Products PSF15

PSF15
155 Mbps PDH over SONET/SDH Framer

The PSF15™ is a highly integrated PDH Framer capable of mapping Telecom traffic into protected OC-3/STM-1 SONET/SDH transport payloads. The PSF15 is equipped with multiple voice and leased line interfaces - such as DS1/E1 and DS3/E3.

Interfaces

• Equipment / client side:
• 28/21 x DS1/E1
• 3 x DS3/E3
• 3 x STS‑1/VC‑3 or 1 x STS‑3c/VC‑4 byte wide multi-drop Telecom Bus
• Line / trunk side:
• Protected OC-3 or STM-1

• Network Access Equipment
• Telecom/Datacom Aggregation Equipment
• Test Equipment
• for more applications please visit our solutions catalog

• Support for SONET/SDH linear 1+1 APS and UPSR/SNCP with dual line interface
• Full SONET/SDH Transport Overhead (TOH) processing, with configurable serial extraction and insertion
• Full SONET/SDH high and low order path termination
• Complete TU‑3/TUG‑3 and TUG‑2/TUG‑3 support
• Complete VT1.5/VC‑12 path termination and origination for 28/21 DS1/E1 framers
• 3 DS3/E3 framers (M23 or C‑bit parity modes) for DS3/E3 to STS/VC mapping
• Single M13/E13 multiplexer for DS1/E1 to DS3/E3 to STS/VC mapping
• Multi-drop Telecom Bus interface for connection to supplemental PDH framers
• Simultaneous support of all services up to 155 Mbps aggregate rate
• Generic 16-bit microprocessor interface

The PSF15 is a highly integrated device capable of mapping both Telecom traffic into SONET/SDH transport payloads.  On the line side, the PSF15 supports protected OC‑3/STM‑1 interfaces.  On the client side, DS1/E1 and DS3/E3 interfaces are available.  In addition, a Telecom Bus interface is provided to support additional client Telecom or Datacom connections.

The PSF15 maps up to 155 Mbps of traffic from PDH client side interfaces.  Traffic destined for the SONET/SDH trunk from any client side interface can be assigned at VT/VC-12 and STS/VC-3 granularities.  Any client side payload data can be mapped into any valid combination of VT1.5/VC‑12, STS‑1/VC‑3 or STS‑Nc/VC‑4‑Xc positions of the SONET/SDH payload.

The PSF15 performs all SONET/SDH section and line terminating functions including normal or enhanced framing, scrambling/descrambling, parity generation and monitoring, remote line error indication processing, section trace message generation and extraction, orderwire and user channel insertion and extraction.  Serial insertion and extraction of all section and line data communication channels, and synchronization message insertion and extraction is also supported.  Linear line protection schemes are supported by performing error detection, signal degrade or failure detection based on provisionable bit error rate thresholds, and automatic protection switching information extraction and validation.  Line status is consolidated and presented to software in a manner that facilitates rapid identification of faults.

The PSF15 supports full SONET/SDH pointer processing of any combination of STS‑1/VC‑3 and concatenated payloads up to 155 Mbps.  Path overhead monitoring and automatic detection of path level defects for UPSR/SNCP operation, and path trace message generation and monitoring are provided.

Up to 28/21 DS1/E1s can be directly connected from external Line Interface Units (LIUs) and either mapped into VT1.5/VC-12s or, via M13/E13, into a DS3/E3 and then into an STS-1/VC-3 path.  DS1/E1 framers are provided in both directions to allow full fault isolation on asynchronously mapped VT/VCs.  On DS1 interfaces, the Super Frame (SF), Extended Super Frame (ESF) and SLC‑96 framing formats are supported, while E1 interfaces support G.704 basic and CRC‑4 framing formats with full performance monitoring, and line and facility loopback, test pattern generation.

Up to 3 DS3/E3s can also be mapped into any available STS‑1/VC‑3.  Full performance monitoring is provided in all DS3/E3 framers.

Sample Solutions

For more sample solutions, please visit our solutions catalog.

More Information and Contact Info

For more information on the Galazar family of products, please contact your Galazar Networks Sales representative at
http://www.galazar.com/contact/sales.html.

Galazar Networks and the Galazar Networks logo are registered trademarks of Galazar Networks Inc. The information found in this document is subject to change without notice. This material is provided on an "as is" basis. Galazar Networks Inc. makes no representation or warranties of any kind, expressed or implied arising out of the application or use of any product described herein, neither does it convey any license under its patent rights, copyrights, or trade secrets nor the rights of others. This document is the property of Galazar Networks Inc. No part of this publication may be copied, reproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic, photographic, or otherwise, or used as the basis for manufacture or sale of any items without the prior written consent of Galazar Networks Inc.

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