Cisco Systems CISCO7201 Manual De Usuario
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Cisco 7201 Installation and Configuration Guide
OL-11364-04
Chapter 2 Installing the Cisco 7201 Router
Connecting I/O Cables
When in a fixed-speed configuration and MDI mode:
•
Use a crossover cable to connect to an MDI port
•
Use a straight-through cable to connect to an MDI-X port
Connecting Native Gigabit Ethernet Cables
The Cisco 7201 router has four native Gigabit Ethernet interfaces and six physical Gigabit Ethernet
ports, four SFP ports (optical) and two RJ-45 ports (copper). The use of an RJ-45 port or SFP port on a
common Gigabit Ethernet interface is mutually exclusive at any one time.
ports, four SFP ports (optical) and two RJ-45 ports (copper). The use of an RJ-45 port or SFP port on a
common Gigabit Ethernet interface is mutually exclusive at any one time.
Gigabit Ethernet SFP Connection Equipment
The SFP port is a 1000-Mbps optical interface in the form of an LC-type duplex port that supports
IEEE 802.3z interfaces compliant with the 1000BASEX standard. (See
Warning
Because invisible laser radiation may be emitted from the aperture of the port when no cable is
connected, avoid exposure to laser radiation and do not stare into open apertures. Statement 70
connected, avoid exposure to laser radiation and do not stare into open apertures. Statement 70
shows the Class 1 warning label that appears on the Gigabit Ethernet optical ports.
Figure 2-14
Laser Class 1 Warning Label
shows the duplex LC-type connectors on your multimode or single-mode optical fiber
cables. For simplex connectors, two cables are required, one cable for transmit (TX) and a second cable
for receive (RX). For duplex connectors, only one cable that has both TX and RX connectors is required.
You can use either simplex or duplex connectors to the SFP ports on the Cisco 7201 router.
for receive (RX). For duplex connectors, only one cable that has both TX and RX connectors is required.
You can use either simplex or duplex connectors to the SFP ports on the Cisco 7201 router.
provides cabling specifications and configuration information for the SFP
modules that you install in the Gigabit Ethernet SFP ports.
The following SFP modules are supported on the Cisco 7201:
•
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.
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-LH/LX SFP module—The SFP-GE-L= (1000BASE-LH/LX SFP module) operates on
ordinary single-mode fiber-optic link spans of up to 32,808 feet (10,000 meters) in length.
ordinary single-mode fiber-optic link spans of up to 32,808 feet (10,000 meters) in length.
•
1000BASE-SX SFP module—The SFP-GE-S= (1000BASE-SX SFP module) operates on ordinary
multimode fiber-optic link spans of up to 1804 feet (550 meters) in length.
multimode fiber-optic link spans of up to 1804 feet (550 meters) in length.
1000BASE-ZX SFP module—The SFP-GE-Z= (1000BASE-ZX SFP module) operates on ordinary
single-mode fiber-optic link spans of up to 43 miles (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.
single-mode fiber-optic link spans of up to 43 miles (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.
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CLASS 1 LASER PRODUCT
LASERPRODUKT DER KLASSE 1
PRODUIT LASER DE CLASSE 1
PRODUCTO LASER CLASE 1