CS - ISDN-4 - ISDN interface for CS8014

:·ISDN-4 - ISDN interface for CS8014/CS6015

GENERALS

The ISDN-4 Interface, here described, allows the CS8014/CS6015 to extend effectively toward the ISDN telephone terminals the functional testing. Especially it can operate on TE terminals (telephones) or on PABX connected through the S Bus.

By the ISDN-4 interface connected to CS8014/CS6015 Test Equipment will be possible to perform the functional tests listed on the following table.

Tests Performed

Calling and dialling of the subscriber number (TE mode).
Feedthrough selection in PABX.
Measure of acoustic level of the ringer.
Sensibility, Frequency Response and Loudness Rating for Sending and Receiving tests.
Talker Sidetone (STMR).

ISDN-4 Interface can be represented as in the following block diagram.

Power supply for ISDN-4 is supplied from CS8014/CS6015.
ISDN line feeding voltage is also supplied from CS8014/CS6015, if required.

All the controls for the Interface setup are made using the CS8014/CS6015 Actuators Programmable Relays contacts.
ISDN-4 can be set either as TE (Terminal Equipment) or NT (Network Termination). It works with both the A (Europe) and m (USA) PCM laws.

ISDN-4 Interface have a built-in DTS (Digital Test Signal) generator, certifiable, by which the User can simply calibrate the transfer characteristic in both the directions D/A and A/D.

The design of the ISDN-4 Interface follows the requirements of the Standard ETSI - CTR8 - Appendix 1, so it is effectively useful for testing, characterization and approvals of Digital Telephone Terminals.

For further information, please contact our Sales Department .

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