Cisco 1 Port E3 PA-MC-E3= データシート

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P O R T A D A P T E R S H E R A L D A N E W E R A F O R

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WA N

CONNECTIVITY

.

The family of multichannel interfaces decrease cost and increase

manageability of WAN links by:

• Eliminating the need for any external CSU/DSUs

or multiplexers

• Providing up to 128 software

configurable WAN connections per

single-wide port adapter

• Supporting both clear channel T1/

E1 connections and channelized

T1/E1 connections on the same

card

• Handling all major encapsulations

including ISDN and Frame Relay

With these capabilities, the family of

multichannel interfaces eliminate the

need for separate interface types for

separate connection types. At a cost

per

T1/E1 port less than that of a

standard serial port with external

CSU/DSU, Cisco’s family of

multichannel interfaces are

cost-effective for all WAN connectivity.

In Cisco’s multichannel interface family are versions

to support physical connectivity to T3 lines, E3 lines,

T1 lines and E1 lines. For direct termination to E3 lines,

Cisco’s multichannel E3 card

terminates 16 E1 lines multiplexed

onto a single 75 ohm G.703 E3

interface.

The 128 channels of this

multichannel E3 port adapter can

be allocated among clear channel

E1 links, Nx64K links, or ISDN PRI

links. For a single clear channel E1 link,

only one of the 128 channels

is consumed. For each Nx64K

connection, a single channel is

consumed. In channelized E1 mode,

multiple NxDS0 connections can be

supported on a single E1. Fractional E1

mode is also supported where Nx64K of

bandwidth consumes an entire E1 link.

Each E1 used as ISDN PRI consumes

either 30 channels respectively, one per

B channel and one for the D channel.