UNIVERSAL SERIAL BUS
QCP provides a full line of USB cables and adapters
including double ended cables with Series A and Series B connectors, for connecting the Host to hubs, keyboards, cameras and other powered devices
The Universal Serial Bus standard
was introduced to provide a high speed, reliable, less expensive and simple method for interconnecting computers and peripherals such as printers, monitors, keyboards, modems, disk drives, CDs, digital
cameras, etc... General Specifications
Speed
Maximum Number of Peripherals
Max Distance
Medium
Standard
Hot plugable
Terminators Required
Chip Makers
Cable/Connector
Data Transfer Method |
12 Mb/s
63
5 m max.
Twisted pair
Consortium
Yes
No
Intel
4 pos.I/O
Asynchronous & Isochronous |
Universal Serial Bus - Series A Applications for those devices on which the external cable is permanently attached , such as keyboards, mice, and hubs
Fully rated speed of 12 Mbs requires use of shielded cable
Lower cost and lower speed, a sub-channel at 1.5Mbs allows use of unshielded cabling
Universal Serial Bus - Series B Application which require detachable external cables such as printers, scanners and modems
Allows for doubles ended cable assemblies
Series A and B cannot be interchanged |
