About the CSX400

•The WPIM-Sync provides a synchronous serial connection of up to 2.048 Mbps to external communications equipment (e.g., a multiplexer or CSU/DSU). The WPIM-Sync uses a subminiature 26-pin connector that supports the electrical signal interfaces listed below. Appendix B, provides complete part number and cable pinout information for the following electrical signal interfaces:

•EIA-RS449

•V.35

•EIA-RS232D

•X.21

•EIA-RS530

•EIA-530A

•RS530 ALT A

•RS530A ALT A

•The WPIM-DDS provides a 56 Kbps or 64 Kbps Digital Data Service (DDS) connection. The WPIM-DDS supports remote CSU diagnostic or 64 Kbps clear channel loopback and non-latching remote DSU diagnostic loopback.

•The WPIM-E1 provides an E1 interface through a front panel RJ45 port and includes a built-in CSU/DSU for direct connection to an E1 line. The WPIM-E1 provides both Full E1 or Fractional E1 using 56 or 64 Kbps Time Slots with a total throughput of up to 2 Mbps.

•The WPIM-DI provides a T1 interface through a front panel RJ45 port and includes a built-in CSU/DSU for direct connection to a T1 line. The WPIM-DI provides both Full T1 or Fractional T1 using 56 or 64 Kbps Time Slots and also provides a second Drop-and-Insert interface, which allows more than one device, such as a PBX, to share a single T1 connection.

•The WPIM-S/T provides an Integrated Services Digital Network (ISDN) 128 Kbps Basic Rate Interface (BRI) for the CSX400. The WPIM-S/T provides an ISDN back-up link for a remote site or branch office when the main WPIM for a frame relay or leased line loses a connection or becomes disabled. An NT-1 adapter is necessary for this interface in the United States.

•The WPIM-HDSL provides a connection for users in a campus environment, or have access to local subscriber loops, who want to send their data over their existing telephone lines, that may run between floors, buildings, or other physical structures, at rates of up to 1.544Mbps. HDSL supports line lengths of up to 3, 657 meters (12,000 feet) over 24 American Wire Gauge (AWG) Unshielded Twisted Pair (UTP) cabling.

6 CSX400 and CSX400-DC User’s Guide

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Cabletron Systems CSX400-DC manual About the CSX400
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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.
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