AMCC CS4805

DANUBE
Product Brief
Part Number S4805CBI11, Revision 1.5, January 2003
SONET/SDH STS-48/STM-16 Framer/Pointer Processor
• SONET/SDH Mux/Demux, Transport Overhead Terminating
Transceiver and Pointer Processors for STS-48/STM-16 and
up to 4 x STS-12/STM-4 or 16 x STS-3/STM-1s.
• TOH can be either terminated/regenerated, or transparently
passed-through device on a per-function basis, in both
through-timing and pointer processor applications.
• Serial STS-12/STM-4 and STS-3/STM-1 interfaces.
• For multiplex applications (4xSTS-12 or 16xSTS-3), the TOH
for the lower speed tributaries is passed-through in the unused
bytes of the outgoing STS-48 signal.
• Provisionable as SONET or SDH on a per line basis.
• Provisionable as SOH/LOH pass-through or termination/regeneration device.
• STS-48 frame regeneration on output side. Provisionable passthrough or regeneration of defined TOH bytes.
• Built-in 192x48 cross-connects for STS-1 level cross-connection or add/drop, in both Mux and Demux directions.
Demultiplex Direction:
• Compliant with Bellcore GR-253, ITU G.707, and ANSI T1.105
-1995 standards.
• Supports a single STS-48/STM-16 input.
Multiplex Direction:
• Provides parallel STS-48/STM-16, serial 4xSTS-12/STM-4 or
serial 16xSTS-3/STM-1 outputs.
• Supports parallel STS-48/STM-16 or serial 4xSTS-12/STM-4
or serial 16xSTS-3/STM-1 inputs.
• Pointer Processor for all valid input combinations of STS-48c/
AU-4-16c, STS-12c/AU-4-4c, STS-3c/AU4, or STS-1/AU-3 signals.
• Provides a single STS-48/STM-16 output.
• Non-intrusive STS-48/STM-16 TOH monitor.
• Pointer Processors for all valid input combinations of STS-48c/
AU-4-16c, STS-12c/AU-4-4c, STS-3c/AU-4, or STS-1/AU-3
signals.
• Provisionable pointer processor bypass available for STS-48 to
STS-48 operation (through-timing). Both a full bypass (no
frame regeneration) as well as a pointer processor bypass
(frame regeneration can be enabled) are provided.
• Non-intrusive TOH monitoring for all inputs: STS-48, 4xSTS-12
or 16xSTS-3.
• TOH can be either terminated/regenerated, or transparently
passed-through the device on a per-function basis, in both
through-timing and pointer processor applications.
• Provisionable pointer processor bypass available for STS-48 to
STS-48 operation (through-timing). Both a full bypass (no
frame regeneration) as well as a pointer processor bypass
(frame regeneration can be enabled) are provided.
• STS-48/STS-12/STS-3 frame regeneration on output side. Provisionable pass-through or regeneration of defined TOH bytes.
DX_LSDATA_OUT[1,5,9,13]
DX_LSCLK_OUT_[1,5,9,13]
S/P
RX FRMRS
POINTER
PROC.
DEMUX
TOH
INSERT 4
Mux
Direction
MX_REF_CLK_IN
MX_ASYNC_FRM_IN
MX_ASYNC_FRM_OUT
MX_HS_155CLK_OUT
MX_HS_155DATA_OUT[1:16]
MX_HS_622CLK_OUT
MX_HS_622DATA_OUT[1:4]
FRGN48
Demux Direction
High Speed
Interface
TOH
INSERT
TOH
INSERT
POINTER
PROC.
4
MX_TOH_HSENB_IN
MX_TOH_HSDATA_IN[1:4]
MX_TOH_HSFRM_IN
MX_TOH_HSCLK_OUT
MX_PROT_CLK_OUT
MX_PROT_DATA_OUT[1:4]
MX_PROT_CLK_IN
MX_PROT_REFCLK_IN
MX_PROT_DATA_IN_[1:4]
RSTB
INTB
D[15:0]
ADDR[12:0]
CSN
WRB(RWB)
RDB(DSB)
RDYB(DTACKB)
BUSMODE
APS_INTB
UPCLK
SYNCMODE
MICROPROCESSOR I/F
4
SEL
DX_LS_PDATA_OUT[1:16]
DX_LS PCLK_OUT
DX_REFCLK_IN
4
TOH
DROP
SEL
Low Speed
Interface
MX_LSCLK_IN[1,5,9,13]
MX_LSDATA_IN[1,5,9,13]
P/S
TX FRAMGEN
MX_LS_PCLK_IN
MX_LS_PDATA_IN[1:16]
4xFR12/3 + 12xFR34xFR12/3+12xFR3
or 1 x FR48
or 1 x FR48
MX_ALARM_OUT[1:16]
MX_LOSEXT[1:16]
MX_TOH_LSDATA_OUT[1:16]
MX_TOH_LSFRM_OUT[1:16]
MX_TOH_LSCLK_OUT[1:16]
Figure 1: Block Diagram
DX_HS_155FRM_IN
DX_HS_155CLK_IN
DX_HS_155DATA[1:15]
DX_HS_622CLK_IN
DX_HS_622DATA_IN[1:4]
FRAM48
TOHDROP
Empowering Intelligent Optical Networks
DX_ALARM_OUT
DX_LOSEXT_IN
DX_TOH_HSDATA_OUT[1:4]
DX_TOH_HSFRM_OUT
DX_TOH_HSCLK_OUT
GPIO[15:0]
TDO
TCK
TMS
TDI
TRSTB
TS_EN
DX_PROT_CLK_OUT
DX_PROT_DATA_OUT_[1:4]
DX_PROT_REFCLK_IN
DX_PROT_CLK_IN
DX_PROT_DATA_IN[1:4]
DX_TOH_LS_5/20ENB_IN
DX_TOH_LSDATA_IN[1:16]
DX_TOH_LS_5/20CLK_OUT
DX_TOH_LS_5/20FRM_OUT
DX_ASYNC_FRM_IN
DX_ASYNC_FRM_OUT
DX_REF_CLK_IN
FINAL/PRODUCTION RELEASE Information - The information contained in
this document is about a product in fully tested and charactherized phase. All
features described herein are supported. Contact AMCC for updates to this
document and the latest product status.
DANUBE
Product Brief
SONET/SDH STS-48/STM-16 Framer/Pointer Processor
Overview and Applications
Part Number S4805CBI11, Revision 1.5, January 2003
non-intrusive manner for monitoring purposes only. No pointer
processing, cross-connection or frame regeneration is performed.
SONET Processing
The S4805 can be used in either SONET or SDH applications. On
the low-speed side, it can interface to 4 groups of either 1 STS12/STM-4 or 4 STS-3/STM-1 signals in each direction.
In the demultiplex direction, the S4805 accepts an STS-48/STM16 signal, either in 4-bit wide, 622 MHz or 16-bit wide, 155 MHz
format. There are then several modes of operation that the S4805
supports in the demultiplex direction.
For STS-48 only operation, the S4805 provides a full-bypass
mode, as well as a pointer processor bypass mode. In the fullbypass mode, the S4805 simply passes the incoming STS-48/
STM-16 signal directly through to the demux output. Framing,
descrambling and TOH monitoring are performed off-line, in a
non-intrusive manner for monitoring purposes only. No pointer
processing, cross-connection or frame regeneration is performed.
In pointer processor bypass operation, the S4805 locates the
incoming STS-48/STM-16 frame, optionally descrambles the
data, and non-intrusively monitors the TOH. The STS-48/STM-16
signal is then passed directly to the frame generation block, in
which outgoing TOH overhead bytes can be provisionally regenerated, on a per function basis. Again, no pointer processing is
performed, and the cross-connect block is bypassed.
For applications requiring pointer processing, the S4805 locates
frame in the incoming STS-48/STM-16 signal, performs descrambling, monitors the TOH bytes, and then performs pointer processing. The pointer processor provides a mode in which the
incoming TOH bytes transparently pass through the pointer processor to the corresponding locations in the TOH of the outgoing
tributaries. The TOH bytes involved in this transparent passthrough mode include the defined overhead bytes for the constituent STS-3/STM-1, STS-12/STM-4 or STS-48/STM-16 signals. A
192x48 cross-connect block is available after the pointer processor. This cross-connect can be used to select STS-1s from any of
the demuxed tributaries, tributaries from the low-speed mux
inputs, or tributaries from the DX and MX APS interfaces to place
into any one of the outgoing STS-1 time slots in any of the outgoing signals in the demux direction. If this signal does not contain a
STS-48c/AU-4-16c payload, the S4805 can demultiplex the signal
to 4 groups of either 1 STS-12/STM-4 or 4 STS-3/STM-1 tributaries. The selected tributaries then proceed in the demux direction
to frame generators that provisionally generate the TOH/SOH
bytes, perform scrambling, and output the data. Alternatively, the
overhead data can be transparently passed through the frame
generation block.
In the multiplex direction, the S4805 accepts a single STS-48/
STM-16 signal (4-bits wide, 622 MHz or 16-bit wide, 155 MHz), 4
serial STS-12/STM-4 (622 MHz) signals or 4 groups of 4 serial
(155 MHz) STS-3/STM-1 signals. There are several modes of
operation that the S4805 supports in the multiplex direction.
In pointer processor bypass operation, the S4805 locates the
incoming STS-48/STM-16 frame, optionally descrambles the
data, and non-intrusively monitors the TOH. The STS-48/STM-16
signal is then passed directly to the frame generation block, in
which outgoing TOH overhead bytes can be provisionally regenerated, on a per function basis. Again, no pointer processing is
performed, and the cross-connect block is bypassed.
For applications requiring pointer processing, the S4805 locates
the incoming STS-48/STM-16, STS-12/STM-4 or STS-3/STM-1
frames, descrambles the data, non-intrusively monitors the TOH/
SOH bytes and then performs pointer processing. The pointer
processor provides a mode in which the incoming TOH bytes
transparently pass through the pointer processor to the corresponding locations in the TOH of the outgoing tributaries. The
TOH bytes involved in this transparent pass-through mode
include the defined overhead bytes for the constituent STS-3/
STM-1, STS-12/STM-4 or STS-48/STM-16 signals. A 192x48
cross-connect block is available after the pointer processor. This
cross-connect can be used to select STS-1s from the incoming
multiplex side signals, tributaries from the demux direction, or tributaries from either the DX or MX APS interface. These selected
tributaries are then muxed into an STS-48/STM-16 signal. This
STS-48/STM-16 muxed signal then proceeds to a frame generator that provisionally generates the TOH/SOH bytes, performs
scrambling, and outputs the data. Alternatively, the overhead data
can be transparently passed through from the mux inputs to output.
Low-Speed Interfaces
On the low-speed side, in both the mux and demux directions, the
S4805 supports either a 16-bit wide, 155 Mb/s STS-48/STM-16
signal, a 4-bit wide, 622 Mb/s STS-48/STM-16 signal, 4 serial
STS-12/STM-4 signals operating at 622 Mb/s or 4 groups of 4
serial STS-3/STM-1 signals operating at 155 Mb/s. The S4805 is
designed to bolt directly to fiber optic transceivers with built-in
clock data recovery. (See figure below.)
High-Speed Interface
On the high-speed side, in both the mux and demux directions,
the S4805 supports either a 16-bit wide, 155 Mb/s or a 4-bit wide,
622 Mb/s STS-48/STM-16 signal.
Controller Interface
A high-speed microprocessor interface is provided for configuration and monitoring. S4805 provides numerous automatic monitoring functions. It can be configured to provide an interrupt to the
control system, or it can be operated in a polled mode.
Applications:
• SONET/SDH add/drop multiplexers, terminal multiplexers, and
digital cross connects.
• WDM/DWDM Mux/Demux applications
For STS-48 only operation, the S4805 provides a full-bypass
mode, as well as a pointer processor bypass mode. In the fullbypass mode, the S4805 simply passes the incoming STS-48/
STM-16 signal directly through to the mux output. Framing,
descrambling and TOH monitoring are performed off-line, in a
2
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DANUBE
Product Brief
Part Number S4805CBI11, Revision 1.5, January 2003
SONET/SDH STS-48/STM-16 Framer/Pointer Processor
Figure 2: Typial Application
Typical Application: S4805 in 2.488 Gb/s SONET/SDH Add/Drop Multiplexer Application
Microprocessor
Control
Control
Addr
13 16
Data
SerTxD±
OC-12
FO Signal
Fiber Optic
XCVR
RxD±
OC-12
FO Signal
Fiber Optic
XCVR
RxD±
AMCC
S3024
CRU
SerRxCLK±
SerTxD±
AMCC
S3024
CRU
SerRxCLK±
AMCC
S3024
CRU
SerRxCLK±
AMCC
S3024
CRU
SerRxCLK±
SerTxD±
OC-12
FO Signal
Fiber Optic
XCVR
RxD±
OC-12
FO Signal
Fiber Optic
XCVR
RxD±
AMCC
S3455
MX_HS_622DATA_OUT[1:4] P/S & S/P SerTxD±
Fiber Optic
SONET XCVR
DX_HS_622CLK_IN
SerRxD±
XCVR
with
DX_HS_622DATA_IN[1:4] Clk Rcvry
MX_HS_622CLK_OUT
DANUBE
S4805CBI
OC-48
FO Signal
SerTxD±
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.
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