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Dolphin Charging/Communication Cradles
Hub of the System
As the hub of your Dolphin system, Dolphin Charging/Communication
cradles perform three important functions – power conditioning,
communications and storage. Four versions of the charging/
communications cradle are available:
•
for communicating with PC-based equipment using a
HomeBase
half duplex serial mode
•
for communicating with devices such as printers and
IntelliBase
modems without integrated IrDA protocol software
•
for communicating with devices without integrated
IntelliBase+
IrDA protocol software and charging and conditioning a spare
battery
•
for communicating directly with a USB-compatible
USB HomeBase
host computer
Power Conditioning
Dolphin charging/communication cradles provide power to the
intelligent battery charging system incorporated into Dolphin
terminals.
The IntelliBase+ has an auxiliary battery well, located on the back of
the cradle, allowing users to charge and condition a spare battery.
Ir/IrDA Optical Communications
The infrared, or Ir communications port, on the HomeBase,
IntelliBase, and IntelliBase+ connects with the IrDA port on the
Dolphin terminal. With no pins or contacts to break, Ir will work
reliably for years. Reliable data communications at speeds of up to
115k baud can be transmitted by the HomeBase, IntelliBase and
IntelliBase+; data transmission rates with the USB HomeBase up to
4Mbps are possible but, at this time, are limited to 115 kbps as the
Dolphin 7400 does not currently support 4 Mbps data transfer.
The IntelliBase and IntelliBase+ infrared connection to the terminal
uses IrDA-compliant hardware and software for a reliable connection.
Communications between the HomeBase and other devices occur at
half duplex serial mode. Half duplex refers to the transmission of data
in just one direction at a time.
The USB HomeBase enables direct communication with USB-
compatible host computers at rates of up 115 kbps. The USB
HomeBase also is IrDA 1.3 compliant.
These peripherals cannot be "daisy-chained" but can be networked
together using a serial or USB hub.
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