Cisco 7600 SIP 200 Hardware Installation Guide - Page 69
-Port OC-12c/STM-4 ATM SPA Overview
UPC - 746320961286
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Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters Figure 3-17 SFP Optics Module 1-Port OC-12c/STM-4 ATM SPA Overview 127158 The SFP optical transceiver modules used with the POS SPAs provide the following optical fiber options: • Multimode-155-Mbps, OC-3c/STM-1 optical fiber (SONET STS-3c or SDH STM-1) Use a multimode optical fiber that has a core/cladding diameter of 62.5/125 microns. • Single-mode-155-Mbps, OC-3c/STM-1 optical fiber (SONET STS-3c or SDH STM-1) Use a single-mode optical fiber that has a modal-field diameter of 8.7 ±0.5 microns. (Nominal diameter is approximately 10/125 microns.) For single-mode and multimode optical fiber connections, you can use either a duplex LC-type cable or two simplex LC-type cables, one for transmit (TX) and one for receive (RX). Use single-mode (for intermediate- or long-reach configurations) or multimode optical fiber cable to connect your router to a network or to connect two OC-3c/STM-1-equipped routers back to back. Long-range SFP optical transceiver modules (for long-reach configurations) cannot be connected back-to-back without using an attenuator between the two of them. Figure 3-18 LC Type Cables / / / / / / 84929 RX TX 1-Port OC-12c/STM-4 ATM SPA Overview The following sections describe the 1-Port Channelized OC-12/STM-4 SPA: • 1-Port Channelized OC-12/STM-4 SPA LEDs, page 3-24 • 1-Port Channelized OC-12/STM-4 SPA Interface Specifications, page 3-24 • 1-Port Channelized OC-12/STM-4 SPA Cables and Connectors, page 3-25 OL-5052-14 Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide 3-23