SIGMA LBA-708 - Manual (Page 148)

Chapter 7 DIGITAL CAMERA OPTION
7.1 Digital Camera Option
This section will discuss how to interface a Digital Camera with an LBA-
400/500/700/708/710/712/714PC-D equipped with the Digital Camera Option. This
option is identified by the presence of a –D in the title bar model designation. The frame
grabber will also be provided with a short ribbon cable adapter that plugs into the frame
grabber and has a 50 pin connector attached to a PC mounting bracket.
7.2 I/O Connections
The digital camera connector is a 50 pin standard SCSI-2 style, however the circuit connections
are NOT SCSI compatible. A typical compatible cable assembly is AMP 750254-2. Sample
compatible connector / cable components are:
• Plug AMP 750913-5 for .032”-.036” OD, 28 awg wire
• Plug AMP 1-750913-5 for .029”-.031” OD, 28 awg wire
• Housing AMP 749193-2 for .400” max. cable OD
• Cable Madison SPEC4084-5A, or 50SD08TIA
The signal inputs to the LBA must be differential RS-422 or RS-644 (LVDS) compatible.
Each input pair is terminated into 110 ohms at the LBA-PC. For good noise immunity and signal
integrity, we recommend a twisted pair cable with a characteristic impedance of about 100-120
ohms per pair with an overall shield.
There is not an industry standard for digital camera connectors, so each camera type will
require a custom interface cable assembly. Consult your camera operator’s manual for
particular connector requirements. Most cameras will have similar output signal functionality,
while each will have slightly different signal timing properties.
The Figures below describes the signal pin outs for the 50-pin digital camera connector based
on the model frame grabber in use. The first figure is for the older LBA-400/500 models while
the second figure is for the newer LBA-7XX models.
Note: Cables for LBA-400/500 models that support 12 bit cameras will work as is with the LBA-7XX
models. Cables for 8 or 10 bit cameras are not compatible with the LBA-7XX models and must either be
rewired or replaced with newer designs. Contact the Spiricon Service or Sales department to resolve any
camera cable compatibility issues.
Operator’s Manual LBA-PC 148