3com DUA1771-0AAA01 Manuale Utente

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When the Module is installed you can configure it 
through your Switch. Refer to the SuperStack
®
 3 Switch 
Implementation Guide and the Management Interface 
Reference Guide supplied with your Switch for more 
information.
When using the Module, note the following:
„
The ports only operate at 1000 Mbps.
„
The ports only operate in full duplex mode.
„
The Module is not hot-insertable.
„
The Module is not hot-swappable.
„
The Module only operates with multimode fiber optic 
cable.
If you suspect a problem, carry out these steps before 
contacting your supplier:
„
Ensure that the Module is correctly installed in the 
Switch and that the three captive thumbscrews which 
secure the Module are tightened with a suitable tool.
„
Ensure that the Switch in which the Module is fitted 
is powered-up.
„
Ensure that the device at the far end of the link is 
powered-up and operating correctly.
„
Check that all connectors on the fiber optic segment 
are correctly engaged.
„
Clean the terminators by wiping them gently with a 
clean tissue or cotton bud moistened with a little 
ethanol. Dirty fiber terminators on the fiber optic 
segment impair the quality of the light transmitted 
through the cable.
For information about technical support, refer to 
“Technical Support”on page 7.
M
ANAGING
 
THE
 M
ODULE
M
ODULE
 R
ESTRICTIONS
P
ROBLEM
 S
OLVING
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