Cisco 1401 - 1401 Router - EN Uživatelský manuál stáhnout pdf (Strana 5)

Overview 1-5

Technology Overview

• “Plain old telephone service” (POTS)—Basic telephone service.

• POTS splitter—A device (or one part of a larger device) that enables both an ADSL data

device (for example, a Cisco 1400 series router) and a standard analog device (such as

a telephone) to share the same ADSL line. For information on the type of POTS splitter

to use with your router, contact your service provider or Cisco reseller.

• SNMP—Simple Network Management Protocol

Technology Overview

An ADSL line is a DSL that transfers data from the telephone central ofﬁce to the user

much faster than the user sends data to the telephone central ofﬁce. ADSL is ideal for

applications such as high-speed Internet access and video-on-demand, in which the server

sends much more data than the client sends. Internet users, in general, download more

information from the Internet than they upload.

One of the key features of ADSL is that it operates over existing standard telephone wires,

enabling simultaneous voice and data transmissions over the same telephone line.

ATM over ADSL

The Cisco 1400 series routers use ATM over ADSL to transfer data to and from remote

networks, such as an ISP or corporate network.

By using ATM, the router can maintain a communication session with the remote location

until the session ends. A continuous connection results in a higher quality of service than

that of many other data protocols.

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Cisco 1401 - 1401 Router - EN Uživatelský manuál Strana 5