TMUX03155 AU-4 Multiplexer/Demultiplexer Datasheet

TMUX03155 Datasheet, PDF, Equivalent


Part Number

TMUX03155

Description

TMUX03155 STS-3/STM-1 (AU-4) Multiplexer/Demultiplexer

Manufacture

Agere Systems

Total Page 30 Pages
Datasheet
Download TMUX03155 Datasheet


TMUX03155
Preliminary Data Sheet
April 2001
TMUX03155 STS-3/STM-1 (AU-4) Multiplexer/Demultiplexer
Features
I Multiplexes three STS-1 signals into a SONET
STS-3 signal.
I Multiplexes three AU-3 signals into an SDH STM-1
(AU-4) signal via a TUG-3 construction.
I Demultiplexes three STS-1 signals from a SONET
STS-3 signal.
I Demultiplexes three AU-3 signals from an SDH
STM-1 (AU-4) signal via a TUG-3 deconstruction.
I High-speed microprocessor interface configurable
to operate with most commercial microprocessors.
I Detects STS-3/STM-1 (AU-4) loss-of-signal (LOS)
conditions.
I Detects STS-3/STM-1 (AU-4) out-of-frame and
loss-of-frame (OOF/LOF) conditions.
I Provides an 8-bit bus interface at the STS-1/AU-3
rate.
I Provides a bit serial, nibble-wide, or byte-wide
interface at STS-3/STM-1 (AU-4) rate.
I Provides STS-3/STM-1 (AU-4) selectable scram-
bler/descrambler functions and B1/B2/B3 genera-
tion/detection.
I Accepts bit rate, nibble rate, or byte rate high-
speed clocks (155.52 MHz, 38.88 MHz, or
19.44 MHz, respectively).
I STS-3/STM-1 (AU-4) internal clock and data
recovery. Meets type B jitter tolerance of ITU-T
G.958. Accommodates 0.5 UI jitter up to 20 MHz.
155.52 MHz input reference clock for on-chip PLL.
Has on-chip PLL for clock synthesis, requiring only
one external resistor. No output clock drift in
absence of data transitions once lock is acquired.
I STS-1 termination mode.
I –40 °C to +85 °C temperature range.
I 208-pin, shrink quad flat pack (SQFP) package.
I Complies with GR-253-CORE (12/95), G.707
(3/96), G.783(1/94).
Applications
I SONET/SDH line termination equipment.
I SDH path origination and termination equipment.
I SONET/SDH add/drop multiplexers.
I SONET/SDH cross connects.
I SONET/SDH test equipment.
Description
The TMUX03155 STS-3/STM-1 (AU-4) multiplexer
device provides three modes of operation: STS-3,
STM-1 (AU-4), and STS-1 modes. In STS-3 mode,
the TMUX03155 device provides all of the functions
necessary to multiplex and demultiplex up to three
STS-1 signals to/from a SONET STS-3 signal. In
AU-4 mode, the TMUX03155 provides the functional-
ity to multiplex and demultiplex up to three AU-3 sig-
nals to/from an STM-1 (AU-4) signal. In STS-1 mode,
the high-speed side of the TMUX03155 operates at
51.84 MHz and can be used for STS-1 termination
and for accessing transport overhead in the SONET
frame. On the STS-3/STM-1 (AU-4) side, the device
can be configured for either a 1-bit serial data inter-
face, a 4-bit parallel (nibble-wide) data interface, or
an 8-bit parallel (byte-wide) data interface. This
allows the device to drive an OC3 optical signal
directly or to allow for modular growth in terminal or
add/drop applications. On the STS-1/AU-3 side, the
TMUX03155 device provides a bus mode that can
communicate with up to three STS-1/AU-3 devices at
19.44 Mbits/s. The TMUX03155 is designed to inter-
face with the Agere Systems Inc. TMPR28051
device, or equivalent, providing complete mapping/
unmapping from/to an STS-3/STM-1 (AU-4) signal
for up to 84 DS1 or 63 E1 signals.

TMUX03155
TMUX03155 STS-3/STM-1 (AU-4) Multiplexer/Demultiplexer
Preliminary Data Sheet
April 2001
Table of Contents
Contents
Page
Features ................................................................................................................................................................... 1
Applications .............................................................................................................................................................. 1
Description ................................................................................................................................................................ 1
Nomenclature Assumptions ...................................................................................................................................... 7
Block Diagram ..........................................................................................................................................................7
Pin Information ......................................................................................................................................................... 9
Summary of I/O Pins .........................................................................................................................................15
Mode Control Signals (See Register Description on page 54.) ..............................................................................16
STS-1 Mode ...........................................................................................................................................................16
Transmit Direction Overview ..................................................................................................................................17
STS-1/AU-3 Bus Mode Input Retiming ..............................................................................................................17
Input Select Control ...........................................................................................................................................17
STS-1/AU-3 Inputs ............................................................................................................................................17
Out-of-Frame (OOF) and Loss-of-Frame (LOF) Monitoring ..............................................................................18
Descramble Enable/Disable ..............................................................................................................................18
Monitor B1 and B2 Errors ..................................................................................................................................19
H4 Multiframe and Pointer Monitor (AU-4 Mode Only) ......................................................................................19
STS-3 Generate ................................................................................................................................................20
Transport Overhead Access Channel (TOAC) Insert ........................................................................................23
STS-3/STM-1 (AU-4) Scramble Enable ............................................................................................................23
STS-3/STM-1 (AU-4) B1, B2, and B3 BIP Generation ......................................................................................23
STS-3/STM-1 (AU-4) Loopback Control ............................................................................................................23
STS-3/STM-1 (AU-4) Output Interface ..............................................................................................................23
Receive Direction Overview ...................................................................................................................................23
Input Retime ......................................................................................................................................................24
Clock and Data Recovery ..................................................................................................................................24
STS-3/STM-1 (AU-4) Framing ...........................................................................................................................24
Loss of Signal ....................................................................................................................................................24
Loopback Select Logic ......................................................................................................................................25
RSTS-3/STM-1 (AU-4) Frame Synchronous Descrambling (SONET/SDH) .....................................................25
TOAC Drop ........................................................................................................................................................25
B1, B2, and B3 Checking ..................................................................................................................................25
Monitoring Functions .........................................................................................................................................25
Pointer Interpretation .........................................................................................................................................25
Data Demultiplex and Conversion (AU-4 Mode Only) .......................................................................................26
STS-1/AU-3 Output Byte Control ......................................................................................................................26
B1 and B2 Generate ..........................................................................................................................................26
STS-1/AU-3 Output Scramble ...........................................................................................................................27
Output Selection Logic ......................................................................................................................................27
Output Data Formatter ......................................................................................................................................27
Maintenance Functions ..........................................................................................................................................27
Maintenance Functions Disabled During Failure Conditions .............................................................................28
Common Maintenance and Control Functions ..................................................................................................28
Transmit Functions ............................................................................................................................................30
Receive Functions .............................................................................................................................................38
Typical Uses ...........................................................................................................................................................45
Section and Line Termination Multiplex ............................................................................................................45
Add/Drop Multiplex ............................................................................................................................................46
Digital Cross Connect ........................................................................................................................................46
Microprocessor Interface ........................................................................................................................................47
Overview ...........................................................................................................................................................47
2 Agere Systems Inc.


Features Preliminary Data Sheet April 2001 TMUX0 3155 STS-3/STM-1 (AU-4) Multiplexer/Dem ultiplexer Features I Applications I I I I I Multiplexes three STS-1 signals into a SONET STS-3 signal. Multiplexes three AU-3 signals into an SDH STM-1 ( AU-4) signal via a TUG-3 construction. Demultiplexes three STS-1 signals from a SONET STS-3 signal. Demultiplexes thr ee AU-3 signals from an SDH STM-1 (AU-4 ) signal via a TUG-3 deconstruction. Hi gh-speed microprocessor interface confi gurable to operate with most commercial microprocessors. Detects STS-3/STM-1 ( AU-4) loss-of-signal (LOS) conditions. Detects STS-3/STM-1 (AU-4) out-of-frame and loss-of-frame (OOF/LOF) conditions . Provides an 8-bit bus interface at th e STS-1/AU-3 rate. Provides a bit seria l, nibble-wide, or byte-wide interface at STS-3/STM-1 (AU-4) rate. Provides ST S-3/STM-1 (AU-4) selectable scrambler/d escrambler functions and B1/B2/B3 gener ation/detection. Accepts bit rate, nibb le rate, or byte rate highspeed clocks (155.52 MHz, 38.88 MHz, .
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