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2E43-51 Overview
2E43-51/2E43-51R User’s Guide 1-3
1.3 2E43-51 OVERVIEW
The 2E43-51 (Figure 1-1) is a repeater/switch device that provides four
Ethernet networks (MicroLANs ENET 1 through 4), each consisting of
12 repeater ports that share a bandwidth of 10 Mbps. Each Ethernet
network supports 802.1D switching (bridging), and Cabletron Systems
SecureFast Switching Virtual Network technology.
Figure 1-1 The 2E43-51
The 2E43-51 also has two slots (5 and 6) for optional 10/100 Fast
Ethernet Interface Modules, and another slot for an optional High Speed
Interface Module (HSIM).
The device can switch each Ethernet network (ENET 1 through ENET 4)
to one another, to the optional interface modules in slots 5 and 6, and to
the HSIM slot. The optional Fast Ethernet Interface Modules provide
uplinks to 100BASE-TX or 100BASE-FX Fast Ethernet networks. The
HSIMs provide additional connectivity to various networking
technologies such as Asynchronous Transfer Mode (ATM), Fiber
Distributed Data Interface (FDDI), and Wide Area Network (WAN).
The 2E43-51 may be used as a tabletop unit or can be installed in a
standard 19-inch rack using the supplied rack mounting hardware.
The 2E43-51 device has one universal ac power supply with automatic
voltage sensing that allows operation using 100–125 or 200–240 Vac,
50/60 Hz.
2251-00
65
LINK 1
LINK 1LINK 1
LINK 1
12
12
12
12
ENET 1
ENET 3 ENET 4
ENET 2
E3
E1
E4
E2
2E43-51
COM
PWR
CPU
RESET
System LEDs
COM Port
RESET Button
Interface
Receive (RX)
Transmit (TX)
LEDs
Port LINK LEDs
(12 ports/MicroLAN)
MicroLANs
(ENET 1 - 4)
Optional HSIM Slot
Optional Fast
Ethernet Interface
Module Slots 5 & 6
Receive (RX)
Transmit (TX)
LEDs