Cisco Systems PA-POS-1OC3 Network Management Support, Transceiver, Transmit, Maximum Power, Loss

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