Cabletron Systems 2H28-08R Manual Do Utilizador

 

The 2H28-08R may be used as a tabletop unit or can be installed in a 
standard 19-inch rack using the supplied rack mounting hardware.

The 2H28-08R has two power supplies. Both are universal ac 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.

 

The six fixed ports on the 2H28-08R connect to Ethernet networks or 
workstations using SC fiber optic connectors. 

The 2H28-08R has two front panel slots (ports 7 and 8) for optional Fast 
Ethernet Interface Modules to support an uplink to 100 Mbps Fast 
Ethernet backbones, a high speed connection to a local server, or a 
connection to 10BASE-T. 

 

The 2H28-08R provides traditional switching (IEEE 802.1D bridging), 
IEEE 802.1Q, or SecureFast Switching Virtual Network Services between 
all of the front panel interfaces including the optional Fast Ethernet 
Interface Modules. SecureFast Switching and IEEE 802.1Q allow for 
migration to Virtual Network technologies without requiring the 
replacement of existing equipment.

 

All the ports for the 2H28-08R, including the optional modules, can be 
configured to operate in Full Duplex Switched Ethernet mode, which 
provides 200 Mbps of throughput.