Robotics COURIER Informações Técnicas descarregar pdf (Página 12)

Introduction 1-3

communicate on the ISDN at speeds of up to 64 kbps.

Optional Built-in NT-1

The I-modems with Integrated NT-1 contain an on-board NT-1, sparing you

the expense and extra cabling associated with an external NT-1.

Optional Analog Device Jack

The I-modem with Integrated NT-1 and Analog Device Jack allows you to plug

in an analog telephone, fax machine, or modem, allowing analog devices

to communicate over an ISDN B-channel. This applies to external units

only.

TurboPPP

TurboPPP is U.S. Robotics’ unique combination of asynchronous-

to-synchronous PPP conversion, compression, multilink PPP (ML-PPP).

You can use TurboPPP to access the Internet or remote local-area

networks (LANs) at speeds of up to 128 kbps before compression and up

to 512 kbps with compression.

Rate Adaptation

The I-modem’s support of the V.120 and V.110 protocols allows it to map

slower-speed asynchronous data to the 64-kbps B-channel. The

I-modem’s rate adaptation capability spans the range of 300 to 57600 bps.

Central Office Switch Compatibility

Works with AT&T 5ESS and Northern Telecom DMS-100 switches that

run either their custom protocols or National ISDN-1, as well as with

other manufacturer’s switches that use National ISDN-1 or National

ISDN-2 call control signaling (ITU-T Q.931/I.451 call control signaling).

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Robotics COURIER Informações Técnicas Página 12