3Com Hub 1000 SX manual Using Optional, Power Systems

2-8CHAPTER 2: INSTALLING THE HUB

To install and connect a GBIC module, follow these steps:

1Disconnect 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.

2Remove the GBIC module from its shipping container.

3Slowly 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.

4Push the module all the way in until the connector makes contact.

5Reattach the power cord and any power system cable to the hub.

6Attach 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).

7Reconnect power to the hub.

Using Optional	You can ensure fail-safe operation and constant power to SuperStack II
Power Systems	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.