Cisco Systems 7200 VXR manual 3-21, Dimensions H x W x D

Chapter 3 Installing a Cisco 7200 VXR Router

Connecting I/O Controller, NPE-G1, or NPE-G2 Cables

Table 3-1	SFP Module Specifications
Specification		Description
Dimensions (H x W x D)		Height: 0.33 in. (8.5 mm)
		Width: 2.22 in. (56.5 mm)
		Depth: 0.53 in. (13.4 mm)
Connectors		Multimode fiber-optic: LC
		Single-mode fiber-optic: LC

Note

Note

Note

Table 3-2provides cabling specifications for the SFP modules that you install in the Gigabit Ethernet SFP ports.

The NPE-G2 supports single Ethernet interfaces based on SFP module technology. The following SFP modules are supported by this line card:

•100BASE-FX SFP—The SFP-GE-F=,100BASE-FX SFP module is a hot-swappable device that plugs into a Gigabit Ethernet SFP port. It provides full-duplex 100-Mbps connectivity over multimode fiber (MMF) infrastructures. The 100BASE-FX SFP operates on ordinary MMF optical link spans of up to 2 kilometers (km) in length.

•1000BASE-LX/LH SFP—The SFP-GE-L=, 1000BASE-LX/LH SFP module operates on ordinary single-mode fiber-optic link spans of up to 10,000 meters in length.

•1000BASE-SX SFP—The SFP-GE-S=, 1000BASE-SX SFP module operates on ordinary multimode fiber-optic link spans of up to 550 meters in length.

•1000BASE-ZX SFP—The SFP-GE-Z=, 1000BASE-ZX SFP module operates on ordinary single mode fiber-optic link spans of up to 70 kilometers in length. Link spans of up to 100 km are possible using premium single-mode fiber or dispersion-shifted single-mode fiber. The SFP module provides an optical link budget of 23 dB—the precise link span length depends on multiple factors such as fiber quality, number of splices, and connectors.

When shorter distances of single-mode fiber are used, it may be necessary to insert an inline optical attenuator in the link to avoid overloading the receiver. A 5-decibel (dB) or 10-dB inline optical attenuator should be inserted between the fiber-optic cable plant and the receiving port on the SFP-GE-Z= at each end of the link whenever the fiber-optic cable span is less than 25 km.

The required line card SFP module is shipped installed in the line card. Cisco sells individual SFP modules separately and you can change the type of Gigabit Ethernet interface supported by this line card by simply changing its SFP module.

Optical fiber cables are commercially available; they are not available from Cisco Systems.

We strongly recommend cleaning optical fiber connections before attaching cables to equipment. See the “Fiber-Optic Cleaning Information” section on page 5-10for information.

Cisco 7200 VXR Installation and Configuration Guide

OL-5013-09 3-21