Niagara
OC-192/48/12/3 DW/FEC/PM and ASYNC Mapper Device
Figure 3: OC-48/STM16 (and below) to OTU-1 Edge Tran-
sponder
Figure 3 shows the Niagara in an edge transponder applica-
tion. An AMCC S3474 CMOS Dual-SerDes with Continuous
mode operation provides the interface to the client side and
network side optics. In this application, the client half of the
S3474 will run down to FDDI rates (125 Mbps). The network
Product Brief
Part Number S19208CBI, Revision 1.4, Jan 2003
side of the S3474 will support the client rate plus 7% overhead
for a pure FEC application, or it will support an OTU-1 rate for
mapping into the Digital Wrapper frame.
Figure 3: OC-48/STM16 to OTU-1 Edge Transponder
LO
TX REF GEN
Client I/F
NIAGARA
S19208
OC48/12/3 (and SDH)
8B/10B Signals down
to FDDI (125Mb)
S3475
Dual Continuous
Rate Transceiver
Network I/F
ODU-1 OH
ADD/DROP
TOH
ADD/DROP
AMCC reserves the right to make changes to its products, or to discontinue any product or service without notice, and advises its customers to
obtain the latest version of relevant information to verify, before placing orders, that the information being relied upon is current.
AMCC is a registered trademark of Applied Micro Circuits Corporation. Copyright © 2002 Applied Micro Circuits Corporation. All Rights Reserved.
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4
Empowering Intelligent Optical Networks
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
