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Overview
X64 Xcelera-HS PX8 User's Manual
PCI Express x8 Interface
The X64 Xcelera-HS PX8 is a universal PCI Express x8 board, compliant with the PCI Express 1.1
specification. The X64 Xcelera-HS PX8 board achieves transfer rates up to 1.5 Gbytes/sec.
The X64 Xcelera-HS PX8 board occupies one PCI Express x8 expansion slot and one chassis
opening.
Important:
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Older computers may not support the maximum data transfer bandwidth defined for PCI
Express x8. Such computers may electrically support only x4 devices even in their x8 slot. The
X64 Xcelera-HS PX8 will function correctly in such a computer but at a lower maximum data
rate.
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If the computer only has a PCI Express x16 slot, direct installation tests or the computer
documentation is required to know if the X64 Xcelera-HS PX8 is supported. It has been seen
that many computer motherboards only support x16 products in x16 slots (commonly used with
graphic video boards).
Advanced Controls Overview
Visual Indicators
X64 Xcelera-HS PX8 features 3 LED indicators to facilitate system installation and setup, two on the
board bracket and one located on the top edge of the board. These indicators provide visual
feedback on the board status and camera status.
External Event Synchronization
Trigger inputs and strobe signal are provided to precisely synchronize image captures with external
events.
HS-Link Communications ports
One PC independent communication port provides HS-Link controls for camera configurations. This
port does not require additional PC resources like free interrupts or I/O address space. Accessible
via the board device driver, the communication port presents a seamless interface to Windows-
based standard communication applications like HyperTerminal, etc.
Quadrature Shaft Encoder
An important feature for web scanning applications, the Quadrature-Shaft-Encoder inputs allow
synchronized line captures from external web encoders. The X64 Xcelera-HS PX8 provides two
ways to connect a shaft encoder: (1) an opto-coupled input that supports a tick rate of up to 200
kHz and (2) an RS-422 input that supports a tick rate of up to 5 MHz.