Category Archives: Transceivers Common Sense

Knowledge of Multi-source Agreement


Fiber Optical TransceiverWe usually see some products that are compliant with MSA when refers to fiber optic transceivers, but what does MSA mean? It seems like a standard that is used to define the optical transceiver. In fact, MSAs are not official standards organizations. Instead, they are agreements that equipment vendors assume when developing form factors for communications interfaces. These form factors, usually called the transceiver modules, are typically deployed in active electronics such as switches, servers and multiplexers. In this text, some knowledge of the MSA will be introduced.

What is Multi-source Agreement?

MSA stands for multi-source agreement, which is an agreement between multiple manufacturers to make products which are compatible across vendors, acting as de facto standards, establishing a competitive market for interoperable products. Products that adhere to MSAs include optical transceivers (SFP, SFP+, XENPAK, QSFP, XFP, etc), fiber optic cables, and other networking devices. MSAs strictly define the operating characteristics of these optical transceivers so that system vendors may implement ports in their devices that allow MSA compliant transceivers produced by name brand, as well a third party vendors, to function properly. That is, transceivers may be purchased from any of the multiple sources in the open market, like Fiberstore. MSAs are also important in the cabling industry as the density, line speed, power consumption and typical costs of a MSA can strongly impact its success in the marketplace. This, in turn, can drive the choice for both connector and media type.

Why is Multi-source Agreement  so Important?

Equipment vendors all rely on MSAs when designing their systems, ensuring interoperability and interchangeability between interface modules, that is every supplier can produce the transceiver modules with the same functions. For this reason, there are many module suppliers from which customers can choose freely. As we all know, freedom of choice is the foundation of the efficient operation of markets. In order to gain a bigger share of the market, suppliers may act as efficiently as possible, which may drive down costs and offer the widest options to customers. Besides, since there are so many excellent 3rd party optical transceiver module suppliers in the market that network operators don’t need to purchase optical transceivers directly from system (original brand) vendors, which will also save huge costs. Finally, there is no doubt that all these will help support and encourage creation and adherence to standards at the same time. Over the past decade, the MSA process has helped accelerate the acceptance of modules such as SFP+ and CFP, which allow optical transceivers to support greater bandwidth such as 40G and 100G.

Approved Fiber Optica Transceiver Multi-source Agreements

MSA is a popular industry format jointly developed and supported by many network component vendors, most common optical transceivers are specified by it at present. MSAs usually specify parameters for optical transceivers and their guideline values, such as the electrical and optical interfaces (e.g. SX, LX, EX, ZX, etc), mechanical dimensions, electro-magnetic values and other data. This data is accessible by the host system over the I2C interface, as is the status of the optional DDM functions. Some approved fiber optica transceiver multi-source agreements are listed in the table below:

Name Year Brief Description Keywords/Applications
GBIC 2000 GigaBit Interface Converter Designed for Gigabit Ethernet, SDH/SONET (2.5 Gb/s) and Fibre Channel (4Gb/s). Superseded by SFP
SFP 2001 Small Form-factor Pluggable Designed for Gigabit Ethernet, SDH/SONET (2.5 Gb/s) and Fibre Channel (4Gb/s)
XENPAK 2001 Fiber optic transceiver for 10Gb Ethernet Superseded by X2 and SFP+
X2 2005 Fiber optic transceiver for 10Gb Ethernet Superseded by SFP+
XFP 2005 Fiber optic transceiver for 10Gb Ethernet Designed for 10Gb/s. Supports 8Gb/s Fibre Channel, 10 Gb/s Ethernet and Optical Transport Network
SFP+ 2013 Fiber optic transceiver for 10Gb Ethernet Designed for 10Gb/s. Supports 8Gb/s Fibre Channel, 10 Gb/s Ethernet and Optical Transport Network standard OTU2
QSFP/QSFP+ 2013 Quad Small Form-factor Pluggable 40G Supports Ethernet, Fibre Channel, InfiniBand and SONET/SDH standards up to 40GB/s and 100Gb/s
CFP 2013 C Form Factor Pluggable (100G) Optical transceiver form factors supporting 40Gb/s and 100Gb/s. CFP, CFP2 and CFP4
CXP In Progress C Form Factor Pluggable Supports Infiniband and Ethernet to 100G. CXP and CXP2

A Complete Guide of Installing or Removing Transceiver Modules (Part III)


Monday again, welcome to my blog. This week, we are going to finish the topic “A Complete Guide of Installing or Removing Transceiver Modules”. As we know, we continue this topic for almost three weeks, and today, we will explain the Part III, ie. the last part. The Part III is explaining mainly the installation and remove of QSFP/QSFP+ and CFP.

After learning the Part I and Part II, you may have a better understanding of installing or removing transceiver modules, such as SFP, X2, GBIC, XENPAK or XFP etc. You may also find that the different transceivers are similar in the installing or removing steps. Nonetheless, there is unique feature of different transceiver modules which affect the installing and removing, so that we should be carefully and understand each type of transceiver. OK, now we are return to today’s main topic – How to Install or Remove the QSFP/QSFP+ and CFP.

How to Install or Remove QSFP/QSFP+ Transceiver Module

QSFP/QSFP+ Installing Steps
step 1: Attach an ESD wrist strap to yourself and a properly grounded point on the chassis or the rack.
step 2: Remove the QSFP+ transceiver module from its protective packaging.
step 3: Check the label on the QSFP+ transceiver module body to verify that you have the correct model for your network.
step 4: For optical QSFP+ transceivers, remove the optical bore dust plug and set it aside.
step 5: For transceivers equipped with a bail-clasp latch:
a. Keep the bail-clasp aligned in a vertical position.
b. Align the QSFP+ transceiver in front of the module’s transceiver socket opening and carefully slide the QSFP+ transceiver into the socket until the transceiver makes contact with the socket electrical connector.

step 6: For QSFP+ transceivers equipped with a pull-tab:
a. Hold the transceiver so that the identifier label is on the top.
b. Align the QSFP+ transceiver in front of the module’s transceiver socket opening and carefully slide the QSFP+ transceiver into the socket until the transceiver makes contact with the socket electrical connector.

step 7: Press firmly on the front of the QSFP+ transceiver with your thumb to fully seat the transceiver in the module’s transceiver socket.
Please Note: If the latch is not fully engaged, you might accidentally disconnect the QSFP+ transceiver module.

step 8: For optical QSFP+ modules, reinstall the dust plug into the QSFP+ transceivers optical bore until you are ready to attach the network interface cable. Please Note: Do not remove the dust plug until you are ready to attach the network interface cable.

QSFP/QSFP+ Removing Steps
step 1: For optical QSFP+ transceivers, disconnect the network interface cable from the QSFP+ transceiver connector.
step 2: For QSFP+ transceivers equipped with a bail-clasp latch.
a. Pivot the bail-clasp down to the horizontal position.
b. Immediately install the dust plug into the transceivers optical bore.
c. Grasp the sides of the QSFP+ transceiver and slide it out of the module socket.

step 3: For QSFP+ transceivers equipped with a pull tab latch
a. Immediately install the dust plug into the transceiver’s optical bore.
b. Grasp the tab and gently pull to release the transceiver from the socket.
c. Slide the transceiver out of the socket.

step 4: Place the QSFP+ transceiver into an antistatic bag.

How to Install or Remove CFP Transceiver Module

CFP Installing Steps
step 1: Remove the CFP transceiver from its protective packaging.
step 2: Check the label on the CFP transceiver body to verify that you have the correct model for your network.
step 3: Remove the dust plug from the CFP transceiver module optical port and set it aside.
step 4: Align the CFP device into the transceiver port socket of your networking module, and slide it in until the CFP transceiver EMI gasket flange makes contact with the module faceplate.
step 5: Press firmly on the front of the CFP transceiver with your thumb to fully seat it in the transceiver socket.
step 6: Gently tighten the two captive installation screws on the transceiver to secure the CFP transceiver in the socket.
step 7: Reinstall the dust plug into the CFP transceiver’s optical bore until you are ready to attach the network interface cable.
step 8: When you are ready to attach the network cable interface, remove the dust plugs and inspect and clean fiber connector end faces, and then immediately attach the network interface cable connectors into the CFP transceiver optical bores.

CFP Removing Steps
step 1: Disconnect the network fiber-optic cable from the CFP transceiver connectors. Immediately reinstall the dust plugs in the CFP transceiver optical bores.
step 2: Loosen the two captive installation screws that secure the CFP to the networking module.
step 3: Slide the CFP transceiver out of the module socket. Immediately place the CFP transceiver in antistatic protective packaging.

Author’s Note
Up to here, the topic “A Complete Guide of Installing or Removing Transceiver Modules” has already finished. Thanks all the reader for continued focusing. In fact, the installing or removing steps of the mentioned transceiver modules are the general case. Different transceiver modules of different brands have their own features. We should ask the vendor to get more informations when you face a problem that we do not mentioned here. In addition, to save more money, we suggest that compatible 3rd transceiver modules may be another good choice but you should ensure that your vendor is reliable. Fiberstore‘s fiber optic transceivers are 100% compatible with major brands like Cisco, HP, Juniper, Nortel, Force10, D-link, 3Com. They are backed by a lifetime warranty so that you can buy with confidence. Additionally, customize optical transceivers to fit your specific requirements are available. If you have any requirement of transceivers, Fiberstore will be a good choice for you.

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Popular 10G Transceivers: 10G XENPAK, 10G X2, 10G XFP, 10G SFP+


10G transceivers are designed for 10G or 10Gbit/s data transmission applications including 10 Gigabit Ethernet, 10 Gbit/s Fiber Channel, Synchronous optical networking. After years of 10 Gigabit Ethernet’s existence, there has been various different form factors and optics types introduced.

Nowadays, 10G transceivers series mainly includes 10G XENPAK, 10G X2, 10G XFP and 10G SFP . XENPAK was the very first MSA for 10GE coupled with been the biggest form factor. X2 was later competing standards with smaller form factors. XFP came after X2 and it is also smaller. SFP offer a smaller form factor and also the ability to offer 1G/10G combo ports on hardware. This is a guide to these module types and optical standards currently available.


10G XENPAK is one of the first generation 10G transceivers. It supports all optical ports as defined in IEEE 802.3ae, supporting speed 10.3 Gb/s,9.95 Gb/s or 3.125 Gb/s. XENPAK modules designed XAUI interface and knowledge shaping (CDR) function, which comply with the XENPAK MSA protocol and satisfy the application of 802.3ae Ethernet protocol 10GB. The 10G XENPAK optical modules include XENPAK 10GBASE-SR 300 meters (multimode OM3 fiber), XENPAK 10GBASE-LRM multimode fiber 220 meters, XENPAK 10GBASE-LR single-mode fiber 10-20km, XENPAK 10GBASE-ER single-mode fiber 40 km, XENPAK 10GBASE-ZR single-mode fiber 80km.

10G X2

10G X2 is another original 10G transceiver, which defines a smaller form-factor 10 Gb/s pluggable fiber optic transceiver optimized for 802.3ae Ethernet,ANSI/ITUT OC192/STM- 64 SONET/SDH interfaces,ITUT G.709,OIF OC192 VSR,INCITS/ANSI 10GFC (10 Gigabit Fibre Channel) and other 10 Gigabit applications.X2 is initially centered on optical links to 10 kilometers and is ideally suited for Ethernet,Fibre Channel and telecom switches and standard PCI (peripheral component interconnect) based server and storage connections. X2 is physically smaller than XENPAK but maintains the mature electrical I/O specification based on the XENPAK MSA and continues to provide robust thermal performance and electromagnetic shielding. The 10GB X2 fiber optic transceivers series include X2-10GB-SR, X2-10GB-LR, X2-10GB-ER and X2-10GB-ZR, they are designed based on the X2 MSA and IEEE802.3ae. They’re created for the integrated systems solution provide, fiber optics distributor along with other IT distributors.


XFP is really a standard for transceivers for high-speed computer network and telecommunication links which use optical fiber. They sometimes operate at near-infrared wavelengths (colors) of 850 nm, 1310 nm or 1550 nm. Principal applications include 10 Gigabit Ethernet, 10 Gbit/s Fibre Channel, synchronous optical networking (SONET) at OC-192 rates, synchronous optical networking STM-64, 10 Gbit/s Optical Transport Network (OTN) OTU-2, and parallel optics links. They can operate over a single wavelength or use dense wavelength-division multiplexing techniques. They include digital diagnostics that provide management which were added to the SFF-8472 standard. XFP modules make use of an LC fiber connector type to achieve high density. The 10G XFP fiber optic transceivers series include XFP-10G-MM-SR, XFP-10GLR-OC192SR, XFP-10GER-OC192IR and XFP-10GZR-OC192LR.

10G SFP+

10G SFP+ transceiver, the latest version of 10G transceivers, is multi-purpose optical module for 10Gbit/s data transmission applications at 850nm, 1310nm and 1550nm. The transceivers are ideally suited for datacom and storage space network (SAN/NAS) applications based on the IEEE 802.3ae and Fibre Channel standards, Fiber Channel 10G, 8.5G, 4.25G, 2.125G, 1.0625G, 10G BASE-SW/SR/LR/ER, 1000Base-SX Ethernet. The 10G SFP fiber optic transceivers series include SFP-10G-SR, SFP-10G-LRM, SFP-10G-LR, SFP-10G-ER, SFP-10G-ZR, SFP-10G-LW, SFP-10G-LH, SFP-10G-LX and SFP-10G-ZW.

Some Common Pluggable Fiber Optic Transceivers Type


There are so many transceivers in FiberStore.Such as SFP Plus transceiver, X2 transceiver, XENPAK transceiver, XFP transceiver, SFP transceiver module (Mini GBIC), GBIC transceiver and so on. But what are fiber optic transceivers do you know? Fiber optic transceiver is a short distance to long distance twisted pair electrical signals and optical signals to be interchanged Ethernet transmission media conversion unit, in many places, also known as media converter. Products are generally used in an Ethernet cable can not be covered, you must use the fiber to extend the transmission distance of the actual network environment, and is usually located in the metropolitan area of broadband access layer applications; while helping the fiber last mile connections to the metro network and more on the outer layer of the network also played a huge role.

In order to ensure the card with other manufacturers, repeaters, hubs and switches and other network equipment is fully compatible fiber optic transceiver products must strictly comply with 10Base-T, 100Base-TX, 100Base-FX, IEEE802.3 and IEEE802.3u Ethernet, etc. web standards, in addition, anti-electromagnetic radiation in the EMC aspects should meet FCC Part15. As the major carriers are efforts to build community networks, campus networks and enterprise networks, so the amount of fiber optic transceiver products are constantly improved in order to better meet the access network construction.

Now on the market most of the optical transceiver supports Pluggable, So, today I will show you some common Pluggable fiber optic transceivers type:

SFP (Small Form-factor Pluggable) Transceiver Module
1,Gigabit optical module, FE SFP optical module, 155Mb SFP optical module, 622Mb SFP optical module, 2.5G SFP optical module: Small pluggable optical transceiver module, LC connector.
2,Gigabit BIDI optical module,Mbps BIDI optical module: BIDI (bidirectional transmission) optical transceiver module, LC connector.
BIDI GEPON OLT optical modules: BIDI GEPON OLT optical transceiver module, SC connector.
3,Gigabit CWDM optical modules: Gigabit CWDM (Coarse Wavelength Division Multiplexing) optical transceiver module, LC connector.
4,Gigabit SFP electrical interface module: RJ-45 Interface
5,Gigabit SFP cable: dedicated to interconnecting devices, hot-swappable

SFP + (10 Gigabit Small Form-factor Pluggable)Transceiver Module
1, SFP + optical modules:10 Gigabit sfp+ module LC interface
2, SFP + cables: dedicated to interconnecting devices, hot-swappable

GBIC (Gigabit Interface Converter, Gigabit Ethernet Interface Converter) Transceiver Module
1, GBIC transceiver modules: hot-pluggable optical transceiver module SC interface
2, GBIC electrical interface modules: hot-pluggable and RJ-45 interface
3,GBIC stacking module: dedicated to interconnecting devices, hot-swappable HSSDC(High Speed Serial Data Connection) Interface

XFP (10 Gigabit Small Form-factor Pluggable,10 Gigabit Ethernet interfaces small pluggable) Transceiver Module
XFP module is 10 Gigabit Ethernet interfaces small pluggable optical transceiver module LC interface

XENPAK (10 Gigabit Ethernet Transceiver Package,10 Gigabit Ethernet interface transceiver collection package) module
Optical transponder, hot-swappable, SC Interface

Different Angles To Understand XFP Transceiver


What is the XFP Transceiver?

The XFP transceiver (10 Gigabit Small Form Factor Pluggable) is a standard optical transceivers for high-speed computer network and telecommunication links that use optical fiber. It was defined by an industry group in 2002, along with its interface to other electrical component switch is called XFI. A XFP module is a device comprising both a transmitter and a receiver which are combined and share common circuitry or a single housing.

xfp transceiver

The XFP Transceiver Development

The XFP specification was developed by the XFP Multi Source Agreement Group. It is an informal agreement of an industry group, not officially endorsed by any standards body. The first preliminary specification was published on March 27, 2002. The first public release was on July 19, 2002. It was adopted on March 3, 2003, and updated with minor updates through August 31, 2005.

The XFP Transceiver Detail Info

1. XFP modules are hot-swappable and protocol- independent.

2. They typically operate at optical wavelengths (colors) of 850 nm, 1310 nm or 1550 nm.

3. Principal applications include 10 Gigabit Ethernet, 10 Gbit /s Fibre Channel, Synchronous optical networking (SONET) at OC-192 rates, Synchronous optical networking STM-64, 10 Gbit /s Optical Transport Network (OTN) OTU-2, and parallel optics links.

4. They can operate over a single wavelength or use dense wavelength-division multiplexing techniques.

5. They include digital diagnostics that provide management that were added to the SFF-8472 standard.

6. XFP modules use an LC fiber connector type to achieve high density.

The XFP Transceiver Accessories

The XFP product line is designed to support 10 Gigabit Fibre Channel, 10 Gigabit Ethernet and OC192/STM-64. Constructed from a metal frame, the cage assembly is designed to be bezel-mounted to an I/O panel with compliant pins for pressing onto the host PCB. The cage assembly features four EMI gaskets, which block any EMI emissions emanating from the transceiver when installed. The front flange provides a flat surface to contact the EMI gasket (attached to the perimeter of the bezel cutout) and stabilizes the cage assembly during insertion and extraction of the transceiver. Heat sinks are optional for applications requiring increased heat dissipation and are attached to the cage assembly using a clip.

The XFP Transceiver Work

XFP modules 10Gb/s (XFP) transceivers are compliant with the current XFP Multi-Source Agreement (MSA) Specification. XFP modules typically operate at near-infrared wavelengths (colors) of 850 nm, 1310 nm or 1550 nm. Principal applications include 10 Gigabit Ethernet, 10 Gbit/s Fibre Channel, OC-192 rates, STM-64, 10 Gbit/s Optical Transport Network (OTN) OTU-2. FiberStore provide a full range of XFP Modules, including DWDM XFP, CWDM XFP, BiDi XFP,10G XFP and compatible Cisco XFP, Juniper XFP, Brocade XFP, ect. FS.COM XFP modules use an LC fiber connector type to achieve high density.

Some Types for GBIC Transceivers


GBIC is short for gigabit interface converter, it is a media conversion device between Gigabit Ethernet and fiber optic networks, via the GBIC transceiver, Gigabit network equipment can directly connect to copper wires, single mode fiber ports or multimode fiber ports. The data transfer rate is one gigabit per second (1 Gbps) or more.

The Cisco® Gigabit Interface Converter (GBIC) is a hot-swappable input/output device that plugs into a Gigabit Ethernet port or slot, linking the port with the network. From FS.COM, we provide a full range of Cisco GBIC transceiver modules. There are many types for GBIC transceivers, such as Cisco WS-G5483,Cisco WS-G5484,Cisco WS-G5486,Cisco WS-G5487 and so on.

Cisco WS-G5483 (Copper) GBIC Transceiver

The Cisco WS-G5483 (1000BASE-T GBIC Transceiver) connects a GBIC port to Category 5 wiring using a standard RJ-45 interface. The maximum Category 5 wiring distance is 328 feet (100 m).Cisco WS-G5483, also called copper GBIC transceiver, is an ideal solution for Catalyst switch customers.

Cisco WS-G5484 (Short Wavelength) GBIC Transceiver

The Cisco WS-G5484 GBIC (1000BASE-SX GBIC Transceiver) operates on legacy multimode fiber (MMF) optic link spans up to 1804 feet (550 m) and on laser-optimized multimode fiber (OM3) optic link spans up to 3281 feet (1 km).The 1000BASE-SX is a short wavelength GBIC module.

Cisco WS-G5486 (Long Wavelength/Long Haul) GBIC Transceiver

The Cisco WS-G5486 (1000BASE-LX/LH GBIC Transceiver) fully complies with the IEEE 802.3z 1000BASE-LX10 standard. It allows for reaches up to 6.2 miles (10 km) over single-mode fiber (SMF) and up to 550 meters over multimode fiber (MMF). The long wavelength/long haul GBIC module is Cisco WS-G5486.

Cisco WS-G5487 (Extended Wavelength) GBIC Transceiver

The Cisco WS-G5487(1000BASE-ZX GBIC Transceiver) operates on ordinary single-mode fiber optic link spans up to 43.5 miles (70 km) long. Link spans of up to 62 miles (100 km) are possible using premium single-mode fiber or dispersion shifted single-mode fiber(premium single-mode fiber has a lower attenuation per unit length than ordinary single mode fiber; dispersion-shifted single-mode fiber has both lower attenuation and less dispersion). The GBIC provides an optical link budget of 21 dB – the precise link span length will depend on multiple factors such as fiber quality, number of splices, and connectors.

When shorter distances of single-mode fiber are used, it might be necessary to insert an in-line optical attenuator in the link to avoid overloading the receiver:

A 5-dB or 10-dB inline optical attenuator should be inserted between the fiber-optic cable plant and the receiving port on the Cisco 1000BASE-ZX GBIC at each end of the link whenever the fiber-optic cable span is less than 15.5 miles (25 km)

Note: The 1000BASE-ZX GBIC module provide an optical power budget of 21.5 dB. You should measure your cable plant with an optical loss test set to verify that the optical loss of the cable plant (including connectors and splices) is less than or equal to 21.5 dB. The optical loss measurement must be performed with a 1550-nm light source.

Function And knowledge With GBIC Transceiver Modules


Gigabit Interface Converter referred to as GBIC, Gigabit convert electrical signals to optical signals interface device. GBIC transceiver is probably the many types of optical transceivers that will send and receive data. GBIC module is designed for hot-swappable. GBIC interchangeable products meet international standards. The GBIC interface design Gigabit switch interchangeable flexible to take into account a sizable market share available in the market.

GBIC module

Functions of GBIC Module

The GBIC transceiver functions being an input/output transceiver. It plugs into the gigabit Ethernet port on a single end, for instance a port found on network switching equipment. On the other end, the transceiver is attached to the fiber optic network, usually via fiber optic patch cords. The unit is seen as a features, including the wavelengths it can handle, how fast and efficiently it transmits data, the energy it needs to operate, and what distance it could transmit data over. These are the basic main considerations when purchasing a GBIC transceiver to make sure it meets network performance requirements.

Other important features of a GBIC transceiver which increase energy efficiency initiatives are how the unit offers low power dissipation and emits little electromagnetic interference. Each device can install and performance without disrupting anything, but this plug and play capability could be offset by the need to disconnect patch cords before it is installed or removed. Harmful electrical currents and data discrepancies can happen, and it is usually wise to take precautions to avert this whenever you can, specifically in high-density networks.

Transfer Speed of GBIC Module

Data rates vary on GBIC module model specifications, but they have a the least 1 gigabit per second. Manufacturers, such as Cisco, make GBIC modules with varying transfer speeds.

Signal Conversion of GBIC Module

The GBIC can be a module which is plugged into a device that generates electrical signals and in to a device that generates optical signals. The GBIC converts both signals backwards and forwards as needed by the devices. The GBIC even offers identification and system information which allows each device to learn the other’s capabilities.

Uses of GBIC Module

A GBIC module allows an individual to reconfigure fiber links, configure tailor receiver costs, link networking distances and organize network topologies based on set requirements. Utilized on a fiber optic or perhaps an Ethernet system, GBIC modules can be upgraded, substituted or plugged in without switching off the pc. This flexibility eliminates the need to replace entire system networking boards.

Many supplies sell GBIC transceivers. Fiberstore supply various kinds of GBIC module 100% compatible with Cisco GBIC Module, HP GBIC, 3COM GBIC, Netgear GBIC, Nortel GBIC, Extreme GBIC. CWDM GBIC, BIDI GBIC, Mini GBIC are also in stock.We not only supply the GBIC transceivers, but also have other fiber optic transceivers(for example, XENPAK modules, SFP modules, XFP module ).

The Detail For RJ45 Interface Connector


In this network era, the connector has been becoming more and more popular in our life. All kinds of copper wires and fiber optic cables are likely to require corresponding connectors such as RJ45 connectors/plugs and fiber connectors. Here, we focus on the connector for RJ45 Interface involved with RJ45 Ethernet cable.

What Is RJ45 Interface Connector?

Commonly known as “crystal head” given its appearance, RJ45 interface connector is a kind of component that can insert along a fixed direction into a RJ45 interface and can prevent loss of plastic connectors automatically. RJ45 is a kind of network interface specification (similar to RJ11 interface, commonly used as “telephone interface” to connect telephone lines). Crystal head is suitable for the equipment or horizontal subsystem field termination, shell material with high density polyethylene. Both ends of the twisted pair must be installed RJ45 plug to plug the RJ45 connector on the RJ45 interface card (NIC), the hub or switch on RJ45 interface, for network communication. Each of the twisted pair at both ends by installing crystal head with NIC connected to a hub (or switch). RJ45 interface is typically used for data transmission, the most common application interfaces for the network card.

RJ45 Interface Connector

Line Sequence for Network Cable Cords

The RJ45 network cord, made up of a total of eight core, is widely used in LAN and ADSL broadband Internet between network devices for network cable connection. It is often inserted into a RJ45 interface connector to form a RJ45 Ethernet cable.

There are two connection orders  (line sequence) for the eight cores. Normally, the two line sequence were referred to as T568A line order and T568B wire order in the specific application. One order for T568A is white green, green, white orange, blue, white blue, orange, white brown, brown; the other is white orange, orange, white green, blue, white blue, green, white brown, brown.


RJ45 Interface Connector Types

Common RJ45 connector can be divided into two categories: DTE type used in Ethernet card, router, etc., and the DCE type used in switches, etc. DTE is called “data terminal equipment”, DCE is known as “data communications equipment”. In a sense, DTE device known as the “active communication equipment”, DCE devices referred to as “passive communication equipment”. When two types of devices using RJ45 interface connection communication, one must use a crossover cable connection.


In network products, network cable and RJ45 connector may be ordinary but necessary. Although Internet cable and crystal head is not important things, but if the quality of cable with crystal head is not good, then you will often meet all kinds of puzzling problem when surfing the Internet for transmission and the exchange of important data. So the choice and buying of cables and crystal head is important as well. By the way, FS.COM offers RJ45 Plugs with high quality and have superior performance in your networking system.

Related Articles:
How to Choose and Buy the Best Ethernet Cable
Difference of Straight Through and Crossover Cable
Patch Cable vs. Crossover Cable: What Is the Difference?
Quick View of Ethernet Cables Cat5, Cat5e And Cat6

XFP vs SFP+ Transceivers


Fiber optic transceiver module is a self-contained component that can both transmit and receive. Each of these physical form-factors is defined in a standards document know as a Multi-Source Agreement, or MSA. Optical Transceivers types can be generally grouped into those supporting transmission speeds on the order of 1Gbps and those designed to support rates in the range of 10Gbps. Optical transceivers form factors associated with 10Gbps transmission are: XFP, X2, XENPAK and SFP+. This post is focus on what’s XFP, what’s SFP+, XFP vs SFP+, and what’s the difference?

FiberStore Provide 10G SFP Plus Transceiver Versus XFP Transceiver

What’s XFP Transceiver?

XFP transceiver is a small form factor hot pluggable module designed for 10G network applications including 10Gig Ethernet and fibre channel. XFP transceivers are with dual LC interface and the industrial acknowledged standards for XFP is called XFP MSA. XFP is a hot-swappable and protocol independent module. It means that you can replace the component without shutting down the whole system. XFP can be replaced without interrupting the operation of your system. Its usual operation is at optical wavelengths of 850 nm, 1310 nm, or 1550 nm. To be able to install this module in your computer, you should have one of these: 10 Gigabit Ethernet, 10 Gbit/s Fibre Channel, Synchronous Optical Networking at OC-192 rates, Synchronous Optical Networking STM-64, 10 Gbit/s Optical Transport Network OTU-2, and parallel optics links. XFP modules are able to function with just a single wavelength or dense wavelength division multiplexing techniques.

What’s SFP+ Transceiver

Comparing with other 10G modules such as XFP, X2 and Xenpak, SFP+ transceiver is the smallest 10G form factor.SFP+ module is interchangeable with SFP module and can be used in the same cages as SFP module.SFP plus is an upgraded version of the small form pluggable transceivers.SFP(small form-factor pluggable) is a compact, hot-pluggable transceiver used for both telecommunication and data communications applications. The electrical interface to the host board for SFP module and SFP+ module is the same serial.

XFP vs SFP+, What’s the difference?

SFP transceiver modules and XFP transceiver modules have some different,such as the size and speed,SFP is smaller in size than XFP,and the XFP carries more speed then SFP.And they also have the same,they are similar in design.

From FiberStore,we provide a full range of optical transceivers, such as SFP Plus transceiver, X2 transceiver, XENPAK transceiver, XFP transceiver, SFP transceiver, GBIC transceiver, CWDM/DWDM transceiver, and PON transceiver. We also can customize optical transceivers to fit your specific requirements. If you want to know more fiber optic transceivers information,please visit our or focus on our blog.

Overview 10G SFP+,X2,XENPAK and XFP Transceiver Modules


PriceCable offers a full range of Industry compliant SFP+,Xenpak, X2 and 10G XFP transceiver for 10 Gigabit Ethernet deployments.In computer networking,we know that 10 gigabit Ethernet (10GE or 10GbE or 10 GigE) refers to various technologies for transmitting Ethernet frames at a rate of 10 gigabits per second (10×109 or 10 billion bits per second), first defined by the IEEE 802.3ae-2002 standard.

Xenpaks are supported on routers and some Catalyst switches. The small formfactor X2s are supported on the Catalyst Switches. XFPs are supported on routers with Shared Port Adapter (SPA).They provide customers a dual-rate interface for 10 Gigabit Ethernet and Packet-over-SONET/SDH (POS) connectivity.

10 Gigabit Modules

10G SFP+ Modules:

PriceCable 10G SFP+ transceivers are designed for the high performance integrated duplex data transmission over single mode optical fiber. The improved small form-factor pluggable(SFP+) is definitely an enhanced version of the SFP that supports data rates as much as 10 Gbit/s, the newest industry format supported by many network component vendors. The 10GBASE SFP+ modules offer customers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications.

10G X2 Modules:

10G X2 Module is a type of 10 Gigabit Ethernet optical transceiver. X2 transceiver is based on Xenpak transceiver module, and it has same function with Xenpak transceiver. X2 Module also can use one transceiver to fulfill all 10G Ethernet optical port function. X2 Transceiver is better for density installation for it is only half size of Xenpark transceivers.Its electrical interface for that host board can also be standardized and it is called XAUI (4 x 3.125 Gb/s).

10G XENPAK Modules:

10G XENPAK Module is a highly integrated, Serial optical transponder module for high-speed, 10Gbit/s data transmission applications. Xenpak transceiver is packed in a 4.8 x 1.4 x 0.7 inch package, use DFB laser components, Xenpak working distance via G652 multimode fiber could reach up to 10km, another important components inside the Xenpak is the MUX/DEMUX parts, it consume 50% of the power and result in the bigger size. XENPAK modules are offered for physical layer interfaces supporting multi-mode and single mode fiber optic cables and InfiniBand copper cables with connectors referred to as CX4. Transmission distances vary from 100 metres (330 ft) to 80 kilometres (50 mi) for fiber and as much as 15 metres (49 ft) on CX4 cable. Newer XENPAKs while using 10GBase-LX4 standard operated using multiple wavelengths on legacy multi-mode fibres at distances of up to 300 metres (980 ft), eliminating the necessity to reinstall cable in a building when upgrading certain 1 Gbit/s circuits to 10 Gbit/s.

10G XFP Modules:

The 10GB XFP transceiver module is a hot-swappable I/O device that plugs into 10-Gigabit ports. The XFP is a standard for transceivers for high-speed computer network and telecommunication links which use optical fiber, and its interface to other electrical components which is called XFI. XFP modules typically operate at near-infrared wavelengths (colors) of 850 nm, 1310 nm or 1550 nm.XFP modules make use of an LC fiber connector type, which makes it easily achieve high port density applications.

PriceCable is an original manufacturer of fiber optic transceivers. Our Optical Transceiver supports Ethernet, Fibre Channel, and Sonet/SDH applications across many switching and routing platforms. If you have any needs for 10G SFP+ Modules, please feel free to contact us.