Instruction manual

Guppy PRO Technical ManualV4.1.0
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FireWire
Capabilities of 1394a (FireWire 400)
FireWire 400 (S400) is able to transfer data between devices at 100, 200, or 400
MBit/s data rates.
The 1394a capabilities in detail:
• 400 Mbit/s
• Hot-pluggable devices
• Peer-to-peer communications
• Direct Memory Access (DMA) to host memory
• Guaranteed bandwidth
• Multiple devices (up to 45 W) powered via FireWire bus
IIDC V1.3 camera control standards
IIDC V1.3 released a set of camera control standards via 1394a, which estab-
lished a common communications protocol on which most current FireWire cam-
eras are based.
In addition to common standards shared across manufacturers, Allied Vision
offers Format_7 mode that provides special features (smart features), such as:
• Higher resolutions
• Higher frame rates
•Diverse color modes
as extensions (advanced registers) to the prescribed common set.
Capabilities of 1394b (FireWire 800)
FireWire 800 (S800) was introduced commercially by Apple in 2003 and has a 9-
pin FireWire 800 connector (see 1394 Installation Manual and in chapter IEEE
1394b port pin assignment on page 62 for details). This newer 1394b specifica-
tion allows a transfer rate of 800 MBit/s with backward compatibility to the
slower rates and 6-pin connectors of FireWire 400.
The 1394b capabilities in detail:
• 800 Mbit/s
• All previously described benefits of 1394a
• Interoperability with 1394a devices
• Longer communications distances (up to 500 m using GOF cables)
IIDC V1.31 camera control standards
Along with 1394b-, the IIDC V1.31 standard arrived in January 2004, evolving
the industry standards for digital imaging communications to include
I/O and RS232 handling, and adding further formats. The increased bandwidths
enable transmitting high-resolution images to the PC’s memory at high frame
rates.