Three Different Types of Transceivers

There are numerous types of transceivers available that can be used in a variety of applications including radio applications and telecommunications applications. Different specifications and designs are employed to meet the changing needs of designers. This article will introduce three primary types of transceivers used in today’s telecommunication systems.

SFP Transceiver

The small form-factor pluggable (SFP) is a compact and hot-pluggable transceiver used for both telecommunication and data communications applications. The form factor and electrical interface are specified by a multi-source agreement (MSA). It interfaces a network device motherboard (for a switch, router, media converter or similar device) to a fiber optic or copper networking cable. SFP was one of the most popular versions of transceivers until the enhanced version was introduced. Select the SFP devices for the best results.

Fiberstore’s SFP transceivers are available for designers to use in a variety of applications. These transceivers come in a variety of transmitter and receiver types. Users can select an appropriate transceiver by reviewing several different categories. Some common categories include: copper and fiber, single-mode and multi-mode, SX (transmits up to 550m at 1.25 Gb/s), LX (transmits up to 10 km), and BX (transmits up to 10 km). For example, HP J8177C compatible 1000BASE-T SFP copper transceiver is high performance and cost-effective transceiver for 100m distance over Cat 5 UTP cable.

SFP+ Transceiver

The enhanced small form-factor pluggable (SFP+) is an enhanced version of SFP and is designed to support data rates up to 10 Gbit/s. SFP+ was designed to have higher port density compared to SFP. The SFP+ specification was first published on May 9, 2006, and version 4.1 published on July 6, 2009. SFP+ supports 8Gbit/s Fiber Channel, 10 Gigabit Ethernet and Optical Transport Network standard OTU2. The SFP+ product family includes cages, connectors, and copper cable assemblies. The SFP+ transceiver modules are specified for 8Gbps/10Gbps/16Gbps Fiber Channel and 10-Gigabit Ethernet applications. In addition, they have the ability to connect to a variety of different types of optical fiber and are highly flexible. That’s why they are so desirable to designers.

XFP Transceiver

XFP transceiver is a hot-pluggable and protocol-independent 10 Gbit/s optical transceiver designed to help drive cost and power consumption out of 10 Gbit/s optical networking applications. This particular XFP specification was developed by the XFP Multi-Source Agreement Group. XFP transceivers are capable of operating at wavelengths of 850 nm, 1310 nm, and 1550 nm. They are capable of operating at a single wavelength or through the use of dense wavelength-division multiplexing techniques.

There are a variety of transceiver types available, but the most popular ones include: SR (850 nm and can transmit up to 300 m), LR, ER, and ZR. LR is 1310 nm and can transmit distances up to 10 km. For example, Juniper XFP-10G-L-OC192-SR1 compatible 10GBASE-LR XFP transceiver from Fiberstore operates at a wavelength of 1310 nm at up to 10km links. ER is characterized by 1550 nm and can transmit distances of 40 km. ZR can transmit distances up to 80 km. Designers prefer to use XFP packaging because it has a smaller footprint than other devices.

Choose the Best Transceiver for Your Design

There are also other types of transceivers apart from the above-mentioned. Since there are so many types of transceivers, try to find the best transceiver for your design and applications. When the design is optimized, everything seems to fall into place for the end user. The reliability of your design will improve, and your end-user will reap the benefits of a system that will stand the test of time and the rigors of a stressful environment.

How to Install and Remove SFP Transceivers

The small form-factor pluggable (SFP) is a compact, hot-pluggable transceiver used for telecommunication and data communications. The form factor and electrical interface are specified by a multi-source agreement (MSA). It interfaces a network device motherboard (for a switch, router, media converter or similar device) to a fiber optic or copper networking cable. SFP transceivers can support SONET, Gigabit Ethernet, Fibre Channel, and other communications standards. SFP transceivers are upgraded from the traditional version with more flexibility but a smaller size.

Sometimes you may encounter the affairs like installing or removing fiber-optic SFP modules with cables attached. In fact, this is wrong. Because that way may cause damage to the cables, the cable connector, or the optical interfaces in the SFP module. Disconnect all cables before removing or installing an SFP module. Followings are some tips when installing and removing SFP transceivers.

Installing SFP Transceivers

The following steps tell how to install SFP transceivers:
1. Attach an ESD-preventive wrist strap to your wrist and to the ESD ground connector or a bare metal surface on your chassis. SFP modules are static sensitive. Wear an ESD-preventive wrist strap so that it can prevent ESD damage.
2. Remove the dust cap and save for future use.
3. Insert the SFP module into the socket. The orientation of an SFP module within a switch varies according to the SFP module port. Be sure that the SFP module is in the right position before inserting.
4. Observe the LED. If the LED turns green, it means the transceiver and the device establishes link successfully. While if the LED is off, there may be an installing problem with the adapter.

Removing SFP Transceivers

To remove a SFP transceiver (see the picture), you should the following procedures  keep in mind:
1. Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.
2. Disconnect the network cable from the SFP transceiver.
3. Remove the SFP transceiver carefully from the module slot.
4. Place the removed the SFP module in a static shielding bag.

In addition, to connect 1000BASE-T SFP transceiver modules (such as HP J8177C SFP transceiver) to a copper network, follow these substeps: insert the Category 5 network cable RJ-45 connector into the SFP transceiver module RJ-45 connector. And then insert the other end of the network cable into an RJ-45 connector on a 1000BASE-T compatible target device. When connecting to a 1000BASE-T-compatible server, workstation, or router, use four twisted-pair, straight-through Category 5 cabling for the SFP transceiver module port.  

Do not remove the dust plugs from the fiber-optic SFP module port or the rubber caps from the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables from contamination and ambient light.

The above is about the installation and removing of a SFP transceiver. But keep in mind that removing and installing an SFP module can shorten its useful life. Therefore, do not remove and insert SFP modules more often than is absolutely necessary.

Why Plug-and-Play Transceivers Are So Popular

Plug-and-play is a technology that allows the operating system to detect and configure internal and external peripherals as well as most adapters. It has the ability to find and configure hardware components without having to reset DIP (dual in-line package) switches and jumpers. Plug-and-play transceivers refer to hot-swappable or hot-pluggable optical transceivers, such as SFP transceivers or XFP transceivers, which can be quickly plugged into an interface of fiber optical devices. Here are the reasons why plug-and-play transceivers play such an important role in data center communications.

Designed to Handle Mission Critical Applications

Plug-and-play transceivers are the basics of linking and transmitting data in mission critical applications which are the foundation of a company's business, like telecommunications company or networking technical company which depend heavily on data center. Therefore it is essential that these applications run efficiently or the entire company will be stuck in trouble. The faster data can reach, the faster decisions can be made. That's why it's so important to ensure that the applications are up and running 99.99 percent of the time. Even if plug-and-play transceivers fail to work well, there is relatively little downtime because the devices can be replaced without powering down the entire system.

Time-saving and Cost-effective

There's nothing worse than a malfunctioning transceiver that needs repair or replacement. Imagine that if you have to redesign an application every time one component malfunctions. Redesigns are not favorable because they are expensive and time consuming. Using plug-and-play transceivers can avoid redesign, because they are highly compatible and can be easily replaced. This is an important factor why plug-and-play transceivers are more popular than standard transceivers, because you can save time and money with plug-and-play transceivers and avoid redesigns that could ruin the efficiency of your work.

Upgrade When Needed

This will allow you to keep your capital liquid and invest in other aspects of your business. When new devices are introduced on the market, it will be easy to drop them into your existing design. Many of the transceivers are 100% compatible and are backed by a warranty. Thus, designers have nothing to fear by waiting to upgrade. If the upgrade doesn't work, they'll be refunded for the cost of the device.

Increase Productivity and Efficiency

As mentioned above, plug-and-play transceivers allow people to replace transceivers easily without completely shutting down their entire system or redesigning the application. When it's not required to power down the device for replacement or repair, productivity and efficiency improves. This is why so many telecommunications company and networking technical company are choosing plug-and-play devices over standard devices, especially the plug-and-play transceivers. Currently, fiber plug-and-play solutions for data center applications are very necessary to transmit data with a high degree of integrity, reliability and efficiency.

All in all, there are so many reasons that plug-and-play transceivers are preferred over standard transceivers. Fiberstore provides a wide range of plug-and-play transceivers, such as CiscoCVR-X2-SFP10Gcompatible module, Cisco SFP-GE-S compatible SFP module and other transceiver modules compatible with many other famous brands.  

Why Plug-and-Play Transceivers Are So Popular

Plug-and-play is a technology that allows the operating system to detect and configure internal and external peripherals as well as most adapters. It has the ability to find and configure hardware components without having to reset DIP (dual in-line package) switches and jumpers. Plug-and-play transceivers refer to hot-swappable or hot-pluggable optical transceivers, such as SFP transceivers or XFP transceivers, which can be quickly plugged into an interface of fiber optical devices. Here are the reasons why plug-and-play transceivers play such an important role in data center communications.

Designed to Handle Mission Critical Applications

Plug-and-play transceivers are the basics of linking and transmitting data in mission critical applications which are the foundation of a company's business, like telecommunications company or networking technical company which depend heavily on data center. Therefore it is essential that these applications run efficiently or the entire company will be stuck in trouble. The faster data can reach, the faster decisions can be made. That's why it's so important to ensure that the applications are up and running 99.99 percent of the time. Even if plug-and-play transceivers fail to work well, there is relatively little downtime because the devices can be replaced without powering down the entire system.

Time-saving and Cost-effective

There's nothing worse than a malfunctioning transceiver that needs repair or replacement. Imagine that if you have to redesign an application every time one component malfunctions. Redesigns are not favorable because they are expensive and time consuming. Using plug-and-play transceivers can avoid redesign, because they are highly compatible and can be easily replaced. This is an important factor why plug-and-play transceivers are more popular than standard transceivers, because you can save time and money with plug-and-play transceivers and avoid redesigns that could ruin the efficiency of your work.

Upgrade When Needed

This will allow you to keep your capital liquid and invest in other aspects of your business. When new devices are introduced on the market, it will be easy to drop them into your existing design. Many of the transceivers are 100% compatible and are backed by a warranty. Thus, designers have nothing to fear by waiting to upgrade. If the upgrade doesn't work, they'll be refunded for the cost of the device.

Increase Productivity and Efficiency

As mentioned above, plug-and-play transceivers allow people to replace transceivers easily without completely shutting down their entire system or redesigning the application. When it's not required to power down the device for replacement or repair, productivity and efficiency improves. This is why so many telecommunications company and networking technical company are choosing plug-and-play devices over standard devices, especially the plug-and-play transceivers. Currently, fiber plug-and-play solutions for data center applications are very necessary to transmit data with a high degree of integrity, reliability and efficiency.

All in all, there are so many reasons that plug-and-play transceivers are preferred over standard transceivers. Using plug-and-play transceivers can expand your options. With your options open, there are more opportunities of saving money, upgrading and increasing productivity. And the fact that plug-and-play transceivers are hot-swappable and do not require designers to power down the device is appealing to most people. That's also why so many designers are considering plug-and-play transceivers to increase their functionality.

Originally published at http://www.sfp-transceiver-modules.com/wiki_list