RELEASED
PM73123 AAL1GATOR-8
DATASHEET
PMC-2000097
ISSUE 2
8 LINK CES/DBCES AAL1 SAR
4
APPLICATION EXAMPLES
An essential function for ATM networks is to emulate existing Time
Division Multiplexing (TDM) circuits. Since most voice and data services
are currently provided by TDM circuits, seamless interworking between
TDM and ATM has become a system requirement. The ATM Forum has
standardized an internetworking function that satisfies this requirement in
the Circuit Emulation Service (CES) Specification. The AAL1gator-8 is a
direct implementation of that service specification in silicon, including the
Nx64 channelized service and support of CAS.
4.1 Integrated Access Device
An Integrated Access Device (IAD) consolidates voice, data, Internet, and
video wide-area network services using ATM over shared T1/E1 lines.
IADs can also unify the functions of many different types of equipment
including CSUs, DSUs and multiplexers. Figure 1 shows the AAL1gator-8
connected to PM4354 COMET-QUADs, a PM7329 S/UNI-APEX-1K800
Traffic Manager, a PM7328 S/UNI-ATLAS-1K800 ATM Layer device and
the PM7347 S/UNI-JET.
UTOPIA L2/
UTOPIA L2
Any-PHY
PM4354
COMET-
QUAD
COMET-
QUAD
PM7329
S/UNI-APEX-
1K800
PM4354
PM73123
AAL1gator-8
T1/E1 x 8
PM7347
S/UNI-JET
DS3 LIU
PM7328
S/UNI-ATLAS-
1K800
ATM
Ethernet
Video
Interworking
Function,
AAL5 SAR
Figure 1. AAL1gator-8 in an Integrated Access Device (IAD)
Application.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
29
PMC [ PMC-SIERRA, INC ]
