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Ethernet RF
Introduction
For more information on Symbol
RF, see www.symbol.com, or for
Telxon see www.telxon.com, or for
Aironet® see
www.aironet.com
the world wide web.
The 802.11 Standard for wireless
local area networking.
The IEEE 802.11 standard supports
transmission in infrared light and
two types of radio transmission
within the unlicensed 2.4GHz
frequency band: Frequency
Hopping Spread Spectrum (FHSS)
and Direct Sequence Spread
Spectrum (DSSS).
The Mercury-PC supports the
following technologies:
Symbol® Spectrum24 802.11 FH
Symbol® Spectrum24
Aironet™/Telxon 2.4 TMA
Aironet™/Telxon 802.11 DS
Radio Manufacturer's Notes and
Recommendations
•
Do not touch or move the RF
antenna while the unit is
transmitting or receiving.
•
Keep the radio antenna away
from any exposed parts of the
body, especially the face or
eyes, while transmitting.
•
Do not operate a portable
transmitter near unshielded
blasting caps or in an
explosive environment unless
it is a type especially qualified
for such use.
•
Do not operate the radio or
attempt to transmit data unless
the antenna is connected. If
the antenna is not connected,
the radio may be damaged.
The Model 8461 Ethernet scales are available with the Mercury-PC PCMCIA Ethernet to
Wireless Adapter. The Mercury-PC will accept PCMCIA radios, such as Symbol
®
Aironet™/Telxon.
The Mercury-PC supports a radio frequency receiver/transmitter that communicates
on
through the store's Access Point via radio waves. The Mercury-PC connects to the
scale's Ethernet jack and converts the Ethernet signals to radio signals. The store Access
Point then converts the radio signals back into standard Ethernet signals for
transmission on the wired network. The Access Point may forward this information to
another wireless device or it may be connected to a token ring network.
Ethernet Port
Only the Symbol® 802.11 radio supports bridging of multiple Ethernet devices. When
the STEM is installed in an Ethernet Client, it will require multiple IP addresses which
only the Symbol® supports. Refer to the configuration section for information on the
Symbol® 802.11 network. If the radio will not support multiple devices, the STEM must
be installed in a TNET satellite.
Power Supply
Jack
Serial Port
Setup Switch
Serial Activity
Green blinking indicates
active data through the
serial port.
Mercury-PC PCMCIA Radio Adapter
Capítulo 3: Configuración de la unidad
Power LED
Green = Power ON
Red = Error, check system log.
Wireless Link
Green - normal).
Red = active radio transmission.
Ethernet Link to Scale
Green = Normal.
Red = Communication
in progress.
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Ethernet RF
®
and
3-25
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