A-5
Cisco ASA 5500 Series Hardware Installation Guide
78-17374-01
Appendix A Installing and Replacing the SSM
Installing and Replacing the 4GE SSM
SFP Module
Note The following is supported on the ASA 5510, ASA 5520, ASA 5540, and ASA 5550.
The adaptive security appliance uses a field-replaceable SFP module to establish Gigabit connections.
Table A-2 lists the SFP modules that are supported by the adaptive security appliance.
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 A-3 lists the cable length requirements.
Use only Cisco certified SFP modules on the adaptive security appliance. 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 adaptive security
appliance.
Note Only SFP modules certified by Cisco are supported on the adaptive security appliance.
Caution Protect your SFP modules by inserting clean dust plugs into the SFPs after the cables are extracted from
them. Be sure to clean the optic surfaces of the fiber cables before you plug them back into the optical
bores of another SFP module. Avoid getting dust and other contaminants into the optical bores of your
SFP modules. The optics do not work correctly when obstructed with dust.
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
Table A-2 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 A-3 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
———
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