Cisco ASR1006 Hardware Installation Guide - Page 92
-Port, 4-Port, and 8-Port OC-12c/STM-4 Multirate POS SPA Optical Transceiver Modules, Connectors,
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2-Port, 4-Port, and 8-Port OC-12c/STM-4 POS SPA Overview Chapter 3 Overview: Cisco ASR 1000 Series Aggregation Services Routers SPAs 2-Port, 4-Port, and 8-Port OC-12c/STM-4 Multirate POS SPA Optical Transceiver Modules, Connectors, and Cables The 2-Port, 4-Port, and 8-Port OC-12c/STM-4 Multirate POS SPA uses a small form-factor pluggable (SFP) optical transceiver module installed in each port for SONET multimode optical fiber connection (see Figure 3-33). The 2-Port, 4-Port, and 8-Port OC-12c/STM-4 Multirate POS SPA supports the following types of optical transceiver modules: • Multimode (MM) SFP module-SFP-OC12-MM • Short-reach (SR) SFP module-SFP-OC12-SR • Intermediate-reach (IR) SFP module (15 km)-SFP-OC12-IR1 • Long-reach (LR) SFP module (40 km)-SFP-OC12-LR1 • Long-reach (LR) SFP module (80 km)-SFP-OC12-LR2 Figure 3-33 SFP Optics Module 127158 The SFP optical transceiver modules used with the 2-Port, 4-Port, and 8-Port OC-12c/STM-4 Multirate POS SPA provide the following optical fiber options: • Multimode-622.08-Mbps, OC-12c/STM-4 optical fiber (SONET STS-12c or SDH STM-4) Use a multimode optical fiber that has a core/cladding diameter of 62.5/125 microns. • Single-mode-622.08-Mbps, OC-12c/STM-4 optical fiber (SONET STS-12c 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 3-34) or two simplex LC-type cables, one for transmit (TX) and one for receive (RX). Use single-mode (for short-, intermediate- or long-reach configurations) or multimode optical fiber cable to connect your router to a network or to connect two OC-3-equipped or OC-12-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. 3-50 Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide OL-14126-12