Optical Transceiver Modules Archives - Page 2 of 2

Optical Transceiver Selection Guide

As an important optical component being widely used in today’s optical network, optical transceiver has been developing rapidly. More and more vendors are providing various types of transceivers to meet the market calls. To select a matching transceiver for a given application and hardware is now an easy thing now. Many parameters should be considered. The following text is to provide the parameters should be considered during the selecting of the proper optical transceivers.

MSA (Multi-Source Agreement) Type of Optical Transceiver

A transceiver is usually used to mechanically and electrically fit into a given switch and router. Transceiver MSAs define mechanical form factors including electric interface as well as power consumption and cable connector types. There are the following types of optical transceivers according to MSA: GBIC, XENPAK, X2, XFP, SNAP12, SFP, QSFP/QSFP+, CXP and CFP.

Protocol and Data Rate

As different switch or router supports different protocol and data rate. Before selecting the transceiver needed, make sure the protocol and data rate to be supported. The following provides the most common protocol and data rate types:

Gigabit Ethernet: 1 GE/10GE/40GE/100GE
Fiber Channel: 1GFC (1.25Gbps) / 2GFC / 4GFC / 8GFC / 16GFC
SDH STM-1 (155Mbps) / STM-4 (622Mbps) / STM-16 (2.5Gbps / STM-64 (10Gbps)
Multirate (155Mbps to 2.67Gbps)
CPRI up to 6Gbps (for Video Transmission)

Transport Media

The most commonly used transport media are cooper, single mode fiber (SMF), Multimode fiber (MMF). Maker sure the transport media, before choosing an optical transceiver.

Transceiver “Color”

The colored transceiver commonly known as CWDM transceivers and DWDM transceivers. In CWDM or DWDM system, each channel uses a different “color” transceiver because each lambd represents a different color in the spectrum.

Equipment Compatibility

In what switch or router is the transceiver supposed to work. Now the third party transceivers are being provided. If the equipment open for third party transceiver, then the third party transceiver could be an option. However, if not, the brand, model and firmware version must be known.

IEEE Descriptions

The functions of the optical transceivers are various, thus understand the IEEE descriptions of the optical transceivers can help to select the match one quickly. The following provided are the translation of IEEE descriptions:

MM: multimode
SM: single mode
Base -T: “copper” SFP with electrical RJ45 interface
SX: SFP 850nm, MM, grey, 1GE, approx. 500m
LX: SFP 1310nm, SM, grey, 1GE, approx. 8km
EX: SFP 1310nm, SM, grey, 1GE, approx. 40km
ZX: SFP 1550nm, SM, grey, 1GE, approx. 70km
CX4: “copper” XFP with electrical IB4x connector
SR: SFP+ or XFP 850nm, MM, grey, 10GE, approx. 300m
LR: SFP+ or XFP 1310nm, SM, grey, 10GE, approx. 10km
ER: SFP+ or XFP 1550nm, SM, grey, 10GE, approx. 40km
ZR: SFP+ or XFP 1550nm, SM, grey, 10GE, approx. 80km
SR4: QSFP 850nm, MM, 40GE, approx. 100m
SR10: CFP 850nm, MM, 100GE, approx. 100m
LR4: CFP or QSFP 1310nm, SM, 40GE (CFP or QSFP) or 100GE, approx. 10km

Taking the above parameters into consideration, to select a match optical transceiver would be much easier and more quickly. FS.COM, an professional optical components provider, offers a wide range of optical transceivers of high quality including SFP, SFP+, CWDM transceiver, DWDM transceivers, etc.

Some Common Fiber Optical Transceiver

Fiber optic transceiver including both transmitter and receiver in a single module is an important equipment transmitting and receiving data to support the normal operation of optical fiber data transmission system. The market currently offers a wide selection of fiber optic transceiver for use with different types of wire, fiber and wavelength and so on.

A group of companies joined together to agree on package standards also called multisource agreements (MSAs). The package standards help customers choose the best transceivers to their applications and make sure the they can use transceiver from multiple vendor without redesigning the board. In the following text, some common fiber optic transceivers according to package standards are introduced in details.

9-Pin transceiver is also known as 1×9 optical transceiver. This transceiver has a single row of output pins at the rear of the device. The optical interface is usually ST or duplex SC receptacles. It is mainly used in fiber optic transceiver, optical switches, single/multi-mode converter as well as some industrial control applications.

GBIC transceiver, namely gigabit interface converter transceiver, is a plug-in interface designed to allow a pluggable interface for Gigabit Ethernet. It offers a standard, hot swappable electrical interface and can support a wide range of physical media from copper to long-wave single mode optical fiber, at lengths of hundreds of kilometers. However, this type of transceiver is gradually replaced by SFP transceiver which has more advantages.

SFF (small form-factor) transceiver is a compact optical transceiver used in optical communications for both telecommunication and data communications applications. Compare to 9-pin and GBIC transceivers, SFF transceivers is smaller allowing more ports in a given area. SFF transceivers have 10 or 20 I/O (input/output) pins that solder to the board.

SFP transceiver, small form-factor pluggable, small hot-pluggable optical module is a pluggable version of SFF transceiver and an upgraded version of the early GBIC module, with 10 I/O connections at the rear of the package. With smaller volume and higher integration, it is currently the most popular fiber optic transceiver.

SFP+ transceiver, also called enhanced SFP or SFP plus, with a higher transmission rate usually up to 8.5 G or 10 G, is a kind of optical transceiver module specified for 8Gbps/10Gbps/16Gbps fiber channel and 10Gigabit Ethernet applications.

XFP transceiver, 10Gigabit small form-factor pluggable transceiver, is the next generation SFP transceiver for 10Gbps application. This type of transceiver is hot-swappable and protocol-independent and is usually used to 10Gbps SONET/SDH, fiber channel, Gigabit Ethernet and other applications, but also of CWDM DWDM link.

XENPAK transceiver is a pluggable transceiver for 10Gbps applications, specifically 10 Gigabit Ethernet. The electrical interface is called XAUI, which provides four 2.5Gbps signals to the transmitter, which multiplexes or serialize them into a single 10Gbps signal to drive the source. It uses a 70-pin electrical connector. The optical interface is usually a duplex SC.

X2 transceiver is based on the XENPAK transceiver standards. It is shorter than XENPAK transceiver but uses same 70-position electrical and duplex SC interfaces. Unlike XENPAK, X2 devices mount on top of the board and are low enough to allow boards to be stacked side by side.

What Technology Should be Valued at the Next Generation Data Center Network

With the continual?expansion of business data center, the most several difficult problems for them are mainly about divided network environments, simple says, separate data network, separate storage network, separate calculation?network, protocols and there are different disadvantages of standards. Different networks need different cards, space, power and cooling infrastructures for their business. Interspersed interlaced network cabling may make many administrators feel dizzy. Aimed at different network environments, the company needs a professional technical team to support, manage, maintenance, these problems all block the forward developments of data center, let alone meet the future of cloud computing.?The figure shows?modern data center.

You may ask, what qualities we are taken for the next generation data center networks? Now we can see the characteristics, such as simplicity, virtualization features, can accommodate the expansion of the size of the data center, support higher bandwidth, low latency, non-blocking and so on. But as for these features, mainstream network equipment vendors aimed the advantages of their products and solutions to this goal, so if there is an architecture able to support these features do? The answer is yes, unified architecture (Unified Fabric), regardless of Cisco UCS. Brocade VCS, juniper3-2-1 plan, H3C’s unified fabric, also exist Unified Fabric. This page we just say two points.

The key technology under Unified Architecture (Unified Fabric)

Gigabit Ethernet

With the reduction of gigabyte networks at the server connections, Gigabit Ethernet share is rising, which maily due to the growth in the enterprise data center network traffic.In fact, with the 40G / 100G standard developments, it is sure that Gigabit Ethernet replacing the gigabyte networks, the birth of the Gigabit sfp+ transceiver?standard which has low power, sfp+ direct attach cable?can be achieved in the case of low-cost Gigabit Ethernet. And just mainstream might not be enough, the following what I will be introduced to toward greater success.

FCoE protocol (Fiber Channel over Ethernet)

FCoE is one of the most shining technology data center network currently, any vendors have to talk about the technology of the developments of their products. FCoE refers to the Fiber Channel over Ethernet, it can insert fiber channel information into the Ethernet packet, so that the Fiber Channel storage devices -SAN server requests and data can be transmitted over an Ethernet connection, without the need for a dedicated Fiber Channel fabric . Its main benefits: First, make storage traffic and network traffic share the same Ethernet cable and a fusion of the card, simplifying management and reducing energy consumption. Second, provide the same performance with optics. The third is the ability to integrate effectively existing SAN.

Finally, you know, now i work for Fiberstore and in our website, we can provide the most advanced technology and the most effective way to help you solve the fiber optics problems, and at the same time, we also provide all the fiber optic products, such as 10 100 1000base t ethernet sfp, qsfp 4x10g aoc7m and glc fe 100lx rgd to buy. If you are interested, take a decision for it.

Talk About QSFP 40G SR4 to 4 SFP 10G SR Transceiver Module

As we know, SFP+ and QSFP+ transceiver module and fiber optic cables bring to people a wide variety of high density and low power 40 Gigabit, 10Gigabit, 1 Gigabit, and 100 Megabit Ethernet connectivity options over fiber or copper media.

The example of 40G QSFP module will bring us to have knowledge of it. In 40G QSFP module data sheet, we can see that QSFP 40G SR4 break out in a 4 x 10 G mode for interoperability with 10Gbase sr interfaces up to 100m and 150m on OM4 and OM3 cables respectively, in another word, if i connect Nexus 55772UP equipped with “six true QSFP ports” to Nexus 7706 using QSFP 40G SR4 on the side of 5572UP, and 4 x cisco SFP 10G SR on the side of 7706 Somehow, i think that this is not impossible, but someone thinks that there are fiber optic cables with 40G interface on one side and 4 x 10G SFP (LC connector) on the other side. We can breakout the single 40G port into 4 separate 10 G ports and use a QSFP to 4 LC breakout cable to link one or more of 10G ports to the 7706.

In fact, Cisco QSFP 40G SR4 module supports link lengths of 100m and 150m, respectively, on laser optimized OM3 and OM4 multimode fibers. It primarily enables high bandwidth 40G optical links over 12 fiber parallel fiber terminated with MPO/MTP multifiber connectors. It can be used in a 4 x 10G mode for interoperability with 10Gbase sr interfaces up yo 100m and 150m for OM4 and OM3 cables, respectively. The worry free 4 x 10G mode operation is enabled by the optimization of the transmit and receive optical characteristic of the Cisco QSFP 40G SR4 to prevent receiver overload or unnecessary triggering of alarm thresholds on the 10Gbase SR receiver, at the same time being fully interoperable with all standard 40Gbase sr4 interfaces. 4 x 10G connectivity is achieved using an external 12 fiber parallel to 2 fiber duplex breakout cable, which connects the 40GBASE SR4 module to four 10GBASE SR optical interfaces. Cisco QSFP 40G SR4 is optimized to guarantee interoperability with any IEEE 40GBASE SR4 and 10GBASE SR (in 4 X10G modes).

The transceiver consists of parallel electric and optical products along with both transmitter and receiver functions as a single module. It is designed to be compliant to IEEE 802.3-2012 for 40G SR4 over 100 m of OM3 multimode fiber at a rate of 41.25 Gbps. This transceiver module has an option to work with four independent SFP 10G SR, IEEE 802.3 Clause 52 Compatible 10 G transceivers through an MPO-to-LC breakout cable (compliant at 100 m over 50 μm OM3 fiber). The transceiver is also fully compliant with the QSFP+ MSA specification SFF-8436 Shown at the Figure.

To support a good increasing range of 10 and 40 Gigabit Ethernet applications, Fiberstore offers many qsfp transceiver types, each optimized for a different media and distance reach (LR4, PLRL4, 40G SR4, XSR4, CR4, CR, SRL, SR, LRL, LR, ER, ZR, and DWDM). Additionally, fiber SFP+ ports also support 3 Gigabit Ethernet SFP transceiver types for single mode fiber, multimode fiber, as well as Cat 5 copper cable.

Address Common Questions When Using the Compatible Devices

When we begin to come into compatible products industry, there is always a problem that confused us, we are not sure if a device can be compatible with another device in different brands, even after they connected, did not know what would happen, well, this page I will explain the problem with the actual example.

For example, we need to connect Dell M6330 blades switches to a HP 2910al by fiber sfp+ over sr (50/125 um OM3 fiber from tyco). Then i ordered the SFP+ module for the 2910al (J9008A), two transceiver modules for the DEll switches (one each) and 4 x Dell 10gbase-sr sfp LC LC transceiver. And if all the connection between the M6220 done well, but when i plug the Dell transceiver into the switch there is no link up, what it means that if the HP switch refused to work with the Dell transceivers, but there is no event log notice of incompatibility, Then the questions is, if i can connect the HP switches to Dell by SFP+, or do you know if using non-HP brand SFP+ transceivers will work with the HP transceiver?

Well, in this issue, If you are indeed using optical transceivers in the switches, then no switch has any idea about what transceivers are in any other switch. Switches only know about the directly connected (plugged-in) transceivers. Now, as for the transceivers themselves. The J9008A is simply an expansion module. HP ProCurve switches will not accept non-HP ProCurve transceivers. So, if you have been trying to use the Dell SFP/SFP+ transceivers with the HP 2910al, that would be your problem. You are required to obtain HP ProCurve transceivers and use those.

In general, we have to say that HP switches do not accept non-hp transceivers, such as Cisco, Dell, Juniper, Netgear and so on…You can’t plug a Dell transceiver in a ProCurve switch and expect it to work. Although there is a MSA (Multi Source Agreement) for SFP transceiver, in practice HP switches do not accept non-HP transceivers. Cisco equipment also can only utilize the Cisco SFP module and other brand module or equipment is not supported. If you just plug in the other module, Cisco port information will be displayed on the Unsupport or unknown. In simple terms, as for the unknown GBIC, Cisco device does not provide any warranty. In a word, when we choose the device, we just have to choose the same brands products, compatible products also can be used. Above the Figure shows that the popular compatible module in our Fiberstore.

Juniper Networks SFP Module EX-SFP-10GE-SR

SFP is with higher data rate and new industrial standards and it is with more compact size compared with the former 10G transceivers X2 and Xenpak, it has greater ability for density installations. With the rapid development of fiber optic technologies, 10G Ethernet products are coming to fit the increasing demand for bandwidth. SFP plus is the 10G fiber optic transceiver used for 10G Ethernet and other high speed transmissions. It is the upgraded version of the former SFP transceivers (MINI GBIC), This post will focus on Juniper Networks SFP module EX-SFP-10GE-SR.

Overview of Juniper SFP Modules

Juniper SFP transceivers are the most cost-effective standards-based optical modules fully compatible with Juniper Switches & Routers. The Juniper SFP modules are tested in-house prior to shipment to guarantee that they will arrive in perfect physical and working condition before delivered worldwide. Fiberstore provides Juniper compatible SFP transceivers which can be equivalent to EX-SFP-10GE-SR, EX-SFP-10GE-LR, SFPP-10GE-SR, EX-SFP-10GE-ER, etc. The following part will introduce Juniper EX-SFP-10GE-SR.

Juniper EX-SFP-10GE-SR Brief Information

This Juniper compliant EX-SFP-10GE-SR is a 10GBASE SR SFP module. The EX SFP 10GE SR transceiver module combines quality with low cost and gives you an ideal alternative except for the high price transceivers. The EX SFP 10GE SR is 100% compatible with all Juniper series switches and modules which support SFP transceivers. Here is a figure for you.

Juniper EX-SFP-10GE-SR

This SFP (mini-GBIC) transceiver module is designed for use with Juniper Networks network equipment and is equivalent to Juniper Networks part number EX-SFP-10GE-SR. This transceiver is built to meet or exceed the specifications of the OEM and to comply with Multi-Source Agreement (MSA) standards. This product is 100% functionally tested, and compatibility is guaranteed. The transceiver is hot-swappable input/output device which allows a 10 Gigabit Ethernet port to link with a fiber optic network. OEM specific configuration data is loaded on to the EEPROM of the transceiver at the factory, allowing this transceiver to initialize and perform identically to an OEM transceiver. This transceiver may be mixed and deployed with other OEM or third party transceivers and will deliver seamless network performance. A list of compatible network equipment is available on the Specs tab of this page.

EX-SFP-10GE-SR Key Features

Operating data rate up to 10.3Gbps
850nm VCSEL Transmitter
TX Power :-6~-1dBm
Receiver Sensitivity:-11.1dBm
Distance up to 300m @50 / 125 um MMF
Single 3.3V Power supply and TTL Logic Interface
Duplex LC Connector Interface, Hot Pluggable
Compliant with MSA SFP+ Specification SFF-8431
Compliant with IEEE 802.3ae 10GBASE-SR/SW
Power Dissipation < 1.0W
Built-in Digital Diagnostic Function

EX-SFP-10GE-SR Applications

10GBASE-SW at 9.953Gbps
10GBASE-SR at 10.3125Gbps
Other Optical Link

Conclusion

FS.COM have a large quantity in stock transceivers and can ship in the Juniper EX SFP 10GE SR transceivers, you will find the cost effective modules here and you will find our Juniper EX-SFP-10GE-SR beyond your expectation, All of our module transceivers are tested in house prior to shipping to insure that they will arrive in perfect physical and working condition. Contact us today to save the time and cost by buying from original manufacturer directly. And now fiberstore is making a discount of 30% of the price about Juniper SFP.