Handling the Module
The Module can be easily damaged by electrostatic
discharge. To prevent damage, observe the following:
Always wear an anti-static wristband connected to a
suitable earth point.
Do not remove the Module from its packaging until
you are ready to install it into a Switch.
Do not touch any of the pins, connections or
components on the Module.
Handle the Module only by its edges and front panel.
Always store or transport the Module in anti-static
packaging.
Installing the Module
CAUTION: This Module is only designed to work with
the 3Com SuperStack 4 Switch 5500G-EI Family.
To install the Module:
1 Your Switch can be either powered-up or
powered-down.
2 Ensure that you are wearing an anti-static wristband
connected to a suitable earth point.
3 Undo the two captive thumbscrews securing the blank-
ing plate at the front of the Switch. Do not remove any
other screws from the front of the Switch.
4 Remove the blanking plate.
5 Keep the blanking plate in a safe place. If you remove
the Module at any time, you must replace the blanking
plate to prevent dust and debris entering the Switch and
to help the circulation of cooling air.
6 Hold the Module so that the text on the front panel is
upright. Insert it into the Switch, pushing firmly to
ensure the Module is seated correctly so that the front
panel is flush with the front of the Switch. Tighten the
two captive thumbscrews securing the Module with a
suitable tool.
7 If necessary, power-up your Switch.
Activating the Module
There is only one way in which a XENPAK transceiver
can be installed correctly into the Module. It is not
necessary to power down your Switch.
1 Insert one of the following XENPAK transceivers into the
port on the Module:
10GBASE-CX4 transceiver
Use this transceiver to connect the Module directly to
an 8 pair twinaxial copper cable terminated in IEC
61076-3-113 connectors (between 1m and 15m
supported).
10GBASE-ER transceiver
Use this transceiver to connect the Module directly to
a single-mode fiber-optic cable (up to 40km).
10GBASE-LR transceiver
Use this transceiver to connect the Module directly to
a single-mode fiber-optic cable (up to 10km).
To ensure optimal performance, compatibility, and
regulatory compliance, use only XENPAK transceivers
that 3Com supports. See “Approved XENPAK
Transceivers” on page 5.
2 Hold the XENPAK transceiver so that the text on the
transceiver is upside down and the module text is shown
upright. Insert the transceiver, inverted, into the module.
3 Slide the XENPAK transceiver into the XENPAK port on
the module, pushing firmly to ensure it is seated
correctly.
4 Tighten the two captive thumbscrews securing the
XENPAK transceiver with a suitable tool.
5 Remove the plastic protective cover if fitted.
6 Use an appropriate cable to connect the XENPAK
transceiver to a suitable device.
7 Check the LEDs on the front of the Switch and the front
of the Module to ensure that the Module is operating
correctly. Refer to “LEDs” on page 1 for more
information.
Removing the Transceiver
It is not necessary to power-down your Switch.
1 Disconnect the cable from the transceiver.
2 Pull the sleeve around connector towards you to release
the catch mechanism; the transceiver will then easily
slide out.
Removing the Module
It is not necessary to power-down your Switch.
1 Ensure that you are wearing an anti-static wristband
connected to a suitable earth point.
2 Undo the two captive thumbscrews securing the Module
into the Switch using a suitable tool. Do not remove any
other screws from the Switch.
3 Remove the Module.
4 If you are not fitting another Module immediately,
replace the blanking plate to ensure that dust and debris
do not enter the Switch and to help the circulation of
cooling air.
INSTALLATION AND REMOVAL
4
