Cisco 7600 SIP 200 Hardware Installation Guide - Page 62
-Port and 4-Port OC-3c/STM-1 ATM SPA Overview
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2-Port and 4-Port OC-3c/STM-1 ATM SPA Overview Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters The SFP optical transceiver modules used with the 1-Port Channelized STM-4/OC-12 SPA provide the following optical fiber options: • Multimode-622-Mbps, OC-12/STM-4 optical fiber (SONET STS-12 or SDH STM-4) Use a multimode optical fiber that has a core/cladding diameter of 62.5/125 microns. • Single-mode-622-Mbps, OC-12/STM-4 optical fiber (SONET STS-12 or SDH STM-4) 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 (see Figure 3-10) 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 1-Port Channelized STM-4/OC-12 SPA-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 3-10 LC Type Cables / / / / / / 84929 RX TX 2-Port and 4-Port OC-3c/STM-1 ATM SPA Overview The following sections describe the 2-Port and 4-Port OC-3c/STM-1 ATM SPA: • 2-Port and 4-Port OC-3c/STM-1 ATM SPA LEDs, page 3-17 • 2-Port and 4-Port OC-3c/STM-1 ATM SPA Interface Specifications, page 3-17 • 2-Port and 4-Port OC-3c/STM-1 ATM SPA Cables and Connectors, page 3-18 3-16 Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide OL-5052-14