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Chapter 3
Cisco 10000 Series Router Shared Port Adapters
Figure 3-9
The SFP optical transceiver modules used with the SPAs provide the following optical fiber options:
•
Multimode—622.08-Mbps, OC-12 optical fiber (SONET STS-12c )
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)
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.)
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 Channelized OC-12/DS0 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.
OL-13838-02
SFP Optics Module
Cisco 10000 Series Router SIP and SPA Hardware Installation Guide
2-Port Channelized OC-12/DS0 SPA
3-33
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