background image

When the Module is installed, you can configure it 
through your Switch to add extra functionality. Refer to 
the documentation that accompanies your Switch 4300 
for more information.

The Switch 4300 dynamically assigns port numbers to 
each Module installed, so if you add, replace or remove a 
Module, the port number of the other Module may 
change. The port numbers allocated depend on the type 
of Module; the number of Modules installed and the slots 
into which they are fitted.

Figure 2

 shows how a single port Module, inserted into 

Slot 2, will be assigned a port number of 49. If you then 
insert an additional dual or a single port Module into 
Slot 1 (see 

Figure 3

 and 

Figure 4

) the port numbering will 

change. The port number originally assigned to the 
Module in Slot 2 (and any port parameters you may have 
set against that port number) will be re-assigned to the 
Module installed into Slot 1. Similarly, if you then remove 
the Module from Slot 1, the port number and parameter 
settings will be re-assigned to the Module in Slot 2.

CAUTION: 

Always

 

check that each port number has the 

correct parameter settings after adding, changing or 
removing a Module. This is due to the method in which 
the Switch dynamically assigns port numbers. 

Figure 2   

Rear View of Switch 4300
Module Port Number Allocation

Figure 3   

Rear View of Switch 4300
Installing a Dual Port Module into Slot 1

Figure 4   

Rear View of Switch 4300
Installing a Single Port Module into Slot 1

When using the Module port, note the following:

„

The Module only operates at 1000 Mbps.

„

The Module only operates when connected to another 
1000BASE-LX device.

„

The Module only operates in full duplex mode.

„

The Module is not hot-swappable.

„

The Module is not hot-insertable.

„

The Module only operates with multimode and single 
mode 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.

„

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 the 
documentation supplied with your Switch.

M

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4

Summary of Contents for SuperStack 3 4300

Page 1: ...gment Lengths Supported 62 5 m 500 MHz km 2 550 m 7 1805 ft 50 m 400 MHz km 2 550 m 7 1805 ft 500 MHz km 2 550 m 7 1805 ft 8 10 m N A IEEE minimum 2m 5km 7 16405 ft 3Com qualification 2m 10 km 7 32810...

Page 2: ...devez alors replacer la plaque d obturation WARNHINWEIS Beim Einsetzen des Moduls in dem Switch sind die unverlierbaren Schrauben mit einem passenden Werkzeug festzuziehen Die Distanzplatte und die B...

Page 3: ...t the text on the front panel is upright and insert it into the Switch ensuring the connectors are fully engaged see Figure 1 Make sure the Module is pushed fully in 5 Secure the Module by tightening...

Page 4: ...od in which the Switch dynamically assigns port numbers Figure 2 Rear View of Switch 4300 Module Port Number Allocation Figure 3 Rear View of Switch 4300 Installing a Dual Port Module into Slot 1 Figu...

Page 5: ...and South America 0800 13 3266 01 800 849CARE 800 666 5065 AT T 800 998 2112 Europe Middle East and Africa From anywhere in these regions call 44 0 1442 435529 phone 44 0 1442 436722 fax Europe and So...

Page 6: ...antenna Relocate the equipment in relation to the receiver Move the equipment away from the receiver Plug the equipment into a different outlet so that equipment and receiver are on different branch c...

Page 7: ...l Computer Software Restricted Rights Clause at 48 C F R 52 227 19 and the limitations set forth in 3Com Corporation s standard commercial agreement for the software Unpublished rights reserved under...

Page 8: ......

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