Novatel Minstrel 540, Руководство пользователя

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Minstrel 540
TM
User Guide Version 1
GU-01016914
Glossary A-Pp
auto power-off
Auto power-off is a feature of the Minstrel 540 that, when enabled, will cause the modem
to de-register and power off whenever the active PPP session is closed.
CDPD
CDPD, or Cellular Digital Packet Data, is a Wireless IP technology developed for use on
cellular phone frequencies. CDPD uses unused cellular channels to transmit data in pack-
ets. To send and receive data across the Internet, the Minstrel 540 must first register to
the CDPD network.
channel
The range of Wireless IP frequencies used to transmit and receive data is broken up into
channels, which act as individual paths for communication. Each of these channels is
assigned a number.
de-registration
De-registration involves disconnecting and closing the communication path being used on
the CDPD network. When the modem is de-registered, it can no longer send or receive
data across the network.
Equipment Identifier (EID)
Every Wireless IP modem manufactured has a unique serial number associated with it,
which is referred to as the Equipment Identifier or EID. Each EID consists of six sets of
two hexadecimal numbers that are often separated by a period (“.”), as in the sample EID
00.60.D6.04.BC.FE.
IP address
As with personal computers that access the Internet, modems using CDPD technology
also have a static Internet Protocol (IP) address, which is used to identify the node or
access point for the modem on the Internet. The service provider assigns this IP address.
ping
PING stands for Packet Internet Groper and is a utility used to determine if a specific IP
address is accessible. It works by sending a packet of data to the IP address in question
and waiting for a reply.
PPP session
PPP, or Point-to-Point Protocol, is a method of connecting a device to the Internet. In
order for the Minstrel to send and receive information across the Internet, a PPP session
must first be established. A session is automatically opened when the modem registers to
the network.