Chapter 1 PA-POS-1OC3 Overview

OC-3 Optical Fiber Specifications

Table 1-1lists the OC-3 optical parameters.

Table 1-1

OC-3 Optical Parameters

 

 

 

 

 

 

 

 

 

 

 

Transceiver

 

Transmit

Maximum Power

Receiver

Loss

Nominal Distance

Type1

 

Power

to Receiver2, dBm

Sensitivity, dBm

Budgets, dB

Between Stations

Single-mode3

 

–5 dBm min.

–10

–34

10 to 28

Up to 25 mi. (40 km)

long reach

 

to 0 dBm max.

 

 

 

 

 

 

at 1280–1335 nm4

 

 

 

 

Single-mode5

 

–15 dBm min.

–8

–28

0 to 12

Up to 9 mi. (15 km)

intermediate reach

to –8 dBm max.

 

 

 

 

 

 

at 1280–1335 nm4

 

 

 

 

Multimode6

 

–20 dBm min.

–8

–30

0 to 7

Up to 1.2 mi. (2 km)

short reach

 

to –14 dBm max.

 

 

 

 

 

 

at 1280–1335 nm4

 

 

 

 

1.This table gives nominal OC-3 optical parameters.

2.This value represents the maximum power to which any receiver can be exposed.

3.Complies with Bellcore GR-253-CORE Long Reach Specification (LR-1).

4.Nominal wavelength is 1310 nm.

5.Complies with Bellcore GR-253-CORE Intermediate Reach Specification (IR-1).

6.Complies with Short-Reach OC-3 Specification SR-OC-3.

To calculate link losses and dispersion losses for your application, refer to the following specifications and documents:

•EIA/TIA-IVa Dispersion Unshifted Single-Mode Fiber

•EIA-TIA-IVb Dispersion Shifted Single-Mode Fiber

•GR-20-CORE,Generic Requirements for Optical Fiber and Fiber-Optic Cable

•ITU-T Recommendation G.957, Optical Interfaces for Equipment and Systems Relating to the Synchronous Digital Hierarchy

Network Management Support

Following is the protocol and MIB support for the PA-POS-1OC3:

•SNMP agent v1 (RFC 1155–1157)

•MIB II (RFC 1213); POS MIB support is available with Cisco IOS Release 12.0

PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide

 

OL-6514-04

1-5

 

 

 

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Cisco Systems PA-POS-1OC3, PA-POS-2OC3 manual Network Management Support
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PA-POS-1OC3, PA-POS-2OC3 specifications

Cisco Systems has long been at the forefront of networking technology, providing solutions that empower organizations to enhance their connectivity and communication capabilities. Among its impressive lineup, the PA-POS-2OC3 and PA-POS-1OC3 modules stand out as significant components designed to optimize performance in service provider and enterprise environments.

The PA-POS-2OC3 and PA-POS-1OC3 modules are designed for use with the Cisco 7600 Series routers and are tailored for Packet Over SONET (POS) transport. Supporting the OC-3 speed of 155.52 Mbps, these modules provide reliable high-speed connectivity, enabling organizations to efficiently manage data traffic and ensure rapid data transfer across their networks. The PA-POS-2OC3 offers dual OC-3 capabilities, allowing for higher aggregate bandwidth and redundancy options, making it common in demanding network environments.

One of the main features of the PA-POS-2OC3 and PA-POS-1OC3 is their enhanced support for advanced networking protocols, including MPLS (Multiprotocol Label Switching). MPLS facilitates efficient data routing and improves bandwidth utilization by enabling multiple types of traffic to be consolidated over a single network. This is crucial for organizations looking to deploy services like VoIP, video conferencing, and other bandwidth-intensive applications.

The modules also offer robust error correction and monitoring capabilities, which are essential for maintaining service quality in mission-critical applications. Administrators can monitor performance and diagnose issues in real-time, enabling swift responses to potential concerns that could disrupt service.

Moreover, the PA-POS-2OC3 and PA-POS-1OC3 are designed with features that support enterprise-grade security and scalability. This is particularly beneficial for organizations expecting growth or requiring enhanced protection for sensitive data as it traverses the network.

In summary, Cisco's PA-POS-2OC3 and PA-POS-1OC3 modules represent essential building blocks for high-speed networking solutions. Their support for OC-3 connectivity, advanced routing protocols, and robust monitoring capabilities make them ideal for both service providers and enterprises. Through increased scalability, improved bandwidth management, and enhanced security, these modules allow organizations to adapt to the ever-evolving landscape of data communications effectively. With Cisco at the helm, businesses can trust in a networking solution that not only meets current demands but is also primed for future growth.
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