9.
Technical
Specification
AirLive POE-260CAM User’s Manual
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Router -
A device that determines the next network point to which a packet should be forwarded
on its way to its final destination. A router creates and/or maintains a special routing
table that stores information on how best to reach certain destinations. A router is
sometimes included as part of a network switch. See also
switch
.
Server -
In general, a server is a computer program that provides services to other computer
programs in the same or other computers. A computer running a server program is also
frequently referred to as a server. In practice, the server may contain any number of
server and client programs. A web server is the computer program that supplies the
requested HTML pages or files to the client (browser).
Sharpness -
This is the control of fine detail within a picture. This feature was originally introduced
into color TV sets that used notch filter decoders. This filter took away all high
frequency detail in the black and white region of the picture. The sharpness control
attempted to put some of that detail back in the picture. Sharpness controls are mostly
superfluous in today's high-end TVs. The only logical requirement for it nowadays is on
a VHS machine.
Simplex -
In simplex operation, a network cable or communications channel can only send
information in one direction.
SMTP (Simple Mail Transfer Protocol) -
SMTP is used for sending and receiving e-mail. However, as it is "simple," it is limited
in its ability to queue messages at the receiving end, and is usually used with one of
two other protocols, POP3 or IMAP. These other protocols allow the user to save
messages in a server mailbox and download them periodically from the server.
SMTP authentication is an extension of SMTP, whereby the client is required to log into
the mail server before or during the sending of email. It can be used to allow legitimate
users to send email while denying the service to unauthorized users, such as
spammers.
SNMP (Simple Network Management Protocol) -
SNMP forms part of the Internet Protocol suite, as defined by the Internet Engineering
Task Force. The protocol can support monitoring of network-attached devices for any
conditions that warrant administrative attention.
