Cisco WS-C5509 Hardware Installation Manual page 51

Chapter 4 Maintenance and Upgrade Procedures
Table 4-2
SFP Module
1000BASE-LX/LH
1000BASE-SX
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 4-3
SFP
Module
LX/LH
SX
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.
Only SFP modules certified by Cisco are supported on the adaptive security appliance.
Note
Protect your SFP modules by inserting clean dust plugs into the SFPs after the cables are extracted from
Caution
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
78-17989-01
Supported SFP Modules
Type of Connection
Fiber-optic
Fiber-optic
Table 4-3 lists the cable length requirements.
Cabling Requirements for Fiber-Optic SFP Modules
62.5/125 micron 50/125 micron
Multimode 850 Multimode 850
nm Fiber nm Fiber
— —
275 m at 550 m at
200 Mhz-km 500 Mhz-km
Installing and Replacing the 4GE SSM
Cisco Part Number
GLC-LH-SM=
GLC-SX-MM=
62.5/125 micron 50/125 micron
Multimode 1310 Multimode 1310
nm Fiber nm Fiber
550 m at 550 m at
500 Mhz-km 400 Mhz-km
— —
Cisco ASA 5500 Series Hardware Installation Guide
9/125 micron
Single-mode
1310 nm Fiber
10 km
—
4-17