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20 USING THE HUB: Hub Installation
• full hub monitoring capabilities using the npsh command set,
• remote network management via private MIBs: the M208’s private MIB file
contains all the variables and traps required to manage the hub using an SNMP
manager,
Hub Installation
You can use any of the network ports to connect the M208 to computers, to other
hubs/backbone, or to other Data Terminal Equipment (DTE).
Connectors
The M208 has 9 network connectors: eight 10Base-T (RJ45) connectors, and one AUI
connector.
Cable Requirements for Connecting to the Backbone or to Other Hubs
To connect the M208 to the backbone or to another hub, a crossed-over cable is
required unless port #1 is used, then a straight through cable can be used as long as the
switch next to the port is set accordingly. By default, the switch is set to accept a
straight-through cable.
Cabling Requirements for Connecting to DTE’s
To connect other DTE’s to the M208, a straight-through cable is required unless port
#1 is used, then a crossed-over cable can be used as long as the switch next to the port
is set accordingly.
For the pinouts of the twisted-pair cable, please see Twisted-Pair Cable Pinouts on
page 21. For the pinouts of the AUI cable, please see THICK (Transceiver) Connector
Pinouts on page 180.
Port #1 is the only port that can be set (using the external switch) to accept either a
crossed-over or straight-through cable. Ports #2-8 are internally crossed-over.
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