Installing And Removing The Sfp Modules - Cisco ASA5500-HW - Hardware Accessory Kit Network Device Hardware Installation Manual

Installing and Removing the 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 4-2
SFP
Module
LX/LH
SX
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.
Only SFP modules certified by Cisco are supported on the ASA.
Note
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 operate correctly when obstructed with dust.
Because invisible laser radiation may be emitted from the aperture of the port when no cable is
Warning
connected, avoid exposure to laser radiation and do not stare into open apertures. Statement 70
Cisco ASA 5500-X Series Hardware Installation Guide
4-14
Table 4-2 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
Chapter 4 Maintenance and Upgrade Procedures
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
— —
9/125 micron
Single-mode
1310 nm Fiber
10 km
—