Robotics COURIER Technické informace stáhnout pdf (Strana 19)

2-4 Courier I-modem Getting Started Guide

Required Components

BRI-line signals must be translated into signals your computer can

understand. Several devices must be in place to perform the translation.

This Is a device

TE2

(Terminal Equipment 2)

That does not have built-in ISDN capability.

TE2s require Terminal Adapters (TAs),

such as the I-modem, to communicate over

the ISDN. Example: Computer.

(Terminal Adapter)

That translates between non-ISDN signaling

that TE2s provide (such as EIA-232) and the

S/T-interface signaling that the NT-1

understands.

NT-1

(Network Termination

[Unit] -1

That ranslates between the short-distance

signaling used at the S/T-interface and the

longer-distance signaling used at the

U-interface. NT-1s also convert from the

two wires used for the phone line to the six

or eight wires needed for the S/T bus.

How Does the I-modem Fit In?

The I-modem needs an NT-1 device to work with ISDN. If you currently

use an NT-1 device, you can use the S/T-interface I-modem.

This version of I-modem Allows the I-modem to connect

U-Interface Integrated NT-1 Directly to the U-interface

S/T-Interface To an external NT-1 device (you must

have an NT-1 device)

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Robotics COURIER Technické informace Strana 19