Specifications

X-2000 General Information Guide

Revision A 5000309

• CEPT Links: The system supports MSDN/DPNSS, DASS II (UK only), and Italian CAS

(Italy only) protocols.

The SX-2000 LIGHT system connects to CEPT links by using a CEPT Formatter or CEPT

Formatter II card.

• BRI Links: The BRI card supports Euro-ISDN 2B+D, Basic Rate, or North American

National ISDN-1 and ISDN-2 protocols.

The SX-2000 LIGHT system connects to BRI links by using a

BRI card. The BRI link can

be either User or

Network Termination (for European installations only).

• PRI Links: The

PRI card and the ISDN Network Gateway support DMS-100, DMS-250,

Bellcore National ISDN, 4ESS, NI-2, 5ESS NI-2, Q.SIG and Euro-ISDN (CTR4) protocols.

The SX-2000 LIGHT system connects to PRI links by using a

PRI card or an ISDN Network

Gateway.

• R2 Links: The R2 card supports the CCITT Blue Book, Volume VI, Fascicle VI.4, Speci-

fications of Signaling System R2, Recommendations Q.440 to Q.490 (with the exception

of Echo Suppression (Q.479), Test Calls (Q.490) and international signals).

The SX-2000 LIGHT system and SX-2000 MICRO LIGHT system connect to the R2 links

using an

R2 card.

The following analog trunks are supported:

• Analog CO Trunks interface to the system through the

Loop Start/Ground Start (LS/GS)

trunk card

• E&M Trunks interface to the system through the

E&M trunk card (which can be configured

for either 2-wire or 4-wire operation). This card supports Type I through Type V circuits.

• Direct Inward Dial and Tie Trunks interface to the system through the DID/Loop Tie trunk

card, AC15 trunk card, DID/2 trunk card, or DID/3 trunk card (depending on local

requirements).