
Extreme Networks Consolidated Hardware Guide 16-23
Configuring I/O Modules
A3cSi Module
Figure 16-13 shows the A3cSi module.
Figure 16-13: A3cSi module
The A3cSi module has four OC-3 ports, using duplex SC connectors. The A3cSi
supports single mode fiber-optic cable only.
These modules connect the switch to an Asynchronous Transfer Mode (ATM)
infrastructure. Key applications for the ATM module are:
• Interconnecting metropolitan area networks across an ATM network infrastructure.
• Interconnecting server co-location network sites directly using ATM links.
• Providing connectivity between a legacy Enterprise ATM network and an Ethernet
backbone.
The default configuration of the A3cSi module is as follows:
• All ports are added to the default VLAN as untagged.
• All ports inherit the properties of the default VLAN (VLANid and so forth).
BD_A3
Module status LEDs
Service ports
Network
interface
ports
Port
status
LEDs
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