10BASE2 Coaxial Cable Network

Ethernet Cabling Requirements

Length — If your network meets all system budgets, the maximum single mode ﬁber optic cable length can reach 5 km (3.1 miles) with bridges or switches at each segment end. The FOIRL speciﬁes a maximum of 1 km (0.62 miles).

When connecting a thin coaxial cable segment to the CSX400 (using an EPIM-C), ensure that your network meets the following requirements:

Cable Type — Use only 50-ohm RG 58A/U type coaxial cable for thin coaxial cable segments.

Length — The thin coaxial cable segment must not exceed 185 meters.

Terminators — Terminate each end of a thin coaxial cable segment.

Connectors — You can use up to 29 T-connectors throughout the length of the cable segment for host connections. Ensure that all connections are spaced 0.5 meters or more from one another or from terminators.

If you use an excessive number of barrel connectors within the cable segment (e.g., ﬁnished wall plates with BNC feed-throughs), you may need to reduce the number of host connections. For special network design information, contact Cabletron Systems Technical Support.

Grounding — For safety, ground only one end of a thin coaxial cable segment. Do NOT connect EPIM BNC ports to earth ground.

Connecting a thin coaxial cable segment to earth ground at more than one point could

!produce dangerous ground currents.

CAUTION

Transceiver Requirements

When you connect an external network segment to an EPIM-A in your CSX400 through a transceiver, that transceiver must meet IEEE 802.3 standards or Ethernet version 1.0 or 2.0 requirements. The transceiver must also have SQE disabled.

CSX400 and CSX400-DC User’s Guide 53

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 10BASE2 Coaxial Cable Network, Transceiver Requirements

Models: CSX400-DC CSX400