Telephone Switch Support

ISDN Line Ordering and Configuration

Your telephone company may offer a variety of ISDN switch types. You must contact your service provider and ﬁnd out which type of ISDN service is available.

The following switch types are currently supported by the CSX400 within the U.S.:

•National ISDN 1 (NI-1)

•AT&T 5ESS with Custom Software

•DMS-100

Outside of the U.S. the following switch types are currently supported:

•NET3 (European ISDN)

•NET3SW (European Swiss-variant)

•NTT (Nippon Telegraph and Telephone)

•KDD (Kokusai Denshin Denwa Co., Ltd.)

•French Delta (VN4) switches

ISDN BRI Line Conﬁguration

You need to order one Basic Rate Interface (BRI) ISDN line from your service provider. The Basic Rate Interface ISDN line provides two full duplex 64 (Kbps) B channels used for voice, data, fax, etc. and one full duplex 16 Kbps channel used for signaling. Each B channel can be used for a call; i.e., two calls can occur at the same time. Services vary from individual service providers.

NOTE

Full 64 Kbps for each channel (called clear channel) may not be available across the entire communications link. Today, many providers still use in-band signaling

(the 8 Kbps signaling is taken from the B channel bandwidth) so that you may only achieve a 56 Kbps channel speed.

The service provider requires some information from you about your conﬁguration. You must provide your service provider with the required switch settings for the provider’s telephone switch (see Telephone Switch Parameters in this chapter). Consult with your service provider at least two months before requiring the installation and use of the ISDN service.

24 CSX400 and CSX400-DC User’s Guide

CSX400-DC, CSX400 specifications

Cabletron Systems was a leading developer of networking solutions, and its CSX400 and CSX200 series of high-performance switches represent some of the key innovations in the field of enterprise networking during their time. Both models were geared towards enhancing network reliability, efficiency, and speed, particularly in environments where heavy data traffic and complex networking demands were prevalent.

The CSX400, designed for larger enterprises, boasts a robust architecture capable of handling significant throughput. One of its standout features is its stackable design, allowing multiple switches to be interconnected and managed seamlessly as a single unit. This scalability provides organizations with the flexibility to expand their networks without significant infrastructure overhauls. The CSX400 supports various Ethernet standards, including 10/100 Ethernet and Gigabit Ethernet, positioning it to effectively manage both legacy and modern networking requirements.

In addition to its scalability, the CSX400 is distinguished by its advanced Layer 2 and Layer 3 routing capabilities. This dual-layer functionality enables efficient data handling and is instrumental in managing traffic between different network segments. Moreover, the switch incorporates features like VLAN (Virtual Local Area Network) support and Quality of Service (QoS) prioritization, allowing for enhanced performance of critical applications and streamlined bandwidth allocation.

On the other hand, the CSX200 series is tailored for smaller enterprises or branch offices needing a reliable yet efficient networking solution. Despite its compact design, the CSX200 is equipped with essential features that promote effective network management and security. It offers a simplified management interface, making it user-friendly for network administrators. The switch also provides essential access control measures, employing technologies like IEEE 802.1X for network access security.

Both the CSX400 and CSX200 prioritize performance through the incorporation of advanced switching technologies. They support features such as Spanning Tree Protocol (STP), enabling loop-free topologies and enhanced network resilience. These attributes are particularly crucial in dynamic networking environments where downtime can have significant repercussions on business operations.

Overall, Cabletron Systems' CSX400 and CSX200 series represent a blend of scalability, advanced routing capabilities, and user-friendly management, making them vital assets for organizations looking to optimize their network infrastructure during a period of rapid technological evolution. With their rich feature sets and unwavering performance, these switches helped pave the way for modern networking solutions that cater to diverse enterprise needs.

Cabletron Systems CSX400-DC manual Telephone Switch Support, Isdn BRI Line Conﬁguration

Models: CSX400-DC CSX400