Extreme 3802 Installation Guide

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Extreme Networks Consolidated "i" and "e" Series Hardware Installation Guide
BlackDiamond 6800 Series I/O Modules
A3cSi and A3cMi Modules 
Extreme Networks offers the ATM module in the following configurations:
A3cSi—four OC-3 single-mode, intermediate-reach optical interfaces 
A3cMi—four OC-3 multimode, short-reach optical interfaces
NOTE
The “c” in the names of the modules indicates that the optical interfaces on these modules operate in 
concatenated mode, which enables all the bandwidth to be devoted to a single payload stream.
Figure 168 shows the A3cSi and A3cMi modules. 
Figure 168: A3cSi and A3cMi modules
The A3cSi and A3cMi (Asynchronous Transfer Mode (ATM)) modules have four OC-3 ports using 
duplex SC connectors. The A3cSi supports single mode fiber-optic cable only, and the A3cMi support 
multimode fiber-optic cable only. These modules interconnect metropolitan area networks across an 
ATM infrastructure, interconnect server co-location network sites directly using ATM links, and provide 
connectivity between a legacy Enterprise ATM network and an Ethernet backbone. 
In the first application, the metropolitan area network service provider can build service network sites 
in various cities, then use ATM modules in a BlackDiamond 6800 series switch to connect those cities to 
a carrier’s ATM infrastructure.
In the second application, operators of server co-location networks can use ATM modules in 
BlackDiamond 6800 series switches to create an ATM-based connection between server co-location sites. 
The result is that their network is simpler to manage, and problems can be isolated and resolved more 
expediently.
In the third application, a service provider can provide Ethernet-based services by using ATM modules 
in a BlackDiamond 6800 series switch to connect their Enterprise ATM network to an Ethernet 
backbone. 
BD_A3_2
Module status LEDs
Service ports
Network
interface
ports
Port
status
LEDs
Port
status
LEDs