3com Hub 1000 SX Manual De Usuario

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2-8
C
HAPTER
 2: I
NSTALLING
 
THE
 H
UB
To install and connect a GBIC module, follow these steps:
Disconnect all power to the Hub 1000 SX.
Disconnect the AC power cord. If you are using an Advanced RPS unit, 
disconnect the RPS cable from the DC power connector.
Remove the GBIC module from its shipping container.
Slowly insert the module into the rear-panel uplink port, being careful not 
to damage any of the components or connecting pins.
The module slides into the hub following the tracks in the slot. The 
lettering that shows the module type must be positioned on top of the 
connector openings when the module is in place.
Push the module all the way in until the connector makes contact.
Reattach the power cord and any power system cable to the hub.
Attach the proper cable to the module to make the desired 
network connection. 
Both ends of the connection must be of the same media type (CX, LX, 
or SX).
Reconnect power to the hub.
Using Optional 
Power Systems
You can ensure fail-safe operation and constant power to SuperStack II 
components by using the SuperStack II Advanced Redundant 
Power System (Advanced RPS) and the SuperStack II Uninterruptible 
Power System (UPS). These units and associated Power Modules and 
cabling must be purchased separately.
Advanced RPS
A single SuperStack II Advanced RPS (part numbers 3C16070 and 
3C16071) can protect up to four SuperStack II Hub 1000 SX units from 
internal power supply failures. If a SuperStack II unit’s internal power fails, 
the Advanced RPS is capable of supplying all the unit’s power needs.
The Advanced RPS chassis is rack-mountable. It is fed by two independent 
AC lines and remains operational if one of the AC lines fails. The front panel 
provides LED indicators for monitoring temperature as well as power input 
and output status.