How to choose SFP transceiver for fiber optical cable
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- čas přidán 28. 09. 2022
- The SFP transceiver will determine which kind of fiber optical cable you need. There is a single mode and multiple mode fiber optical cable. It needs a different SFP transceiver to work with those cables. The speed is another thing to consider. The SFP slot and SFP transceiver will not automatically downgrade to adapt to the speed, unlink network port, you can put 1000mbps speed port to work with 100mbps devices. You must select the match speed transceiver for your switch or converter. The LC is a popular connector because of its compact size. The working temperature also could be ignored especially while the switch or converter will be deployed outside.
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Finally! Thanks for the well explained video!
Glad you enjoyed it!
Very well explained... Thank u✌
You just earned a follower
Thanks and welcome
Thank you - very intuitive!
Thanks for your comment!
I'm trying to learn about fiber optics. Your explanations were very clear and helpful. Thank you
Glad it was helpful!
Thank you and great video.
Glad you liked it!
Perfect,
Thanks for sharing.
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Well explanations!! Thx a lot.
Glad you liked it
Thanks!
Welcome!
Can you elaborate more on the differences between all the options and compatibility between cable and module. Do modules need to be in a send/receive pair or a module can send/receive to the same kind of module?
The SFP transceivers determine the fiber optical types (single mode or multi-mode), connector types (LC SC ST)… If it is the BiDi transceivers that takes different wavelengths to transmit the signal, you need different send/receive because the laser generator are different. Otherwise, there is no difference.
@@Fastcabling so if the SFP uses a single LC connector cable and single mode, then the sender and receiver SFP must be different (matching pair), but if multimode, then they could potentially be the same?
Hi Thanks for the very informative video.
I want to use media converter to isolate my audio equipment from electrical noise. With the TP link MC220L which SFP module and fibre cable should be used? I live in Australia. Thanks.
For your information, this media converter is compatible with both multi-mode/single-mode SFP module, and it can extend fiber distance up to 0.5km using multi-mode fiber or up to 10km using single-mode fiber. If your primary concern is reducing electrical noise and interference, single-mode fiber is the better choice due to its superior noise immunity and performance over longer distances.
Fastcabling has also developed different types of SFP modules and fiber cables. If you're interested, please free to consult our expert at support@fastcabling.com.
SFP Modules: www.fastcabling.com/product-category/media-conversion/
Pre-terminated Fiber Optic Cable: www.fastcabling.com/product-category/pre-made-fiber-cable/
well done young man...i just would like to understand the sfp module with a single connection you showed in 05:02, would single mode cable not transmit unidirectional data instead of bidirectional as its the property of multi mode cable to transmit bidirection data transfer ? please advise
Unlike traditional optical transceivers that use separate wavelengths for transmitting and receiving data, BiDi SFP modules use two different wavelengths over a single fiber strand for bidirectional communication.
The term "BiDi" stands for "Bi-Directional," which means that data can be transmitted and received over the same fiber strand but in opposite directions. This bidirectional communication is achieved by using two different optical wavelengths, one for upstream (TX) and another for downstream (RX) data transmission.
BiDi SFP modules are particularly useful in situations where there is limited fiber infrastructure or where additional fiber installation is expensive or difficult. By allowing bidirectional communication over a single fiber strand, BiDi technology effectively doubles the capacity of existing fiber optic networks without the need for laying down additional fibers.
Pls I need your advice on delay in loading one of 3 NVR
You can test the system with short patch cord to rule out the cause from the cable.
Elegant
Thanks for watching!
How to verify on-site if the SFP transceiver is working well post-install check and System integration test
You might check the indicator on your switch or media converter. There is indicator which wil show whether the link is up or not. Otherwise, you can bring the switch back and test it with short patch cord. It will rule out a possible defect of the cable.
what about sfp+ dacs? i heard those are cheaper to connect from 1 switch to another within the same rack.
also that multi mode is cheaper than single mode ya?
and also sfp+ copper uses the most power and also gets hot. e.g. some switches can only handle up to 4 sfp+ copper transceivers tops.
probly some stuff out of scope of this video subject but thought i'd mention them.
Thanks for your input. yes, the SFP+ DACS is cheaper, and multi-mode transceiver is cheaper for SFP+. That is why the multi-mode solution is popular in the data center. There is no much difference with the single-mode and multi-mode cable and SFP (1G) transceiver. The multi-mode cable has limited distance (about 550 meters). It is quite simple for single mode to reach 20KM.
@@Fastcabling i saw on youtube some other persons setup, they used optical fiber multi-mode to connect from 1 switch to another within the same rack.
so i was wondering why they did that considering that sfp+ dac is cheaper for purchase not to mention uses less power than optical.
in terms of power consumption lowest to highest, 1. DAC, 2. Fiber, 3. Copper
yeah there those range differences, but for home lab user they wouldn't be requiring those ranges i think? maybe 30m at best?
Would be interesting if you made a future video on this topic so people get the correct sfp+ especially for lowest cost so they don't end up overpaying for something overkill and expensive for no reason :}
What transceiver is best used for the connectivity of OLT to switch at the same rack?
That depends on your specific network setup, equipment compatibility, distance requirements. It's recommended to select transceivers that match the data rate and protocol (e.g., Gigabit Ethernet, 10 Gigabit Ethernet) supported by your OLT and switch.
Just out of curiosity, why do you only plug in 1 strand into the SFP, and leave the other strand loose? Wouldn't that make the connection a simplex/1-way connection?
For example, if I was connecting an antenna to a router with 2 strand os2 singlemode cable, with a transceiver on the antenna and the router, should both strands be plugged into the Tx/Rx ports accordingly? (i.e. the Tx port from the antenna side goes into the Rx port of the router side and vice versa?)
Im still new to this and trying to figure it out, thanks for the videos though, short and simple.
It is the BiDi transceiver you saw in the video. The BiDi transceiver take different wavelengths to transmit and receive data. Single strand will be enough to carry up to 10G speed. The additional strand cable could work as backup or channel aggregation to double up the bandwidth.
@@Fastcabling Ohkay so it can Tx/Rx simultaneously on the same strand, I didn't realize that, I thought one strand was for Tx and one strand was for Rx. Thanks
@@Fastcabling So why would there be 2 cables if they are both Tx/Rx? For more bandwidth ??
My ISP's router has a single fiber optic line and the ONT line port says SPF+ 10GB. I am assuming that the media converter I need is the SFP+ transceiver. I want to be able to connect the fiber optic line directly to a TP-Link XE-75 PRO. By cloning the MAC address of the router, I should be able to use my DECO-XE75 PRO correct? The ISP's router is ADTRAN and the ISP has locked down the admin page. I want to return the ISP's router and use if possible my TP-Link XE-75 PRO so that I have more control over advanced settings.
You might need a modem if the ONT employs PON technology. It doesn't work with media converter with point to point connection.
Hello dear,
I want to use fiber link between Cisco POE gigabit switch to router. So which "Cable, SFP & media converter I have to use.?
You will need to choose Cisco compatible SFP transceivers. The SFP transceiver will determine the fiber optical cable and the connector type. As it is only Gigabit speed, there is no different between single and multi-mode. You don’t need single mode while the distance is beyond 550 meters. czcams.com/video/y6fZdkQGTfk/video.html
Are the connectors compatible with all the SFP modules or you need a specific connector for a module
Not all SFP modules and connectors are inherently compatible. There are several types of fiber connectors used in networking, including LC, SC, ST, FC, and more. Most SFP modules used in networks today commonly support LC connectors but they can differ in design, supporting either simplex (single fiber) cables for one-way data transmission or duplex (dual fiber) cables for bi-directional data flow. So it's always recommended to check the compatibility and consult the module's specifications beforehand.
Can multimode SFP s work on either OM1 (62.5/125) or OM3 (50/125) ? Is there anything spec to look for there?
Yes the multi-mode transceiver work with OM1 and OM3
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G-240W-B
hi i have a quick question can i use the fiber port of G-240W-B router to make the router access point from the main router i mean by useing fiber cable between the tow router?
G-240W-B is an optical network terminal (ONT), a part of Passive Optic Networks (PON). The fiber port on the G-240W-B is designed to receive an optical fiber connection from your ISP. This port is typically not used for connecting to other routers in your network.
Normally, routers or network terminals are interconnected using Ethernet cables. If your main objective is to extend or distribute your network using another router, you should do this via the Ethernet ports.
which is better ?single mode or multimode fiber sfp .plz reply.
I guess there is no afformtory answer. If the bandwidth 10G or less. Single mode fiber optical cable will be good. I personally prefer single mode. It achieve 10G up to 20km. The multi-mode has about 550meters. You will see more multi-mode deployment in the backbone inside the building or the datacenter. There is no need to concern the distance while we use single mode in most case.
Single mode for longer distance and multi mode for shorter distance single mode for 500m plus distance and multi mode for less than 500m
Hi greetings , In our premises we have been using aruba 5406 core switch and at outside idf ie less then two kilometer we are using Dlink DGS-f1100-10ps-e ( switch ) , how to know the compatible sfp for both aruba and dlink switch , could you pls suggest the compatible sfp module which should work with both switches , foc cable is singe mode ,waiting for your reply
Basically, there are two kind of SFP transceiver. The one comes with proprietary code, another type with generic code. The Cisco switch needs the SPF transceiver with proprietary type. I know D-link use generic, but not sure about Aruba. Once the code is being determined, now you can select connector to match the fiber optic cable - eg. LC or SC, single mode, BiDi for one strand connection.
Don't fiber optic cables come with a pair of 2 cables, Tx and Rx? So how does this work with Bi-di transceivers?
The BiDi SFP modules support bi-directional data transmission, which means they can transmit and receive optical signals simultaneously on a single fiber strand by utilizing different wavelengths for each direction. Also, fiber optic cables don't necessarily come with 2 cables. The simplex fiber optic cable only consists of a single strand of optical fiber.
Hi i have a question,
is fiber still supported when i have two different switches?
For example one switch is a Cisco and the other one is a Dell or a Media Converter?
Yes, fiber optic connectivity is supported between switches from different manufacturers through the use of fiber optic cables and compatible transceivers or media converters. Ensure that both switches have compatible fiber optic interfaces. Common types include LC, SC, or MTP connectors. The choice of single-mode or multi-mode fiber depends on the distance and bandwidth requirements. Also the switches may require compatible fiber optic transceivers (also known as SFP or GBIC modules). Different manufacturers may use different transceiver models, so make sure the transceivers on both ends are compatible.
Why does sfp transceivers usually stop working? Is it possible that from lighting?
SFP transceivers can stop working due to various reasons: electrical surge/lightning strike, overheating, physical damage, and compatibility issues. To protect SFP transceivers from lightning strikes or electrical surges, consider using surge protectors or lightning arresters on your network equipment.
Is there use for a SFP transceiver for a 2.5G home betwork? I'm going to do a total renovation of my home and I was thinking of cabling the home with Eth cat.7 cable which is capable of 10G. Any need for SFP+/fiber?
For most home networks, Cat 7 cabling will be more than sufficient to support current and near-future bandwidth needs, including 2.5G and up to 10G speeds, within the standard Ethernet range (up to 100 meters).
But if your home layout requires cable runs longer than 100 meters or there are high-denisty areas with EMI, fiber would be a better choice. It's ideal for high-bandwidth requirements, such as a home lab, large-scale media production, or data-heavy work-from-home setups.
@@Fastcabling thanks for the detailed answer
My pleasure!
It takes 3 hours for the NVR to load,
Two converter connect to Poe switch with cat6 cable.
Can the cat6 cause the delay
2 of 16 NVR will load in time while the 3rd one takes hours to loads
I don’t tell it cause by the cable. You can’t feel the delay causing by the cables. You mentioned hours, I think there is some issue either with your setup or the devices. You can simply test the system with short patch cord to rule out the cause from the connection.