Справочник Пользователя для 3com DUA1771-0AAA01
Installing the Module into a Switch
CAUTION: This Module is not hot-insertable or
hot-swappable. Always make sure that the Switch is
powered down and disconnected from the mains before
installing or removing a Module. Use the following
instructions when installing or removing a Module.
hot-swappable. Always make sure that the Switch is
powered down and disconnected from the mains before
installing or removing a Module. Use the following
instructions when installing or removing a Module.
CAUTION: This Module is only designed to work with
the 3Com SuperStack 3 Switch 4900 series.
the 3Com SuperStack 3 Switch 4900 series.
To install the Module:
1 Ensure that the Switch is disconnected from the mains
power supply and that you are wearing an anti-static
wristband connected to a suitable earth point.
wristband connected to a suitable earth point.
2 Place the Switch on a flat surface. Using a suitable
screwdriver, remove the blanking plate from the rear of
the Switch. Do not remove any other screws from the
rear of the Switch.
the Switch. Do not remove any other screws from the
rear of the Switch.
3 Keep the blanking plate and screws 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 aid the circulation of cooling air.
the blanking plate to prevent dust and debris entering
the Switch and to aid the circulation of cooling air.
4 Hold the Module so that the text on the front panel is
upright, and insert it into the Switch, ensuring the back
panel is flush against the back of the Switch. Tighten
the three captive thumbscrews securing the Module with
a suitable tool.
panel is flush against the back of the Switch. Tighten
the three captive thumbscrews securing the Module with
a suitable tool.
5 To activate the Module:
a Ensure that the Switch is powered-up.
b Remove the protective plastic covers from the fiber
connections on the Module.
c Plug the MT-RJ connector on the fiber cable into the
fiber port on the Module.
d Connect the other end of the fiber optic cable to a
device fitted with a 1000BASE-SX Gigabit Ethernet
connection.
connection.
6 Check the LEDs on the front of the Switch and the rear
of the Module to ensure that the Module is operating
correctly. Refer to “LEDs” below for more information.
correctly. Refer to “LEDs” below for more information.
Removing the Module from a Switch
1 Ensure that the power supply and the fiber backbone
connection cables are disconnected from the Switch.
2 Place the Switch on a flat surface. Undo the three
captive thumbscrews securing the Module into the
Switch. Do not remove any other screws from the
Switch.
Switch. Do not remove any other screws from the
Switch.
3 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 aid the circulation of
cooling air.
do not enter the Switch and to aid the circulation of
cooling air.
LEDs
You can gather information about the status of the
Module and its packet activity using the Expansion
Module LEDs on the front of the Switch and the Port
LEDs on the rear of the Module.
Module and its packet activity using the Expansion
Module LEDs on the front of the Switch and the Port
LEDs on the rear of the Module.
I
NSTALLATION
A
ND
R
EMOVAL
Expansion Module Activity LED (Switch)
Status
Color
Meaning
On
Amber
Packets are being transmitted or received
on the Module.
on the Module.
Off
No color
There are no packets being transmitted or
received on the Module.
received on the Module.
Expansion Module Status LED (Switch)
Status
Color
Meaning
On
Green
N/A (cannot report status of all ports
together).
together).
Off
No color
The Module is not installed.
Flashing
Amber
The Module is installed but is not
recognised (faulty or unsupported).
recognised (faulty or unsupported).
On
Amber
The Module is installed.
Port Activity LED (Module)
Status
Color
Meaning
On
Amber
Packets are being transmitted or received
on this port.
on this port.
Off
No color
There are no packets being transmitted or
received on this port.
received on this port.
Port Status LED (Module)
Status
Color
Meaning
On
Green
A link is present and the port is enabled.
Off
No color
There is no link present.
Flashing
Green
A link is present and the port is disabled.
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