Figure 2-31 Lc-Type Cable - Cisco 12000 - Series Chassis Modular Expansion Base Hardware Installation Manual

Chapter 2 Overview: Cisco 12000 Series Router Shared Port Adapters
The SFP optical transceiver modules used with the 2-Port, 4-Port, and 8-Port OC-3c/STM-1 and
OC-12c/STM-4 POS SPA configured for OC-3 and the 4-Port and 8-Port OC-3c/STM-1 POS SPA
provide the following optical fiber options:
• Multimode—155.52-Mbps, OC-3 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—155.52-Mbps, OC-3 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.)
The SFP optical transceiver modules used with the 2-Port, 4-Port, and 8-Port OC-3c/STM-1 and
OC-12c/STM-4 POS SPA configured for OC-12 provide the following optical fiber options:
Multimode—622.08-Mbps, OC-12 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-12 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
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.

Figure 2-31 LC-Type Cable

RX
Release 12.0(32)SY1, OL-8831-01, Rev. G6, July 19, 2007
2-Port, 4-Port, and 8-Port OC-3c/STM-1 and OC-12c/STM-4 POS SPA, 4-Port OC-3c/STM-1 POS SPA, and 8-Port
2-31) or two simplex LC-type cables, one for transmit (TX) and one for receive (RX).
TX
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Cisco 12000 Series Router SIP and SPA Hardware Installation Guide
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