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Cisco ASA 5500-X Series Hardware Installation Guide
Chapter 1 Information about the ASA 5500-X
ASA 5500-X I/O Cards
ASA 5500-X I/O Cards
The Cisco ASA 5500-X Series 6-port Gigabit Ethernet interface cards extend the I/O capabilities of the
ASA 5525-X, ASA 5545-X, and ASA 5555-X models by providing additional Gigabit Ethernet ports.
The I/O cards provide the following benefits:
• Segmentation of network traffic into separate security zones
• Fiber optic cable connectivity for communicating over long distances
• Load sharing of traffic and protection against link failure by using EtherChannel
• Support for Jumbo Ethernet frames of up to 9000 bytes
• Protection for Active/Active failover and of full-mesh firewall deployments against cable failure
For More Information
For information about installing an I/O card in your ASA, see Chapter 4, “Maintenance and Upgrade
Procedures for the ASA 5500-X.”
SFP Modules
The ASA uses a field-replaceable SFP module to establish Gigabit Ethernet connections. Table 1-1 lists
the supported SFP modules.
The 1000BASE-LX/LH and 1000BASE-SX SFP modules are used to establish fiber-optic connections.
Use fiber-optic cables with LC connectors to connect to an SFP module. The SFP modules support 850
to 1550 nm nominal wavelengths. The cables must not exceed the required cable length for reliable
communications. Table 1-2 lists the cable length requirements.
Use only Cisco certified SFP modules on the ASA. Each SFP module has an internal serial EEPROM
that is encoded with security information. This encoding provides a way for Cisco to identify and
validate that the SFP module meets the requirements for the ASA.
Table 1-1 Supported SFP Modules
SFP Module Type of Connection Cisco Part Number
1000BASE-LX/LH Fiber-optic GLC-LH-SM=
1000BASE-SX Fiber-optic GLC-SX-MM=
Table 1-2 Cabling Requirements for Fiber-Optic SFP Modules
SFP
Module
62.5/125 micron
Multimode 850
nm
Fiber
50/125 micron
Multimode 850
nm Fiber
62.5/125 micron
Multimode 1310
nm Fiber
50/125 micron
Multimode 1310
nm Fiber
9/125 micron
Single-mode
1310 nm Fiber
LX/LH — — 550 m at
500 Mhz-km
550 m at
400 Mhz-km
10 km
SX 275 m at
200 Mhz-km
550 m at
500 Mhz-km
———