Acomdata Ondago, User Manual

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Hi-Speed USB 2.0
USB (Universal Serial Bus) is an interface technology for the
serial transmission of digital data. The original standard (USB 1)
could transmit data at speeds of up to 12 Mbps. USB 2.0
has a maximum throughput of 480 Mbps (60 Megabytes/s)
–– that’s up to 40 times faster than USB 1.
Data transfer rates up to 480 Mbps
480 Mbps is equivalent to 60 Megabytes per second. Put
another way, it is possible to transfer a full gigabyte of data
in just under 18 seconds. However, 480 Mbps is the maxi-
mum speed; data transfer rates will vary depending on a
number of factors, including available CPU resources.
Supports up to 127 devices
Connecting more than one or two USB devices to a computer
typically requires the use of one or more USB-equipped
hubs; a hub can typically accommodate several USB devices.
Master-slave architecture
The computer (the master) dictates data flow to, from, and
between attached USB devices (the slaves).
Cable length up to 5 m
On-bus power up to 2.5 W
USB can supply up to 2.5 W of electrical power, making it
possible to use some low-power-consumption devices with-
out a dedicated electrical connection.
Plug & Play
You do not need to assign ID numbers, or connect termina-
tors. On most operating system you do not need to install
computer. This lack of dependence on the host is one of the
reasons FireWire devices are, on average, faster than USB 2.0
devices in routine day-to-day use, even though the rated
maximum data transfer is lower than that for USB 2.0.
Cable length up to 4.5 m
Standard FireWire 400 cables use 6-pin connectors at both
ends. Cables with 4-pin connectors are used for connecting
FireWire devices to laptop/notebook computers and other
devices that have 4-pin ports.
On-bus power up to 45 watts
FireWire can supply up to 45 W of electrical power, making it
possible to use many low-power-consumption devices with-
out a dedicated electrical connection. (FireWire cables with
4-pin connectors cannot transmit electrical power.) When
a device is powered via FireWire, power is delivered only
when actually needed.
Plug & Play
You do not need to install drivers, assign unique ID numbers,
or connect terminators.
Hot Pluggable
FireWire devices can be connected to or disconnected from
the computer while the computer is running.