Cisco CAB-GS-50CM Manual Do Utilizador

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Components Used
The GigaStack GBIC is an adapter that can only be installed into the GBIC modules slot of any supported
switch. The maximum distance for a GBIC−to−GBIC connection is one meter. The GigaStack GBIC requires
Cisco proprietary signaling and cabling. Each GigaStack GBIC consists of two ports, port 1 and port 2. One or
both ports can be used, depending on cabling configuration.
GBIC: WS−X3500−XL (Cisco GigaStack GBIC and 50 centimeter cable for GigaStack GBIC)
• 
Cable: CAB−GS−1M (one meter cable/39.3696 inches)
• 
Cable: CAB−GS−50CM (50 centimeter cable/19.6850 inches)
• 
 Caution: Do not use standard IEEE 1394 cables with the GigaStack GBIC. You must use one of the
Cisco proprietary cables (CAB−GS−50CM or CAB−GS−1M). If you use any other cable, you will not have
connectivity.
 Caution: Do not use the GigaStack GBIC with standard IEEE 1394 equipment. You might damage the
equipment or lose data.
Conventions
For more information on document conventions, refer to the Cisco Technical Tips Conventions.
Cabling Configuration
It is extremely important to understand how to physically connect the GigaStack GBICs and what mode of
operation will occur. Each physical configuration is is cabled somewhat differently and may require the use of
more than one GigaStack per switch. Failure to comply may result in a loss of connectivity. The GigaStack
GBIC can be cabled in one of the following three ways:
Point−to−point
• 
Cascaded stack
• 
Cascaded stack with a redundant link
• 
The GigaStack GBIC will auto negotiate to either full−duplex or half−duplex. The software determines the
mode of operation by the way the cables are connected and the number of switches in the stack.
Note that although duplex can be forced, it is not supported. The only supported option for duplex is to leave
it to auto−negotiate.
Cisco − Catalyst Switch GigaStack Configuration and Implications