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Q:

Why 40G bidi module cannot read DDM information?

by W***g on 02/10/2020

A:

40G BIDI is transmitted by two parallel lines, so it can not provide real-time DDM information, and can only be monitored by special scheme and single receiving monitoring module #65231 ).

by L***r on 02/10/2020

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Q:

How many MultiMode fiber pairs/duplex do I need to transmit 40G? Your Test picture shows 2. I am looking for a QSFP+ that will pass 4 x 10G on a single MultiMode pair. Thanks

by K***n on 08/27/2018

A:

Thanks very much for contacting us, actually the 40G QSFP+ BiDi transceiver have two 20Gbps channels used to transmit 40G signal. If you want to transmit 4X 10G signal on a multimode cable, we'd recommend the items #36189 + #68017 to you. Hope this is helpful to you.

by A***o on 08/28/2018

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Q:

Why should I trust FS.COM compatible transceivers?

by S***a on 06/18/2018

A:

Besides the price advantage we have compared to branded transceivers, FS.COM compatible transceivers also maintain the same performance and reliability. To satisfy our customers' needs of high performance, all of our transceivers are tested multiple times in mainstream original brand switches in our test center before shipped out.

by B***n on 06/07/2017

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Q:

Do you offer 40G QSFP+ transeivers that operate at an industrial temperature range?

by W***r on 03/17/2018

A:

Sorry, 40G QSFP+ transeivers that operate at an industrial temperature range are currently not available, but in development. Please stay tuned.

by C***n on 03/17/2018

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Q:

Will the 40G QSFP+ BiDi Transceivers have 40Gbps transmission data rate on one single channel?

by M***r on 03/09/2018

A:

No, it can't. To work on 40Gbps data rate, it is recommended to link the transceiver in both connectors with a LC duplex MMF fiber cables since the 40G QSFP+ BiDi Transceivers have two 20Gbps channels, each transmitted and received simultaneously over two wavelengths on a single MMF link.

by M***a on 03/09/2018

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Q:

How long does delivery take to south Korea?

by J***Y on 03/06/2018

A:

We have sufficient stocks for Arista Compatible QSFP-40G-SRBD. It only takes 2-3 business days from China to Korea once your order confirmed.

by A***n on 03/06/2018

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Q:

What kinds of custom choices are offered in FS.COM?

by G***k on 07/15/2017

A:

As for customized transceivers, FS.COM offers regular custom choices such as compatibility, transmission distance, operating temperature, label pattern, label colors and etc. What's more, FS.COM welcomes any inquiry for customized products and solutions for all need and specifications.

by S***e on 07/15/2017

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Q:

What are the differences between MTP/MPO interface and LC interface 40G QSFP+ transceivers?

by H***s on 06/05/2017

A:

On one hand, the FS.COM 40G QSFP+ transceivers with LC interface are used for long-distance transmission over single mode fiber, and those with MTP/MPO interface are utilized for short distance transmission over multimode fiber. On the other hand, for the FS.COM 40G QSFP+ transceivers with LC interface, they cannot be split into 4x10G as they use 4 wavelengths on a pair of single-mode fibers and do not lend themselves to “splitting” into 4 pairs without substantial complexity to split out the wavelengths. For the FS,COM 40G QSFP+ transceivers with MTP/MPO interface, they can be used in 4x10G connectivity via an external 12-fiber parallel to 2-fiber duplex breakout cable, which connects the 40G transceiver to four 10G optical interfaces.

by H***c on 06/05/2017

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Q:

Once I place an order for my transceivers, how long will it take to receive them?

by M***r on 06/03/2017

A:

FS.COM has been maintaining adequate stock level of the 40GBASE-SR Bi-Directional QSFP+ transceivers in U.S. warehouse, EU warehouse and CN warehouse. As long as the products you order are all in stock, we will ship them out the same day you place your order. As for some specific products or products that have a short stock, we will keep you informed ahead of time before you place your order.

by B***r on 06/03/2017

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Q:

Why are the 40G BiDi transceivers cost-effective solutions for migration from 10G to 40G compared to the QSFP+ SR4 transceivers?

by S***n on 05/24/2017

A:

The 40G BiDi transceivers use LC connectors while the QSFP+ SR4 transceiver uses MTP/MPO connectors. Therefore, all of the existing 10Gbps MMF cables can be reused, resulting in zero-cost cabling migration from 10G to 40G. Therefore, the 40G QSFP+ BiDi transceivers are cost-effective solutions in scenarios like data centers where require short-reach, limited fibers and saved operation space of 40G connectivity.

by J***y on 05/24/2017

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