How to Identify the Authenticity of Cisco GLC-SX-MM

GLC-SX-MM is a Cisco 1.25G, Gigabit multimode fiber optic module, which is available for multi-mode fiber optic cables with transmission distance up to 550m, It is also the industry standard Cisco 1000Base-SX Gigabit Ethernet SFP, Currently on the market there are many non-genuine, the following text will tell you how to identify true and false Cisco GLC SX MM modules.
In the network industry, Cisco (Cisco System Inc.) Can be described as no one know, no one knows all. With its IOS (Internet Operating System), Cisco in absolute leading position in the multi-protocol router on the market. Currently, the Internet, nearly 80% of the router are from Cisco. In fact, In addition to the flagship product of the router, Cisco has a full range of network devices, including hubs, switches, access servers, software and hardware firewall, network management software and so on. Cisco paid great attention to the track of the new technology, through a series of cooperation and mergers, Cisco successfully involved in broadband access, wireless communications and other emerging markets. This paper describes the Distinguish methods for Cisco switch components such as the transceiver modules. Take Cisco Cisco 1000Base-SX SF, GLC-SX-MM for example, below is the shot description and specifications about it:
GLC-SX-MM is specifically Cisco 1000Base-SX Gigabit Ethernet SFP transceiver module, the interface converter of which is a hot-swappable input/output device that plugs into a Gigabit Ethernet port or slot, linking the port with the network.
Original Cisco GLC-SX-MM
Features:
Manufacturer: Cisco Systems, Inc
Manufacturer Part Number: GLC-SX-MM= (30-1301-02)
Manufacturer Website Address: www.cisco.com
Product Type: SFP
Interfaces/Ports: 1 x 1000Base-SX
Interfaces/Ports Details: 1 x LC Duplex Connector 1000Base-SX
Dimensions: 0.33" Height x 0.53" Width x 2.22" Depth
Compatible GLC-SX-MM
Except for the original GLC-SX-MM module, many qualified fiber optic transceiver manufacturers producing the compatible GLC-SX-MM which will work well with all Cisco equipments just as the original ones, but the price is much more cheaper, and also widely accepted by customers. Cisco GLC-SX-MM Compatible 1000BASE-SX SFP 850nm module, GE SFP, LC connector SX transceiver, features are as below:
Up to 1.25Gb/s bi-directional data links
Duplex LC Connectors
Hot-pluggable SFP footprint
Built-in digital diagnostic functions
850nm VCSEL laser transmitter
Up to 550m on 50/125μm MMF
Metal enclosure for lower EMI
Single 3.3V power supply
Low power dissipation <700mW typical
Both original and compatible GLC-SX-MM SFP transceivers are high performance modules that support a data-rate of 1.25Gbps and can transmit data up to 550m over multi-mode fiber. Their applications are:
Gigabit Ethernet between switches, from switches to Wireless LAN Controllers, between switches and firewalls.
Fiber Channel – Connecting servers to NAS or SAN devices.
The original GLC-SX-MM is either manufactured by Cisco itself or its worldwide fondries. The modules will often indicated the origin countries such as China, Malaysia and so on. If there isn’t, it will be the fake. SFP transceivers can be divided into two kinds, single-mode module and multimode ones, physical state is the same with different models on the logo. GLC-LH-SM is single mode, GLC-SX-MM is multimode, for example, see this model, GLC-LH-SM =, "=" means it is the separately purchad accessory to procurement. The general price is currently quoted at $ 1495 and $ 750 in U.S. sales, in China mainland it is around 2000 to 4000 RMB. Currently, modules after the year of 2010 is mostly the new products with different size, shape as well as the shape.
Source: cisco 1000base-sx gigabit ethernet sfp

Cisco SFP 1000 Base Transceiver Modules

SFP refer to Small Form-Factor Pluggable, SFP transceiver is an upgraded version of GBIC transceiver, Which is also called Mini GBIC. Cisco SFP is widely used with their routers and switches, the Cisco Systems Inc is world famous leading company supplying network and communications products and service. Cisco is one of the top 500 companies in the world. Nowadays, 70 percent of the internet traffic goes through Cisco products. Cisco SFP transceiver is hot swappable and generally the SFP module are with LC fiber connector interface. Cisco SFP includes a wide range of the transceivers with different working wavelength and distance.
Ingellen provide a variety of Cisco SFP transceivers that can be used and interchanged on a wide variety of Cisco products and can be intermixed in combinations of 1000BASE-T, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, etc. on a port-by-port basis. Next I will mainly give a introduction of three general Cisco SFPs: GLC-LH-SM, GLC-SX-MM, GLC-ZX-SM.

Cisco GLC LH SM is a SFP fiber optic transceiver working at 1310nm wavelength, it could use with both multimode optical fiber and single mode optical fiber, it is small size transceiver with LC interface and it is hot swappable, easy to use, no need further configuration. GLC LH SM is used in Gigabit network and its max working distance is 40km over SMF at 1.25Gbps transfer rate.
Cisco GLC SX MM is a commonly used SFP transceiver which is 1000Base-SX SFP for multimode fiber and works at 850nm wavelength. It can reach 550 meter working distance via 50/125 multimode fiber, and 220 meters on 62.5/125 multimode fibers. GLC SX MM SFP is hot swappable module that fits for Gigabit Ethernet port or slot and link the port with the network. Ingellen supply Cisco equivalent GLC SX MM SFP fiber optic transceiver at very competitive prices and fast delivery.
Cisco GLC ZX SM SFP is used for 1000Base-ZX application, it works with single mode optical fiber at 1550nm working wavelength. Cisco GLC ZX SM could reach a max 120 km working distance over single mode fiber. This mini GBIC is carrier-class quality and can be fully trusted for your most demanding LAN/WAN applications, voice projects, or network deployments. Ingellen provide two kind of GLC ZX SM with 120 Km and 70Km transmission distance, Cisco 1000Base-ZX 120KM SFP and Cisco 1000Base-ZX 70KM SFP. Ingellen provide two kind of GLC-LH-SM with 10 Km and 40Km transmission distance, Cisco?1000Base-LX/LH 10 KM SFP and Cisco 1000Base-LX/LH 40KM SFP.

Cisco GLC-LH-SM, GLC-SX-MM, GLC-ZX-SM SFP Specifications:
Product Number: GLC-LH-SM, GLC-SX-MM, GLC-ZX-SM
Product Name: Cisco 1000Base-LX/LH 40/10 KM SFP, Cisco 1000Base-SX SFP, Cisco 1000Base-ZX 70/120KM SFP
Form Factor: Plug-in module
Device Type: Transceiver module
Product Type: SFP
Data Rate: 1.25Gbps
Wavelength: 1310nm, 850nm, 1550nm
Datarange: 40km/10km, 550m, 70km/120km
Connector Type: LC Duplex
Cable Type: Single-Mode Fiber (SMF), Multi-Mode Fiber (MMF)
Standard Operation Temperature: 0~70 °C
Compatiblity: 100% Cisco Compatible

In fact, Cisco SFP transceivers provided by Ingellen have never limited here, Ingellen also provide many other Cisco SFP transceivers like GLC-T, SFP GE-S, SFP GE-L, DS-CWDM4G1470-1610, CWDM-SFP-1470-1610 and more. These SFP transceivers are capable of supporting SONET, Gigabit Ethernet, Fibre Channel, Switch to Switch interface, Switched backplane applications, Router/Server interface and other optical transmission systems applications. Welcome to visit Ingellen official website to know more at www.ingellen.com.