Fiber Optics Solutions

četvrtak, 26.02.2015.

Fiber Optic Transceivers Today and Tomorrow

Fiber optic transceivers is a self-contained component that can both transmit and receive. Usually, it is inserted in devices such as routers or network interface cards which provide one or more transceiver module slot, such as GBIC module, SFP transceiver, XFP, etc.

Fiber Optic Transceivers Today

Fiber optic transceivers for applications in the field of datacom are mostly characterized by a couple of established international standards. These standards define the electro-optical performance of a transceiver/transponder as well as its pinout and its physical outline and package, including the corresponding fiber optic connector interfaces.

Fiber optic transceivers meeting these standard are operating worldwide in numerous applications in mainframes, server clusters, storage area networks, wide area networks, and local area networks, and currently around 20 to 30 worldwide competing suppliers have been established. The number of partners involved in some important multisourcing agreements has seen an increase since 1989. This is also indicative of the increasing importance of industrial associations where both suppliers and applicators are represented. This speeds up the market penetration of novel components, systems, and applications. Nowadays, this does not seem to generate conflicts with the commonly agreed normative power of international standardization organizations such as the Internationnal Organization for Standardization (ISO), International Electrotechnical Commission (IEC), and International Telecommunication Union (ITU).

The demand for these transceivers has continuously increased during the past 10 years, and the prices have shown dramatic decreases of order of 25% per year. Consequently, the goal of all manufacturers is to offer a high level of performance, reliability, quality, and serviceability while maintaining cost-effective production in the face of drastically increased volumes to meet the market pricing.

Some Aspects of Tomorrow's Transceivers

The bit rates of fiber optic transceivers are continuously increasing in order to meet the worldwide demand for ever higher bandwidths. These bandwidth increases are called for by both existing storage and networking markets, as well as the parallel computing industry and high end server design.

In the past 10 years, a significant reduction of transceiver module size was possible due to significant progress in the downsizing of optical subassemblies and associated passive and active electronic comparison of the ESCON/SBCON outline, multistandard, small form factor (SFF), and parallel SNAP-12 transceivers. The function of the transceivers shown is described in detail in my previous blog posts.

Future transceiver design is likely to focus on power consumption, electromagnetic compatibility and immunity, and density. As data rates continue to increase, we will start to see transceivers used closer to the ICs on the board and not just at the card edge. It has also been demonstrated the is possible to incorporate optical components onto a chip, completely avoiding the deficiencies of high-speed signals on copper board traces. While these advancements may take their place in high-end computing systems, classical card edge transceivers are likely to continue to play their role into the foreseeable future to allow fiber cable connection for SANs and networking.

Where to Buy Fiber Optic Transceivers

Fiber optic transceiver is a very popular format that's recommended by a large number of fiber optic component providers. Fiberstore provide a full range of optical transceivers. Cisco, especially, you can find a full product line of our New Cisco SFP modules, such as GLC-T SFP, SFP-GE-T, GLC-SX-MM, etc. Our SFP and SFP+ moduels are 100% compatible with a good price and enjoy same-day shipping.

Oznake: Fiber Optic Transceivers, SFP, Cisco SFP

srijeda, 11.02.2015.

How to Install or Remove 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.

Note: 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.

Cisco, especially, you can find a full product line of our New Cisco SFP modules, such as GLC-LX-SM-RGD, SFP-GE-T, GLC-SX-MMD, etc. Our SFP+ and QSFP+ moduels are 100% compatible with a good price and enjoy same-day shipping.

Ordering Information

• QSFP-4SFP10G-CU3M, Cisco QSFP+ to 4 SFP+ Passive Copper Direct Attach Breakout Cable features a single QSFP+ connector (SFF-8436) rated for 40-Gb/s on one end and 4 SFP+ connectors (SFF-8431), each rated for 10-Gb/s, on the other.


• SFP-H10GB-CU3M, SFP+ passive copper cable, Data Rate up to 10.5G, 3 meter, AWG30.


• GLC-SX-MM, GLC-SX 1000BASE-SX SFP transceiver, supporting dual data-rate of 1.25Gbps/1.0625Gbps and 550m transmission distance with MMF.


• GLC-T module, Cisco SFP To RJ45 converter for Category 5 copper wire compliant with the Gigabit Ethernet and 1000BASE-T standards.


• SFP-10G-SR 10GBASE-SR SFP module, offers the same function with Cisco SFP-10G-SR and it is fully compatible with Cisco devices.

Article Source: Guide of Installing or Removing Transceiver Modules (Part III)

Oznake: Cisco SFP, QSFP+, SFP, Transceiver module

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