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Chapter 1
Overview
Features
The PA-POS-2OC3 features include:
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Interface Specifications
The physical layer interface for the PA-POS-2OC3 is Optical Carrier-3 (OC-3c), the specification for
SONET STS-3c and SDH STM-1 transmission rates), and the PA-POS-2OC3 is designed to comply with
Packet-over-SONET specifications. The PA-POS-2OC3 provides two 155.520-Mbps Packet OC-3
network interfaces for all supported platforms.
Each PA-POS-2OC3 has two duplex LC-type receptacles that allow connection to single-mode or
multimode optical fiber. (For more information on the optical fiber cables you use with this port adapter,
see the
OL-3028-06
Dual-port Packet-over-SONET capabilities with a single-width port adapter
Single Product ID (PA-POS-2OC3), with configuration options for small form-factor pluggable
(SFP) optic modules:
POM-OC3-MM (short range, multimode fiber)
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POM-OC3-SMIR (intermediate range, single-mode fiber)
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POM-OC3-SMLR (long range, single-mode fiber)
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Ability to use a combination of any two of the SFP modules
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
Supports versatile interface processors— VIP4-50, VIP4-80, and VIP6-80 on the Cisco 7500 series
routers
Supports Cisco route switch processors—RSP4+, RSP8, and RSP16 on the Cisco 7500 series routers
Supports the Cisco 7304 PCI port adapter carrier card on the Cisco 7304 router
Supports the FlexWAN and Enhanced FlexWAN modules for the Cisco 7600 series routers
Supports online insertion and removal (OIR)
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For more information, see the
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-2OC3
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port adapter, see the
"Cables and Connectors" section on page
"Cables and Connectors" section on page
PA-POS-2OC3 Two-Port Packet-over-SONET Port Adapter Installation and Configuration
"Online Insertion and Removal" section on page
1-6.)
Features
3-2.
1-6.
1-3
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