Eon Millennium User Manual download pdf (Page 14)

The Millennium is built upon two types of cards – control

and interface. The control cards consist of the System

Controller, Common Services Card in single cabinet

configurations, and the Concentrator Cards or Fiber

Interface Cards in multi-shelf or remote shelf configurations.

Millennium Interface Cards

Universal porting allows trunks and station cards to be

assigned in any vacant card slot up to a maximum of 16

cards per shelf.

• Digital Line Card

The Digital Line Card (DLC) provides eight S-loops,

each

with two 64 Kbps B-channels, and one 16 Kbps

D-channel.

Each B-channel can be used by a single

digital telephone or an ISDN data device, such as

a router, terminal adapter (TA), LAN bridge, or video-

conferencing system. Two talk paths (B-channels) can

give a single digital telephone the added capability of

Off-Hook Call Announce and circuit switched data via

a Data Adapter.

• 2-Wire Digital Station Card

The 2-Wire Digital Station Card (2WDSC) provides

16 2-wire U interfaces, with the ability to support one

terminal or telephone per interface. The card is designed

to connect to Millennium 2-wire digital telephones.

It can also be used

to connect to a Millennium 4-wire

telephone with a single

NT1 per U interface and to

standard ISDN terminal equipment

(an NT1 may be

required depending on the interface). The card also

supports Off-Hook Call Announce and circuit switched

data via a Data Adapter.

• U Interface Line Card

The ISDN U Interface Line Card (ULC) features

either four or eight U interfaces for connecting

a Millennium digital telephone or an ISDN

data device. The ULC can extend a digital

telephone up to three miles from a

Millennium system. Each U interface can

connect to an NT1, which will convert

the 2-wire U interface into two 4-wire

S interfaces identical to the S interface

on the Digital Line Card. The ULC

supports up to 16 digital telephones.

The ULC also provides an ideal means

of connecting ISDN U interface data

devices, such as terminal adapters,

routers, and videoconferencing

systems.

1122

Digital Line Card.

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