User`s manual

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EAGLE

Multi-Standard Dual-Channel Digital Audio Codec

4.6. Terminal adapter configuration.

The EAGLE can be connected to EUROISDN (European ISDN) or NATIONAL-1 (American

ISDN) through a U interface (ANSI) or S interface (ETSI) at 64 or 128kbps and can be

connected to an external terminal adapter through the V35 port at 64, 128 or 256kbps.

These features make it possible for the EAGLE to be functional in many countries around the

world.

V35 Interface. The selection of the terminal adapter speed (bit-rate) is done automatically, as

the EAGLE detects whether the external TA provides a 64k, 128k or 256k clock.

It is possible to configure DCD signal operation and set default speed between 64kbps,

128kbps and 256kbps.

The V35 interface can be used to connect the EAGLE to an external ISDN Terminal Adaptor

that supports other protocols apart from EUROISDN and NATIONAL-1, or it can be used to

connect to a leased point-to-point digital 64, 128 or 256kbps link.

U Interface. This 2-wire interface (RJ11) is commonly used in NATIONAL-1 protocol, which is

the most widespread protocol in the USA. In this case, Network Terminal (NT1) is included

inside the EAGLE.

S Interface. This 4-wire interface (RJ45) is commonly used in EUROISDN protocol, which is

the most widespread protocol in European countries. In this case, the ISDN service provider

installs the external Network Terminal (NT1).

 In order to cover all possibilities, it is possible to connect either of the two ISDN interfaces

with either of the two ISDN protocols available.

TA configuration menu diagram

TA CONFIG INTERFACE S

V35

INTERFACE U

CONNECTION

DEFAULT RATE

DCD CONTROL

PERMANENT

128K

256K

64K

NUMBER LINE 2

NUMBER LINE 1

PROTOCOL

TEI MODE

EURO ISND

NATIONAL-1

DINAMIC

FIXED (0)