PCI-SIO4 User Manual
General Standards Corporation
8302A Whitesburg Drive Huntsville, AL 35802, Phone: (256) 880-8787
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CHAPTER 6: ORDERING OPTIONS
6.0
ORDERING INFORMATION
Since the SIO4 is designed to fit a variety of high-speed serial interface needs, there are several options
that must be specified when ordering the SIO4 board. Please consult our sales department with your
application requirements to decide on the correct ordering options.
6.0.1
CABLE
I
NTERFACE
RS485/422
I
NTERFACE
The RS485/RS422 interface provides for clock speeds up to 26MHz. This is the standard interface
option.
RS232
I
NTERFACE
The RS232 interface provides for clock speeds up to 1MHz. This is the standard
interface option.
6.0.2
F
IFO
S
IZE
The SIO4 can accept FIFOs with depths ranging from 512 bytes to 32k bytes. Larger FIFO depth is
important for faster interfaces to reduce the risk of software overhead. Standard configuration of the
SIO4 contains 32k byte deep FIFOs.
6.0.2
I
NTERFACE
C
ABLE
General Standards Corporation can provide an interface cable for the SIO4 board. This cable is twisted
pair for increased noise immunity. Several standard cable lengths are offered, or the cable length can be
custom ordered to the user’s needs. Versions of the cable are available with connectors on both ends,
or the cable may be ordered with a single connector to allow the user to adapt the other end for a
specific application. Please consult factory for more information on cabling options and pricing.
6.1
CUSTOM APPLICATIONS
Although the SIO4 board provides extensive flexibility to accommodate most user applications, custom
interfaces exist, which may not exactly conform to the SIO4 interface standard. General Standards
Corporation has worked with many customers to provide customized versions based on the HPDI32 board.
Please consult our sales department with your specifications to inquire about a custom application.