Monday, September 28, 2015

Introduction to Cisco X2-10GB-LR and X2-10GB-LRM

Cisco 10GBASE X2 module offers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications. Today’s text will be focused on two commonly used Cisco 10GBASE X2 transceivers—Cisco X2-10GB-LR and X2-10GB-LRM.
Description of X2 Transceiver
Before we come to the main part of this text, let’s talk about the X2 transceiver first. X2 transceiver is a hot swappable products designed for 10Gbps fiber optic transceiver applications, which is the successor to the former XENPAK standards. X2 transceiver’s inner function is nearly the same as XENPAK. They are both supporting SC connector. But X2 can use one transceiver to fulfill all 10G Ethernet optical port function. Compared to XENPAK, X2 transceiver is more suitable for density installations for its smaller size.
Cisco X2 transceiver is the most famous X2 transceiver brand in the telecommunication field. Cisco X2 transceiver supports Ethernet, Sonnet/SDH and Fibre Channel applications across all Cisco switching and routing platforms.
What Is Cisco X2-10GB-LR?
Cisco X2-10GB-LR is single-mode 10GB transceiver working together 1310 nm, its max working distance is 10km. It is compliant with 10GBASE-LR standard. The X2-10GB-LR is a highly integrated, serial optical transponder module for high-speed, 10Gbps data transmission applications. It can achieve 4×3.125Gbps Ethernet signal input by XAUI (Auxiliary Unit Interface) interface. X2-10GB-LR is designed for 10km transmission using a vertical cavity surface emitting laser (VCSEL). This X2 10GB transceiver Digital diagnostics functions are available using a 2-wire serial interface. The following image shows a compatible Cisco X2-10GB-LR.
compatible Cisco X2-10GB-LR
What Is Cisco X2-10GB-LRM?
Cisco X2-10GB-LRM module supports link lengths of 220m on standard Fiber Distributed Data Interface (FDDI) grade multimode fiber. It is compliant with 10GBASE-LRM standard. To ensure that specifications are met over FDDI-grade, OM1 and OM2 fibers, the transmitter should be coupled through a mode conditioning patch cord (MCP). No mode conditioning patch cord is required for applications over OM3 or OM4. For additional information on mode conditioning patch cord requirements. Please see: The following image shows a compatible Cisco X2-10GB-LRM.
compatible Cisco X2-10GB-LRM
Customers may feel confused about Cisco X2-10GB-LR and X2-10GB-LRM since they look like similar except for the extra letter “M”. A brief description of their similarities will be provided in the following table.
similarities between Cisco X2-10GB-LR and X2-10GB-LRM
Fiberstore 10GBASE X2 Module
Fiberstore supplies a variety of compatible Cisco X2 10GBASE modules including X2-10GB-LR, X2-10GB-LRM, and so on. We have a great quantity of compatible Cisco X2 transceivers in stock and can ship products for you within twenty four hours. Please feel free to contact us for any further information.
This text provides a brief introduction to two Cisco X2 10GBASE modules—X2-10GB-LR and X2-10GB-LRM. I hope readers can learn something from my blog.

Thursday, September 24, 2015

Things You May Ask About 1000BASE-LX/LH SFP

SFP (small form pluggable) transceiver, also called Mini-GBIC by the vendors, is one of the key components required for telecom and data communication applications. There are many companies supplying SFP transceiver like Cisco, Finisar, 3com, HP, NETGEAR, etc. You can find all compatible SFP transceivers in Fiberstore with competitive price and great performance. 1000BASE-LX/LH SFP, one of the commonly used optical transceivers, is now very popular in the optical network system. The following text is going to illustrate something you may feel curious about 1000BASE-LX/LH SFP (GLC-LX-SM-RGD and Finisar FTLF1318P2BTL). From the article, we might have a deeper understanding of using these transceiver modules.
GLC-LX-SM-RGD is Cisco 1000BASE-LX/LH SFP transceiver module. GLC-LX-SM-RGD, compatible with the IEEE 802.3z 1000BASE-LX standard, operates on standard single mode fiber optic link lengths of up to 10 km and up to 550 m on any multimode fibers. When used over legacy multimode fiber type, the transmitter should be coupled through a mode conditioning patch cable (MCP). The GLC LX SM RGD transceiver module combines quality with low cost and makes it an ideal alternative except for the high-price transceivers. Fiberstore GLC LX SM RGD is compatible with all Cisco series switches and modules which support SFP transceivers. The following picture shows a GLC-LX-SM-RGD.
What About Mode Conditioning Patch Cable?
When selecting an optical transceiver, watch the transceiver’s user documentation for when a MCP should be utilized. They are sometimes required when your network’s installed optical cable is OM1 or OM2 rated multimode fiber. In short, the MCP is used to adapt the single mode output of Gigabit Ethernet (1000BASE-LX) transceivers to a multimode cable network.
Overview of Finisar FTLF1318P2BTL
Finisar FTLF1318P3BTL SFP transceiver is compatible with the SFP Multi-Sourcing Agreement (MSA). It is a duplex SFP transceiver for optical communications, rated for distances up to 10km and a maximum bandwidth of 1.25Gbps. The FTLF1318P2BTL transceiver operates at 1310nm wavelength. Finisar FTLF1318P2BTL simultaneously comply with 1000BASE-LX/LH as specified in IEEE Std 802.3 and 1x Fibre Channel as defined in FC-PI-2 Rev. 8.00. They are RoHS (Reduction of Hazardous Substances) compliant and lead-free per directive 2011/65/EU and Finisar Appl. Note AN-2038. Digital diagnostics functions are available via the 2-wire serial bus specified in the SFP MSA. A Finisar FTLF1318P2BTL is shown below.
Finisar FTLF1318P2BTL
What Is the Difference Between LH and LX Modules?
LH stands for Long Haul that means longer distances, while LX(long wavelength) denotes less energy which is obviously shorter distance. Before it was standardized, 1000BASE-LX10 was essentially already in widespread use by many vendors as a proprietary extension called either 1000BASE-LX/LH or 1000BASE-LH.
Does 1000BASE-LX SFP Work With 1000BASE-LH SFP?
Yes, 1000BASE-LX can work with the 1000BASE-LH. For example, Cisco 1000BASE-LX/LH SFP is either made for single mode (long distance) or multimode (short distance). But this module can be used for both single mode and multimode.
1000BASE-LX/LH SFP transceiver is widely applied in Gigabit Ethernet, Fibre Channel switch infrastructure and other optical transmission systems. Fiberstore, as a professional OEM manufacturer of optical networking solutions, offers a large selection of compatible SFP transceivers in stock such as GLC-LX-SM-RGD, Finisar FTLF1318P2BTL, JD099B, 3CSFP92 and so on. Contact us if you could not find the right items you need.