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VSC8151QV Datasheet

  • VSC8151QV

  • 2.488Gb/s SONET/SDH STS-48/STM-16 Section Terminator

  • 473.66KB

  • 30页

  • VITESSE

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VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
VSC8151
Features
鈥?Integrated 2.488Gb/s Transceiver
鈥?SONET/SDH Transport Overhead Output
鈥?SONET/SDH Transport Overhead Modification
鈥?B1 Error Detection, Re-calculation, and Insertion
2.488Gb/s SONET/SDH
STS-48/STM-16 Section Terminator
鈥?Support for Multiple SONET/SDH Rates
鈥?LOF/SEF Alarm Generation
鈥?Section & Line AIS Insertion
鈥?50鈩?Source Terminated 2.488Gb/s I/O
General Description
The VSC8151 is a 2.488Gb/s Section Termination device which both monitors and modifies the section and
line overhead of a received SONET/SDH signal, and can generate AIS-L maintenance signals for trouble sec-
tionalization. These features allow all section termination requirements to be supported for Operations, Admin-
istration, Management, and Provisioning (OAM&P) functions in SONET/SDH terminal and optical networking
applications. An integrated 2.488Gb/s serial transceiver isolates the SONET/SDH signal interface, allowing
protocol information to be exchanged with programmable logic using a low-speed TTL interface.
VSC8151 Functional Block Diagram
LOS
CONTROL
& ALARM
DETECTION
RXFRERR
RXSEF
RXLOF
RXSIN+/-
RXSCLKIN+/-
POUTCLK
RXPIN[15:0]
SYSRST
TXSCLKIN+/-
TXOHWI
TXWRENA
TXADDR[5:0]
TXOHIN[7:0]
TXFPOUT
1:8
DMX
RXPIN[7:0]
FRAMING
DESCRAMBLER
OVERHEAD
OUTPUT
RXFPOUT
RXOHCLK
RXOHOUT[7:0]
B1
MONITOR
TXPOUT[15:0]
ASSEMBLER
OVERHEAD
INPUT &
INTERNAL
CONTROL
POUTCLK
AIS
GENERATION
SCRAMBLER
& B1 CALC
8:1
MUX
TXSCLKOUT+/-
TXSOUT+/-
NOTE: References (R#-#) or (O#-#) refer to the SONET requirement or option specification listed in
Bellcore document GR-253 CORE Issue 2, Rev. 2, January 1999.
Functional Overview
The VSC8151 is divided into two logic sections, a monitoring section and a modification section, each
interfaced externally through both 2.5Gb/s serial interfaces as well as 16-bit parallel interfaces. Incoming
G52225-0, Rev. 2.9
12/1/99
漏
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 鈥?805/388-3700 鈥?FAX: 805/987-5896
Page 1

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