Cabletron Systems 2H33-37R User Manual

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Overview
2H23-50R/2H33-37R User’s Guide
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The 2H23-50R is a high speed network repeater/switch device that 
provides four Ethernet networks and four Fast Ethernet networks (RJ21 
MicroLANs, CONN 1 through CONN 4) and two slots (5 and 6) for 
optional Fast Ethernet Interface Modules. The RJ21 connectors each 
consist of 12 repeater ports that are able to reside on the Ethernet 
(10 Mbps) or the Fast Ethernet (100 Mbps) network. Each Ethernet and 
Fast Ethernet network supports 802.1D switching (bridging), Cabletron 
Systems SecureFast Switching Virtual Network technology and IEEE 
802.1Q Port Based Virtual Local Area Networks (VLANs). Slots 5 and 6 
support Fast Ethernet Interface Modules to provide uplinks to 
100BASE-TX or 100BASE-FX Fast Ethernet Networks.
The 2H33-37R is a high speed network repeater/switch device that 
provides three Ethernet networks and three Fast Ethernet networks (RJ21 
MicroLANs, CONN 1 through CONN 3) and one slot for an optional 
High Speed Interface Module (HSIM). The RJ21 connectors each consist 
of 12 repeater ports that are able to reside on the Ethernet (10 Mbps) or 
the Fast Ethernet (100 Mbps) network. Each Ethernet and Fast Ethernet 
network supports 802.1D switching (bridging), Cabletron Systems 
SecureFast Switching Virtual Network technology and IEEE 802.1Q Port 
Based Virtual Local Area Networks (VLANs). The 2H33-37R can be 
equipped with an optional HSIM to provide additional connectivity to 
other high speed networking technologies such as Asynchronous Transfer 
Mode (ATM), Fiber Distributed Data Interface (FDDI), and Wide Area 
Network (WAN).
The device may be used as a tabletop unit or can be installed in a standard 
19-inch rack using the supplied rack mounting hardware.
The 2H23-50R and 2H33-37R have two power supplies with automatic 
voltage sensing that allows operation using 100–125 or 200–240 Vac, 
50/60 Hz. The power supplies load share 50% (+/-5%) of the power 
required by the device. If one power supply fails, the remaining power 
supply assumes the entire load of the device without interruption to 
network traffic. Each power supply module supports its own ac input 
connection, which allows the user to connect each power supply to a 
different ac power circuit.