the inverting part of the differential pair is present on
the output labeled (-).
TIMING OUTPUTS
There are three timing outputs presented on the AIA interface connector. They
are FRME ENA (frame enable), LINE ENA (line enable) and PIX DATA STRB
(pixel data strobe). These signals are output as differential pairs with signal
levels conforming to the RS422 specification. The non inverting part of the
differential pair is present on the (+) output , while the inverting part of the
differential pair is present on the (-) output. A signal is true when the (+) line is
more positive than the (-) line.
CONTROL INPUTS
The control input EXPOSE is provided as a means of externally synchronizing
the camera. This input is designed to accept RS422 differential, or single ended
TTL. To drive this input differentially connect both the (+) and (-) inputs to an
RS422 driver. Connect one input to a TTL driver and leave the other input
floating to drive the EXPOSE input from a single ended signal source.