Cisco ASR1006 Hardware Installation Guide - Page 79

SFP Optics Module, LC-Type Cables, Single-mode-155-Mbps

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Chapter 3 Overview: Cisco ASR 1000 Series Aggregation Services Routers SPAs Figure 3-23 SFP Optics Module 2-Port, 4-Port, and 8-Port OC-3c/STM-1 POS SPA Overview 127158 The SFP optical transceiver modules used with the 2-Port and 4-Port OC-3c/STM-1 POS SPA 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 (see Figure 3-24) 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 2-Port and 4-Port OC-3c/STM-1 POS 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 them. Figure 3-24 LC-Type Cables / / / / / / RX TX 84929 OL-14126-12 Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide 3-37

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3-37
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide
OL-14126-12
Chapter 3
Overview: Cisco ASR 1000 Series Aggregation Services Routers SPAs
2-Port, 4-Port, and 8-Port OC-3c/STM-1 POS SPA Overview
Figure 3-23
SFP Optics Module
The SFP optical transceiver modules used with the 2-Port and 4-Port OC-3c/STM-1 POS SPA 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 (see
Figure 3-24
) 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 2-Port and 4-Port OC-3c/STM-1 POS 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 them.
Figure 3-24
LC-Type Cables
127158
/ /
/ /
/ /
TX
RX
84929