Hand Held Products 7200/UG Manuel D’Utilisation

C H A P T E R 3 D O L P H I N 7 2 0 0 R F H A N D H E L D C O M P U T E R

About the Dolphin 7200 RF Handheld Computer

The

Dolphin 7200 RF®

terminal integrates the basic functionality of the Batch terminal

with an 802.11b or a WLIF™ interface that allows the terminal to communicate with a

host computer via a wireless local area network (WLAN). Both radio options operate

in the 2.4 GHz frequency band. Terminal emulation software and keypad overlays for

IBM 3270, IBM 5250 and DEC VT100/220 emulation are available for both radio

options. The terminal’s DOS compatible 386 microprocessor is easy to program and

developers can create wireless applications linked to a host PC, using RF Simplicity®

and MS Visual Basic™.

Refer to Chapters 1 and 2 in this manual for more on basic operation of the Dolphin

terminal and accessories available.

802.11b-Compliant Dolphin 7200 RF Terminal

The 802.11b-compliant Dolphin 7200 RF incorporates a Cisco® 802.11b Micro-ISA

radio. The radio uses direct sequence spread spectrum (DSSS) technology, which

spreads its signal continuously over a wide frequency band, and provides an Ethernet-

like data rate of up to 11 megabits per second. The radio may also provide up to 128-

bit Wired Equivalent Privacy (WEP) encryption. WEP is used to encrypt and decrypt

data signals transmitted between Wireless LAN (WLAN) devices. It is an optional

security encryption mechanism defined within the 802.11 standard that makes a

wireless LAN link as secure as a traditional wired link. The optional WEP security

mechanism is available with 128-bit or 40-bit encryption.

Dolphin 7200 RF is interoperable with other 802.11b-compliant products to

allow network expansion as needed. It can be connected to other devices, such as

printers and PCs via PC-card adapters.