tmxf28155 ETC-unknow, tmxf28155 Datasheet - Page 7

• Manufacturer Part Number: tmxf28155
• Description: Tmxf28155 Super Mapper 155/51 Mbits/s Sonet/sdh X28/x21 Ds1/e1
• Manufacturer: ETC-unknow

May 2001
2 Preface
2.3 Overview
The SONET/SDH Super Mapper device integrates the SONET/SDH line, path, and tributary termination functions
with M13 multiplex functions and the primary rate framing function. It is designed to drive an OC-3/STM-1 optical
signal directly or to allow for modular growth in terminal or add/drop applications.
It provides a versatile interface for all STS-3/STM-1 and STS-1 termination applications in point-to-point scenarios
and for ring applications. This chip can be used in tributary shelf applications for up to 28 T1 or J1 or 21 E1 line
cards providing all possible mappings into SONET/SDH. Because of the flexibility of the mappings, software
upgrades from M13 mapped connections to VT/TU mapped connections are possible. This device can also be
used for DS3/DS2 applications.
A single Super Mapper is capable of processing the aggregate bandwidth of one STS-1 or DS3. By communicating
to two other mate devices via the telecom bus interface, the Super Mapper is capable of terminating a full
STS-3/STM-1 signal.
Agere Systems Inc.
SYNC
SYS
CLK
STS-1/
STM-1
STS-3
AU-3
1 + 1
MSP
RPOAC
RTOAC
(continued)
TERMINATION
OVERHEAD
TPOAC
TTOAC
TMUX
TELECOM BUS
MPU INTERFACE
MPU INTERFACE
Figure 1. Functional Diagram of Super Mapper
AND CONTROL
MAPPER
MULTIPLEXING
SPE/
AU-3
MAPPING &
DS3
MAPPER
LOPOHIN
DS2AISCLK
VT/VC
MUX
M13
GEN/MON
PATTERN
TEST
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
LOPOHOUT
RCB AND RDL
TCB AND TDL
FRAMING
T1/E1/J1
CONNECT
ATTENUATOR
FRAMER
CROSS
BANK
T1/E1
DS2
DS3
DIGITAL
JITTER
MISC
LINERX
LINETX
SYSTEM INTERFACE
BUS
DS0/E0
DS1 (X29)
DS2 (X7)
(NSMI MODE)
(NSMI MODE)
DS1XCLK
/E1 (X22)
E1XCLK
(XN)
DS3/STS1
DS1/E1
5-8923(F)
7