Comcam ComCam-10 series, Руководство пользователя, Страница: 23 / 36

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Networking Characteristics
For owners/users of compatible Wireless WiFi LAN cards:
Compatibility IEEE 802.11 Standard for Wireless LANS (DSSS)
Wi-Fi (Wireless Fidelity) certified by the Wireless Ethernet Compatibility Alliance (WECA).
Media Access Protocol
CSMA/CA (Collision Avoidance) with Acknowledgment (ACK)
Data Rate
High
11 Mb/s
Medium 5.5 Mb/s
Standard 2MB/s
Low 1 Mb/s
ComCam-10 uses an automatic Transmit Rate Select Mechanism.
Radio Characteristics
Radio characteristics of the ComCam -10 802.11b may vary according to the country
where the product was purchased. Wireless communication is often subject to local
radio regulations. Although ComCam-10 wireless networking products have been designed for
operation in the license-free 2.4 GHz band, local radio regulations may impose a number of
limitations to the use of wireless communication equipment.
To comply with such regulations, the ComCam-10 802.11b is marketed with dedicated channel-sets
with a number of factory-programmed channels identified by the following acronyms:
ETS for countries that adhere to the regulations as defined by
the European Telecommunications Standards Institute (ETSI).
FCC for countries that adhere to the regulations as defined by the
US Federal Communications Commission (FCC). FR for France, and JP for Japan.
To comply with such regulations, ComCam offers two types of ComCam-10s:
In countries that adhere to the FCC regulations, you can use the standard black-colored
ComCam-10.In countries that adhere to the ETSI regulations, including France and Japan,
you must select the card-type based upon the antenna that will be used:
You can use the black-colored ComCam-10 when connecting the device to standard
ComCam-10 omni-directional antennas. You must use the red-colored IEEE Fixed Wireless
PC Card when connecting the device to the standard Lucent Technologies 14 dbi
directional antenna for outdoor use.
When you ordered the Outdoor Router kit for outdoor antenna installations (purchased separately),
your kit includes the correct card type that complies with the regulations that apply in your country.
WARNING:
At all times it will be the responsibility of the end-user to ensure that an outdoor antenna
installation complies with local radio regulations. The end-user must verify that:
The antenna installer is aware of these regulations.
The correct type of PC card is used to connect the host device to the outdoor antenna installation.
ComCam and its resellers or distributors are not liable for any damage or violation of
government regulations that may arise from failing to comply with these guidelines.
Radio Characteristics ComCam-10 802.11b
The range of the wireless signal is related to the Transmit Rate of the wireless communication.
Communications at lower Transmit range may travel larger distances.