SFP transceiver compatible Cisco

SFP (Small Form-factor Pluggables) can be simply interpreted asthe upgrade version of GBIC. SFP module volume ratio is reduced by half than GBIC module, more than double number of ports can be configured in the same panel. SFP Module  functions are same to GBIC , be known as Mini-GBIC.

Gbic ports

sfp ports

Fiber optic connectors, is the fiber of the optical module connector, also has a good variety of each other can not beinteroperable. Not often contact with the fiber may mistakenly think that the GBIC and SFP module optical fiber connector is same.In fact, SFP modules with LC fiber optic connector;GBIC with SC fiber optic connector.

Cisco SFP optical module packaging series ,such as

GLC-SX-MM SFP multi-mode optical module (850nm-1.25Gb/s-550M-LC)

GLC-SX-MM

GLC-LH-SM SFP single-mode optical module (1310nm-1.25Gb/s-10KM-LC)
GLC-ZX-SM SFP single-mode optical module (1550nm-1.25Gb/s-80KM-LC)

GLC-ZX-SM

GLC-T SFP electrical interface module (1.25Gb/s-100M-RJ45)

GLC-T

DWDM optical transceiver module

DWDM  is the  Dense Wavelength Division Multiplexing technology, refers to a fiber optic data transmission technology,this technique uses the wavelength of the laser in accordance withthe bit parallel transmission or string line transmission in optical fiber to transmit data. DWDM optical modules is a kind of dense wavelength division multiplexing optical module .There are 40 channels for choose.

DWDM SFP+

The DWDM SFP+ is specifically designed for carriers and large enterprises that require a scalable, flexible, cost-effective system for multiplexing, transporting and protecting high-speed data, storage, voice and video applications in point-to-point, add/drop, ring, mesh and star network topologies. Dense Wavelength Division Multiplexing (DWDM) enables service providers to accommodate many hundreds of aggregated services of any sub-rate protocol without installing additional dark fiber. It is therefore the choice for the highest-bandwidth applications, such as 10GbE, 4G Fibre Channel, 40Gbit/s and 100Gbit/s in the future.

DWDM XFP

The DWDM XFP optical module is so-called DWDM (DenseWavelength Division Multiplexing) XFP package optical modules.

FiberStore offer DWDM XFP 40km/80km/120km Small Form Factor 10Gb/s transceivers comply with the current XFP Multi-Source Agreement (MSA) Specification. They support DWDM 10Gb/s SONET/SDH, DWDM 10-Gigabit Ethernet and 10-Gigabit Fibre Channel applications. Digital diagnostics functions are available via a 2-wire serial interface, as specified in the XFP MSA.

FiberStore also supply DWDM X2,DWDM XENPAK, DWDM SFP transceiver module ,allows enterprise companies and service providers to offer scalable and easy-to-deploy 10 Gigabit Ethernet services in their networks.

Benefits of the SFP Transceiver

Small-form factor pluggable modules continue to change as quickly as the Ethernet standards do. Faster processor speeds allow computers to broadcast information across copper and fiber-optic channels; however, newer speeds entail the need for newer transceivers to read and convey electrical signals. With the construction of new transceivers, newer modules are capable of granting better transfer rates across longer distances, and include various configurations for different standards, serving as standard products for the networking industry. Designed to substitute for the older XENPAK modules, SFP transceivers keep changing, but continue as the industry’s all-in-one interface electronics.

Compatibility

SFP transceiver provide compatibility to multiple setups, across both fiber optic and copper channels and for both short and long-distance communication. An example of how universal these electronics can be is they can lend support to Gigabit standards as well as 100 Gigabit from Cisco to Dell networks. For administrators who set up personal or business networks, the advantages of having a transceiver are the ability to save money and the ability to not have to constantly get new hardware. Without these electronics, it would be difficult for networks to communicate because of the various distinctions among the different setups.

Communication Distance

One aspect that SFP transceivers manage to conduct well is the ability to pass on information from one network to the next. This continues to be feasible thanks to electrical signals sent from the motherboard across either fiber optics or copper wiring. Some optical transceiver modules can send electrical signals further than others depending on the design; for instance, some can convey data across a length of 550m. Networks that hinge on both short and long distance communication may require a transceiver capable of handling the output of information across both distances.

Data Rate

The motherboard sends information to the transceiver, and if a network has multiple different Cisco SFP  module, each could potentially transfer data across the fiber optic or copper wiring faster or slower. Each transceiver comes with a set speed at which it moves data, with higher rates providing better transfers. All modules move data at the speed of some Gigabits per second, or simply Gpbs, but some electronics have as slow as 1Gbps, and others operate at 10Gbps or greater.

These three attributes mix together to give transceivers an industry edge, making them necessary and valuable to any network. Thanks to the universal abilities of each module, communicating across various networks is simple. Today’s modules may be soon replaced by tomorrow’s module that boasts a faster data transfer rate, better compatibility and communication across longer distances.

How to Buy the Right SFP Module for your IT system

Fiber optic transceiver is easier to learn and understand than ever before.Today’s transceivers continue to evolve and are of a higher grade, needing very little maintenance.With continuous improvements to and enhancement of devices, it is becoming easier than ever for the average person to install and maintain fiber modules and transceiver equipment.Getting professional guidance before you purchase any of these products will help you save a lot of time,if this is your first time purchasing or installing fiber optic products.

It is now quite easy to run cable and attach transceiver connecters simply by using the instructions provided with the box. You don’t need to be intimidated. Today’s fiber optics are made to be user friendly. If you are unsure which products and equipment will work best for your system, use a qualified vendor. A qualified vendor will be able to not only assist you in buying the right equipment, but also in installing and connecting your products.

Still some help tips for you

1 Every module you order today will lend support for the various types of Ethernet standards that exist, from pre-10GE to 100GE, as well as for configuration across multiple wavelengths. When in the market for a new transceiver, just make sure you think about your present and later needs, because Ethernet standards will change and newer, more efficient standards will make their way into the industry, making older devices obsolete. When purchasing an older module, it is wise to get an item that can still support the newer standards that may make their way to the market, as times will continue to phase out the later standards to make room for the latest ones. For example, Cisco GLC-T transceivers support all the present and former standards, making these great bargains for anyone looking for an upgrade or just a replacement.

2 When you need modules and other accessories for your office system, you might need some professional help.  Most large corporations will have IT departments with employees who are experienced in finding and replacing computer and electronic products.  If you work in a little office, you usually don’t have an IT department.  This may cause you some difficulties in purchasing and installing system products.  You can go about buying these items in different ways.

3 Tt is wise to go with the best SFP fiber modules,Fiber optic equipment is not an area that you want to skimp in spending money on. If you decide to go with equipment simply because it is cheap, you will most likely pay more for it in the end. In terms of fiber optics, you always get what you pay for. That being said, make sure you verify the manufacturer you are buying transceivers from. All optical transceiver should be created under specific guidelines set by the industry. This ensures that you are getting the highest quality products possible.

cisco gbic module for Cisco switch

Cisco GBIC (the GigaStack the Gigabit Interface Converter) is a generic, low-cost Gigabit Ethernet stacking optical module，provides high-speed connection between the Cisco switch, can establish high-density port on a switch, but also can connect with the server or thousandsmegabit backbone .It provides low-cost, high-performance options for the transition of fast Ethernet to Gigabit Ethernet. In addition, by optical fiber, can achieve aconnection with a remote high-speed backbone network.

WS-G5484

WS-G5484 GBIC Multi-mode optical module (850nm-1.25Gb/s-550M-SC)

GBIC module is divided into two categories:ordinary cascade GBIC module and stack dedicated GBIC module.

Cascade GBIC module

Cascade GBIC module

Cascade use of GBIC module is divided into 4 kinds:

A 1000Base-T GBIC module, for cat5 or cat6 twisted pair, the maximum transmission distance is to 100 meters.

B 1000Base-SX GBIC module for multi-mode fiber (MMF), thelongest transmission distance is to 500 meters

C 1000Base-LX/LH GBIC module for single-mode fiber (SMF), themaximum transmission distance is to 10 km.

D 1000Base-ZX GBIC, applies to the long-wave single-mode fiber, the maximum transmission distance of 70 km to 100 km.

GBIC module is installed in GBIC slots

Stacking GBIC module

Stacking GBIC module is used to realize switch between low-cost Gigabit connectivity. Shows the GigaStack GBIC stacking modulefor Cisco Catalyst 2950/3550. Should be noted that the GigaStack-GBIC specifically for Gigabit stacking between switches, GigaStack-GBIC connection use specialized stacking cables.

xfp module-BIDI XFP&CWDM XFP

XFP-10 Gigabit Small Form Factor Pluggable .  XFP is a hot-swappable optical transceiver  independent of the communication protocol.

Usually  avelength of the transmission of light is 850nm, 1310nm or 1550nm for 10G bps SONET / SDH, Fibre Channel, gigabit Ethernet, 10 of gigabit Ethernet and other applications, including DWDM link. The XFP contains digital diagnostic modules similar to the SFF-8472 , but was extended to provide a powerful diagnostic tool.

XFI-electrical interface specification is part of the XFP the Multi Source Agreement specifications.

XFP was developmented  by the XFP the Multi Source Agreement Group.

The specific application of the XFP 

10G Ethernet
10 Gigabit / sec Fibre Channel
SONET OC-192
Of SDH the STM-64
The OTN OTU, 2
Parallel optical link

XFP classification 

BIDI  XFP

◆ single fiber bi-directional (BIDI) optical module
◆ a single fiber bi-directional work, the XFP
◆ Integrated 1550/1490nm or 1550/1310 WDM
◆ single supply a +3.3 V / +5 V supply
◆ LVPECL / PECL Data Interface;
◆ Operating temperature -40 ° C to +85 ° C (industrial grade) 0 ° C ~ +70 ° C
◆ comply with the requirements of GR-468-CORE
◆ comply with Laser Class 1, to achieve with IEC60825-1 requirements
◆ available to meet RoHS requirements

 CWDM XFP 

◆ 1270nm to 1610nm wavelength of 18 channels to choose from
◆ Uncooled MQW DFB LD
◆ package XFP
◆ a single power supply +3.3 V
◆ Operating temperature 0 ° C-70 ° C (commercial grade) -40 ° C -85 ° C (industrial grade)
◆ Telcordia (Bellcore) GR-468-CORE
◆ the Class1 specification products, in line with IEC60825-1 and IEC 60825-2 requirements
◆ RoHS compliant products

Xenpak ,x2 optical modules

Xenpak optical module  ( shown in Figure)

XENPAK-10GB-SR

Xenpak module is connected via 70pin SFP connector andcircuit board, the data channel XAUI interface; Xenpak support allIEEE 802.3ae-defined optical interface, the line side can provide10.3 Gb / s, 9.95 Gb / s or 4 × 3.125 Gb / s rate.

Xenpak transceiver module  is packaged in a 4.8 × 1.4 × 0.7 cubicinches of space, built-in 310 nm semiconductor distributed feedback (DFB) laser, direct modulation mode, built-in temperaturecontrol device. The Xenpak G.652 single-mode fiber transmission distance can reach 10 km, suitable for application in themetropolitan area, is the mainstream product of the current 10G Ethernet port. In addition to the photoelectric part of the multiplexing/ demultiplexing module (MUX / DEMUX) is the the Xenpak internal another important feature the Xenpak more than 50% of power is the multiplexing / demultiplexing module consumed, so Xenpak lightlarger module size, power consumption is also large.

The application of the Xenpak transceiver is relatively simple, only one optical module can realize 10G Ethernet optical interfacefunctions. The difficulty of circuit design is the design of high-speeddata interfaces, XAUI, XAUI interface, including eight pairs of rate of3.125 Gb / s, and serial, containing clock differential line. XAUI interface to the performance of a direct impact on the forwarding performance of the system.

Xenpak and X2 optical modules

X2-10GB-SR

Xenpak and X2 module are both  from the Xenpak standard evolution. Its internal function modules are basically same with Xenpak ,and the circuit board applications b are same too, also using one module to realize10G Ethernet optical interface functions. Due to the the Xenpak light module is installed on the circuit board when the circuit board slottedto achieve more complex, can not achieve the high-density applications. About half of the Xenpak and X2 optical modules volumeimproved after only Xenpak directly into the circuit board, it is applied to high-density rack systems and PCI card applications.

Xenpak and X2 optical modules can provide two types of circuit interface: XAUI and Serial Framer Interface (SFI-4), can be used for10G Ethernet ,also can  be used for OC-192 SDH and 10GFC. It can be said Xenpak and X2 have very similar standard, X2 changes reflected in the rail systemcompared Xenpak  . The industry generally believe that the two specifications will eventually integrate.

SFP module or transceiver tips

Outline

SFP package - hot-plug small package module, the highest rate of up to 10G, the use of the LC interface. SFP is an abbreviation of the SMALL FORM PLUGGABLE, can be simply understood as the upgrade version of GBIC. SFP module volume ratio is reduced by half than GBIC module.Other features of the SFP modules are same with GBIC. So sfp transceiver also be called  MINI-GBIC.

SFP transceiver ’s Category

By  the rate : 155M/622M/1.25G/2.125G/4.25G/8G/10G,most used in the market are :155M and 1.25G .The 10g sfp module ‘s demand is rising now.

By the wavelength:850nm/1310nm/1550nm/1490nm/1530nm/1610nm

The difference between single-and multimode

Multimode: almost all of the multimode fiber dimensions are50/125μm or 62.5/125μm, and bandwidth (fiber information transmission amount) is usually 200MHz to 2GHz. Multimode Opticalmulti-mode fiber transmission of up to 5 km. Light emitting diode orlaser light source. The ring-pull, or in vitro color is black.

Single-mode: the size of the single-mode fiber for 9-10/125μmunlimited amount of bandwidth and low loss characteristics, andcompared to the multi-mode fiber. Single-mode optical transceiver used for long distance transmission, and can sometimes reach 150-200 km. LD or narrow spectral line of the LED as a light source. Thering-pull, or in vitro color is blue, yellow or purple.

The difference and connection: single-mode fiber is cheap, but thesingle-mode device was expensive compared to similar multi-modedevices. Single-mode devices can usually run on a single-mode fiber, can also be run on a multi-mode fiber, multimode devices is limited to running on a multimode fiber.

10G module experience from the development of 300Pin, XENPAK, X2, XFP, and ultimately can transmit 10G signal with the same size of SFP  , which is called SFP +. SFP With miniaturization cost advantages to meet the demand for high-density equipment, optical module and pushed from the 2002 standard, 2010 has been 10G market mainstream replacing the XFP .

The advantages of SFP + optical module :
1, the SFP + has a more compact form factor than X2 and XFPpackages (SFP size);
2, the same type of XFP, X2, XENPAK direct connection;
3  low cost than the XFP, X2, XENPAK products.

The difference between the SFP + and SFP:
1, SFP and SFP + and the appearance of the same size;
2, SFP protocol specification: IEEE802.3, SFF-8472;

The difference between the SFP + and XFP:
1, the SFP + and XFP are 10G optical modules, and other types of 10G modules can communicate with each other;
2, the SFP + and XFP Dimensions;
3, because the smaller the SFP + signal modulation function, serial/ deserializer, the MAC, clock and data recovery (CDR) and electronic dispersion compensation (EDC) function from the module to the motherboard on the card;
4, the XFP compliance agreement: XFP MSA;
5, the SFP + compliance with the Protocol: IEEE 802.3ae, the SFF-8431 SFF-8432;
6, the SFP + is a more mainstream design.
3, SFP + protocol specification: IEEE 802.3ae, the SFF-8431, SFF-8432.

Using tips for optical transceiver module

Optical transceiver (SFP GBIC XFP) consists of optoelectronic devices, functional circuits, and optical interfaces, optoelectronic devices, including the transmitter and receiver parts. Part of the launch is: a certain bit rate input signal by the internal driver IC processing drive the semiconductor laser (LD) or light emitting diode (LED) emits the corresponding rate of the modulated optical signal with optical power within the automatic control circuit, The output optical signal power to maintain stability. The receiving part is: after a certain bit rate optical signal input module is converted to electrical signals by the light detection diode. After the preamplifier output signal of the corresponding bit rate signal, the output is generally PECL. Will output an alarm signal in the input optical power is less than a certain value.

1 optical transceiver classification
In accordance with the rate of sub-applications: Ethernet 100Base (Fast), 1000Base (Gigabit), 10GE
  SDH applications, 155M, 622M, 2.5G, 10G
Accordance with the package: 1 × 9, the SFF, SFP, GBIC, XENPAK, XFP
1 × 9 package - welding optical module, the general speed of not more than gigabit, multi-SC interface
SFF package --- welding small-package optical modules, the average speed is not higher than gigabit, multi-LC interface
GBIC package - hot-swappable Gigabit Interface optical module with SC connector
SFP package - hot-swap package module, the maximum data rate of up to 4G, the use of LC interface
XENPAK package - Application in Gigabit Ethernet, SC connector
XFP package - 10G optical modules used in Gigabit Ethernet, SONET and other systems, multi-LC interface
Laser type: LEDs, VCSELs, the FP LD, DFB L
In accordance with the emission wavelength: 850nm, 1310nm, 1550nm
Use: the non-hot-plug (1 × 9, SFF) hot-pluggable (GBIC, SFP, XENPAK, XFP)

2 the classification of fiber optic connectors and main specifications
The fiber optic connector is a connector on two of the section of the fiber are installed, mainly for optical wiring.
According to the type of fiber: single-mode fiber connector (usually G.652 fiber: Fiber diameter 9um, OD 125um), multimode fiber connectors
In accordance with the fiber optic connector, Connector type: FC, SC, ST, LC, MU, MTRJ, etc., commonly used in FC, SC, ST, LC,
FC - first developed by NTT. External reinforcement using metal fastening method for the turnbuckle. Test equipment is the choice of using connectors more.
SC type - developed by Japan's NTT molded plug coupling connector. The shell molding, made of molded glass fiber plastic, rectangular; pins made by precision ceramic coupling sleeve slotted casing structure for the metal. The fastening method using the plug pins, no rotation.
LC type - Lucent design. The tube diameter is 1.25mm, which is commonly used in the FC-SC, ST half of the tube diameter 2.5mm. Improve the density of the connector application.
In accordance with the fiber optic connector to connect the head pin end: PC, SPC, UPC, the APC
 According to the diameter of the fiber optic connector: Φ3 Φ2, Φ0.9

3 Important reason for optical module disable

The optical module malfunction divided into transmitter failure and receiver failure, analysis of the specific reasons, the most common problems concentrated in the following areas:
A. Pollution and damage of the optical port
Larger optical link loss caused by the pollution and damage of the optical interface, the optical link barrier. The causes are:
A. Optical module optical port is exposed to dust from entering the optical port and pollution in the environment;
B. The use of optical fiber connector end has been contaminated, the optical module optical ports secondary pollution;
C. Pigtailed improper use of the optical connector end face scratched;
D. Using low-quality fiber optic connectors;
A good optical module manufacturers - FiberStore
FiberStore finally adhere to the philosophy of science and technology innovation-led development, walking in the forefront of the field of optical communication technology. To provide our clients a full range of fiber optic transceiver modules: GBIC series, series of the SFP, the SFP + series, the XFP series, SFF Series, 1x9 Series, covering products from low speed to 10G. FiberStore’s GBIC, SFP, 10G optical modules provide products with Cisco, Huawei, 3COM, ZTE, Extreme, Foundry, Juniper, Kay Chong, Nortel, D-Link, many manufacturers China third-class switches, routers, servers, firewall product is fully compatible.
FiberStore provide all-GBIC, SFP, 10G products are stringent compatibility testing and performance testing, thus ensuring a first-class product quality. All sales of optical / electrical transceivers are committed to a three-year free warranty.

Cisco GLC-LH-SM optical modules

 Cisco GLC-LH-SM, cisco SFP , optical modules, single mode optical module (compatible)


Cisco GLC-LH-SM optical modules Description
Module Type: SFP
Transmission distance: 10KM
Transmission medium: single-mode fiber
A transmission wavelength: 1310nm
Interface types: LC
Transfer rate: 10.3Gb / s
Operating voltage: 3.3 / 5 V
Product Model: XFP-10GB-the LR
Product manufacturers: FiberStore
Cisco GLC-LH-SM optical modules range of applications: Cisco (Cisco) with SFP interface switches, routers, firewalls, ...

Cisco GLC-LH-SM optical modules Product Features

◆ fully comply with the SFP and SFF-8472 standard module;
◆ Comply FE/GBE/2GBE/FC/2FC/4FC/SDH/SONET;
◆ Comply with Telcordia (Bellcore) GR-468-CORE reliability requirements;
◆ Comply with industry standard RFT Electrical Connectorand Cage
◆ the Class1 specification products, in line with IEC60825-1 and IEC 60825-2 requirements;
◆ a single +3.3 V power supply and TTL logic interface;
◆ EEPROM and serial ID card;
◆ Working temperature: 0 ~ +70 ° C (commercial grade), -40 to +85 ° C (industrial grade);
◆ Low EMI (electromagnetic interference);
◆ hot-swappable, dual-LC connector
◆ 850nm VCSELs / FP / DFB, SM / MM;
◆ RoHS-compliant products;

Cisco GBIC optical module series

GBIC is the abbreviation of the Giga Bitrate Interface Converter is a gigabit electrical signal is converted to optical signal interface device. The GBIC design for hot swap. GBIC is interchangeable products meet international standards. Gigabit switch with GBIC interface design interchangeable flexible to account for a large market share in the market.

WS-G5484-GBIC Multi-mode optical module (850nm-1.25Gb/s-550M-SC)
WS-G5486 GBIC single mode optical module (1310nm-1.25Gb/s-10KM-SC)
WS-G5483 GBIC electrical port module (1.25Gb/s-100M-RJ45,)
WS-G5487 GBIC single mode optical module (1550nm-1.25Gb/s-80KM-SC)
CWDM-GBIC-1470 of CWDM-GBIC single mode optical module(1470nm-1.25Gb/s-80KM-SC)
CWDM-GBIC-1490 of CWDM-GBIC single mode optical module (1490nm-1.25Gb/s-80KM-SC)
CWDM-GBIC-1510 of CWDM-GBIC single mode optical module (1510nm-1.25Gb/s-80KM-SC)
CWDM-GBIC-1530 of CWDM-GBIC single mode optical module (1530nm-1.25Gb/s-80KM-SC)
CWDM-GBIC-1550 of CWDM-GBIC single mode optical module (1550nm-1.25Gb/s-80KM-SC)
CWDM-GBIC-1570 of CWDM-GBIC single mode optical module (1570nm-1.25Gb/s-80KM-SC)
CWDM-GBIC-1590 of CWDM-GBIC single mode optical module (1590nm-1.25Gb/s-80KM-SC)
CWDM-GBIC-1610 of CWDM-GBIC single mode optical module (1610nm-1.25Gb/s-80KM-SC)