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PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide
OL-6514-04
Chapter 1 PA-POS-1OC3 Overview
Features
The following references discuss concepts and specifications of POS and PPP:
• Simpson, W, Editor, The Point-to-Point Protocol (PPP), RFC 1548, Daydreamer, December 1993.
• Simpson, W, Editor, PPP in HDLC -like Framing, RFC 1662, Daydreamer, July 1994.
• Simpson, W, Editor, PPP over SONET/SDH, RFC 1619, May 1995.
• American National Standard for Telecommunications - Digital Hierarchy - Optical Interface Rates
and Formats Specification, ANSI T1.105-1991.
• American National Standard for Telecommunications - Synchronous Optical Network (SONET)
Payload Mappings, ANSI T1.105.02-1993 draft.
ITU-T Recommendation G.707, Synchronous Digital Hierarchy Bit Rates, June 1992.
Features
The PA-POS-1OC3 features include:
• Single-port Packet-over-SONET capabilities with a single-width port adapter
• Single product ID (PA-POS-1OC3), with configuration options for small form-factor pluggable
(SFP) optic modules:
–
POM-OC3-MM (short range, multimode fiber)
–
POM-OC3-SMIR (intermediate range, single-mode fiber)
–
POM-OC3-SMLR (long range, single-mode fiber)
• Field-replaceable SFP optic modules
• Automatic protection switching (APS)
• Supports network processing and switching engines—NPE-400, NPE-G1, NSE-1 on the
Cisco 7200 VXR platform
• Online insertion and removal (OIR) allowing you to remove, add, or replace a PA-POS-1OC3 when
the system is online
• Standards-compliant SONET/SDH interface; SONET/STS-3c and SDH/STM-1 framing and
signaling overhead
• Full-duplex operation at 155 Mbps (half-duplex operation is not supported)
• Self-synchronous x^43+1 scrambling and descrambling of packets
• Support for 16- and 32-bit cyclic redundancy checking (CRC-16 and CRC-32)
• Single-mode or multimode fiber-optic cables capability
For information on the single-mode and multimode cables to use with the Cisco PA-POS-1OC3 port
adapter, see the “Cables and Connectors” section on page 1-7.