Extreme Networks Alpine 3802, Hardware Manual

Page: 273 / 352

Configuring I/O Modules
Extreme Networks Consolidated Hardware Guide 273
A3cSi and A3cMi Modules
Figure 138 shows the A3cSi and A3cMi modules.
Figure 138: 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.
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.
BD_A3_2
Module status LEDs
Service ports
Network
interface
ports
Port
status
LEDs
Port
status
LEDs