Nortel Networks Passport Module 8672A - Manual (Page 23)

23
Using the Passport 8672ATM Module
Chapter 1
About the Passport 8672ATM Module
The Passport 8672ATM Module provides network transmission using ATM
technology. The Passport 8672ATM Module enables MAN/WAN/campus
connectivity for the Passport 8600 Routing Switch with the capability to
interconnect frame-switched networks using a backbone ATM network. The
module also provides existing ATM customers with the capability for connectivity
to the Passport 8600 Routing Switch. (For more information on ATM, refer to the
ATM Forum Web site at the http://www.atmforum.com URL.)
The Passport 8672ATM Module occupies a single slot in a Passport 8600 series
chassis. The module is a baseboard with room for two of the following optional
Media dependent adapters (MDAs):
• 1-port OC-12c/STM-4: single-mode fiber (SMF) or multimode fiber (MMF)
using the Synchronous Optical Network (SONET/SDH) media
• 4-port OC-3c/STM-1: SMF or MMF using SONET media
The Passport 8672ATM Module for the Passport 8000 series chassis can be used
as an edge device for WAN connectivity in the data center; it is used to connect
Passport 8600 to public or private ATM networks. You can also use the Passport
8672ATM Module in the wiring closet in inter-building connection technology in
campus networks where each building is supported by frame-switched networks.
Another network application of the Passport 8672ATM Module is a direct
connection between one Passport 8600 series switch with a Passport 8672ATM
Module in one building to an identical module in another Passport 8600 Series
switch at another building. You connect the switches with a dedicated fiber link or
with a SONET multiplex network. Each building may be individually supported
by either frame-switched or ATM technology.
You can use up to two Passport 8672ATM Modules in one Passport 8600 series
chassis.