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Terminology
RJ-11 (Registered Jack Standard-11)
The standard plug used to connect telephones, fax machines,
modems, etc. to a telephone jack. It is a 6-pin connector usually
containing four wires.
RJ-45 (Registered Jack Standard-45)
The 8-pin plug used in transmitting data over phone lines.
Ethernet cabling usually uses this type of connector.
routing
Forwarding data between your network and the Internet on the
most efficient route, based on the data's destination IP address
and current network conditions. A device that performs routing
is called a router.
rule
See filtering rule, NAT rule.
SDNS (Secondary Domain Name System (server))
A DNS server that can be used if the primary DSN server is not
available. See DNS.
SNMP (Simple Network Management Protocol)
The TCP/IP protocol used for network management.
splitter
A device that splits off the voice component of the DSL signal
to a separate line, so that data and telephone service each
have their own wiring and jacks. The splitter is installed by your
telephone company where the DSL line enters your home.
The CO also contains splitters that separate the voice and data
signals, sending voice to the PSTN and data on high-speed lines
to the Internet. See also CO, PSTN, splitterless, microfilter.
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