Cisco Fiber Optic Module Model GLC-SX-MM

Cisco GLC-SX-MM optical fiber module specifications and information:

The Cisco GLC-SX-MM optical fiber module is produced by Cisco and is sold in the network equipment market. Today, the Cisco GLC-SX-MM optical fiber module is used to transmit signals, and due to the increase in the use of this method, the use of this module has also increased in proportion. Modules are used in devices such as switches and routers to transmit and receive signals.

Cisco GLC-SX-MM fiber optic module can be used to connect to MM multimode fiber optic. If your multimode cable is 50 microns, you can expect it to support a range of 550 meters, and of course, the Cisco GLC-SX-MM fiber optic module for 62.5 microns multimode communication can be used up to a distance of 220 meters.

Features of Cisco GLC-SX-MM fiber optic module:

• SFP module type
• 1000Base-LX design
• Wired connection technology
• Connections Dual-LC simplex Optical Connector
• Standards IEEE 802.3z – IEEE 802.3ah
• 1.25Gbps speed
• Support facilities for multimode optical fibers (MMF) with wire diameters of 50 and 62.5 micrometers
• Distance covered:

550m@50/125µm OM2 MMF

275m@62.5/125µm OM1 MMF

220m@62.5/125µm FDDI MMF

SFP modules:

In fact, SFP modules play the most important role in infrastructure networks. One thing to note when installing and replacing these modules is that the device must be restarted to be able to use the module.

If you have very sensitive networks and it is not possible to restart the devices (DOWN TIME), you can use HOT PLUG modules which are known as XFP, and do not need to restart the device for installation and transfer.

Different modes of fiber and its modules:

Optical fibers are divided into single mode and multimode. The most important difference between the two is in the dimensions, capacity, and core used in them.

Multimode optical fibers have a larger diameter, so they can transmit more pulses or signals with more bandwidth. But the noteworthy point is that it is better to use Single Mode fibers in telecommunication facilities because as the diameter and core increase, the optical pulses are weakened and travel a shorter distance.

Another difference between multimode and single-mode fibers is the type of equipment required for installation. Multimode optical fibers have a higher transmission speed due to the larger diameter of the core, which makes them require cheaper equipment than single-mode fibers.

The difference between Cisco GLC-SX-MM and GLC-SX-MMD fiber optic modules:

These two modules have many differences in terms of functionality, including the letter D at the end of the GLC-SX-MMD module. This letter at the end of this model of the module means DOM. DOM is an industry standard that defines a digital interface for accessing operational parameters in real-time.

Of course, the Cisco GLC-SX-MM optical fiber module is no longer sold since 2013. But today, due to the high price of the GLC-SX-MMD modules, the use of these modules has increased due to their lower price. And in terms of functionality, it works the same when it is placed in the switch.