Small Form-factor Pluggable (SFP) Optical Transceivers

A SFP is a hot-swappable input/output device that plugs into the SFP ports, linking the switch with the fiber-optic network.The following SFP media types are supported:

• CWDM (CWDM-SFP-xxxx=)
• Cisco 1000BASE-T SFP (GLC-T=)
• Short wavelength 1000BASE-SX (GLC-SX-MM=)
• Long wavelength/long haul 1000BASE-LX/LH (GLC-LH-SM=)
• Extended distance 1000BASE-ZX (GLC-ZX-SM=)

A small form-factor pluggable (SFP) Gigabit LH40 transceiver that provides a full-duplex Gigabit solution up to 40 km on a single mode fiber.

• 100BASE   -   FE Fast Ethernet
• 1000BASE -   GE Gigabit Ethernet

• Long Haul ( LH ) denotes longer distances 
• Long Wavelength ( LX ) denotes less energy which is  shorter distance

Generally a SFP module is either made for single mode (More distance) / multi-mode (short distance).If used with SM fiber it can go upto 10Km

Inserting and Removing Blade-Clasp SFP module

The blade-clasp SFP module has a blade clasp that you use to secure the SFP module in a switching module port.

Waning :

Invisible laser radiation may be emitted from disconnected fiber or connectors. Do not stare in to beams or view directly with optical instruments.

Inserting a Blade-Clasp Module:

To insert a blade-clasp SFP module into a swiching module port, follow these steps:

 step 1: Close the blade-clasp before inserting the SFP module.

 step 2 : Line up the SFP module with the port, and slide into the port.

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.