Cabletron Systems 3H08-04 manual Overview, 1.3 3H02-04 FE SWITCH MODULE

Overview

1.2 OVERVIEW

Cabletron Systems Fast Ethernet Switch Modules connect the ATX hub to a maximum of four individual Ethernet IEEE 802.3 Local Area Networks (LANs). Through the ATX backplane, connectivity to other Fast Ethernet devices, as well as connectivity to FDDI, Token Ring, and Ethernet networks is supported. You can configure the module to support Transparent Spanning Tree, Source Routing, or Source Routing Transparent Bridging on each of the FDDI, Token Ring, or Ethernet ports of the ATX. The ATX is also able to translate higher level protocols to allow communications between end-nodes on Ethernet and end-nodes on FDDI or Token Ring; protocols translated include TCP/IP, Novel NetWare, and AppleTalk Phase II.

The switch modules include processing circuitry for receiving and forwarding data packets between the connected devices. Each module contains an offline button as well as several light emitting diodes (LEDs) that indicate the operational status of the module and the individual ports.

You can install the switch modules in any of the five interface slots of the ATX. Each switch module provides connectivity to four distinct 100 Mb LANs.

1.3 3H02-04 FE SWITCH MODULE

The 3H02-04 (Figure 1-2) provides connection for four independent 100BASE-TX LANs to the ATX backplane and packet processing engine (PPE). It includes processing circuitry for receiving and forwarding packets between the connected 100BASE-TX LANs within each module. The 3H02-04 contains several LEDs to indicate the module’s operational status. Each segment has link test enabled and supports receive pair polarity reversal detection and automatic correction.

The 3H02-04 supports unshielded twisted pair (UTP) and IEEE 802.3 100BASE-TX specification.

FE Switch Module User Guide Page 1-3