NEC NDA-24311 Manuale Utente

NEAX2400 IPX ISDN Features and Specifications

Page 52

NDA-24311, Issue 1

This feature enables data communication between two NEAX2400 IPX, through PRI over Digital Line Link
(ISDN). The ISDN link can be accessed through various connections.

The following figure illustrates a typical Modem-to-Modem connection.

1.

An analog telephone user with a modem dials a remote extension, which also has a modem.

2.

The remote modem rings and is manually or automatically answered.

3.

The remote modem returns answer tone (modem tone).

4.

Both modems exchange carrier signals.

5.

A data communications path is established.

ISDN

Sync. or Async.

Modem

Analog
Station

DTE

16LC

PRI

NEAX2400 IPX

Sync. or Async.

Modem

Analog
Station

DTE

16LC

PRI

NEAX2400 IPX