Questions tagged [fiber]

Fiber optic data transmission, cabling, connectors, interfaces. Questions should have this tag if they directly involve fiber optic transmission of data, fiber optic cabling and/or connectors, or interface devices directly attached to fiber optic cable.

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2answers
252 views

How do broadband optical transmitters work?

So I'm a hardware engineer learning about networks, and one interesting subject that my book glassed over was how hybrid fiber-coax networks work. One thing that was throwing me off was that the ...
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1answer
116 views

what type of fiber SFP for cisco 6500 Gbic module

I have an old 6500 with 6516a GBIC module (picture) and im planning to do some testing with it. I've already looked over Cisco's product page, and im still having a hard time identifying what SFP ...
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1answer
4k views

Correct way to set up network with multiple routers/access points over fibre/ethernet [closed]

Heading Below is a network map for a network. Router 192.168.0.1 has DHCP enabled. Routers 0.2, 0.3, and 0.4 are connected via their LAN ports to router 0.1 by ethernet cable, and have DHCP disabled ...
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2answers
884 views

Data field and Payload Field in Fibre channel frame header

I came across this image of a FC frame header. I see that there are two fields, a 2112 byte data field and a 2048 byte payload field. I tried to read about how to distinguish among the two, but ended ...
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1answer
77 views

HP Access Switch 1920-48G POE switch

I would like to know whether we can use an HP 1920-48G POE access switch with an HP 5406zl as Core switch. The access switch will be connected through 1 Gbps SFP to the core switch.
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1answer
2k views

how to build a long distance wired network [closed]

My shop is 500 meters far from the outer gate, on a steep hill, and there is no straight path or line of sight between the 2 points. How would be the best way to extend the internet connection from ...
3
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2answers
4k views

sh int transceiver Explanations

When looking at the output of show interfaces transceiver on a Cat 4500X you notice that there is a Tx and a Rx power measurement. My questions about this output are: Why is each transceiver ...
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4answers
481 views

Building too large for ethernet runs

I'm pretty new to network design. I know enough to wire small buildings and such, but I'm puzzled as to how work this one out. A building I'm working on is an odd shape, and very large. ...
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1answer
582 views

raisecom olt (ISCOM5508) default gateway

how can i config the default gateway and the mgmt ip address in this raisecom equipment? Product Name : ISCOM5508 Product Version : P300R003C000T000 ROAP Version : 1.3 System MAC Address:...
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1answer
969 views

Choosing the right SFP+ Transceiver

I am trying to connect a new server of mine to an existing FC Patch Panel on a strand that has been patched to a FC Switch. The Fiber used is single-mode and in order to hook it up, I am using a ...
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2answers
479 views

SFP port with fiber optic cable

I have a switch with 2 SFP port and I want to connect a fiber optic cable to the switch. I need to connect the cable only on one SFP port or on both SFP port?
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1answer
54 views

Fiber Cable speed tester

How to select Fiber Cable (multi-mode or single mode). For example, if i need fiber backbone around 700 meters with 2 GB speed, how i choose, om 2, om 3 or OS 1 & Os 2. Is there any calculator or ...
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2answers
595 views

What certifications are there for Fiber Optic termination and splicing?

As a knowledgeable person in computer networks I have always had an itch for learning how to create custom-length fiber optic cables. So, as a personal goal, I want to get trained and certified in ...
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1answer
64 views

Force10 S4820T Fiber GBIC is not working

One of our clients bought two of these switches. Now, Dell sent a fiber splitter with a 40GB GBIC. See the pictures below: Now, I connect both GBICs and connect both splitters, one in each switch, ...
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2answers
600 views

RCV Err increases and port blinks amber

Sometimes gigabit port starts blinking amber light and when i do sh int count err i can see how "RCV err" growth. SW-Floor-2#show int gig 2/0/27 counters err Port Align-Err FCS-Err ...
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4answers
7k views

Can one fiber be used to transmit and receive signals? [duplicate]

Like I specify in the title, I want to know that one fiber can be used to transmit and receive signals. Whether it can or not, why?
2
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1answer
512 views

Layer 2 Failover

How can I setup a layer2 failover configuration? My Network setup: The distance between Site A and Site B is 2 km. Both sites are connected via a wireless link. As a backup line, we also have a ...
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1answer
135 views

Extending LTE internet from remote location to building on same property

This question may be a bit off-topic for this forum, but I am hoping there are enough experts to take a stab at it anyway. My office is in a rural-ish location - I can only get DSL at 3 Mbps from ...
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1answer
65 views

What is the purpose of defect limit in Zone D in criteria for MM‐PC Connectors (IEC 61300‐3‐35)

Zones in IEC 61300‐3‐35 are defined as shown on this picture. However the optical signal is transmitted by the Zone A - Core. Light is transmitted and retained in the “CORE” of the optical fiber ...
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0answers
4k views

ASR1006 Link Down Due to Remote Fault

We have 10G fiber running since 1 year but today I have migrate that same link to ASR1006 and I am seeing following error, what could be the problem? Oct 7 17:29:48.211: %IOSXE_SPA-6-UPDOWN: ...
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1answer
238 views

Power at the terminals of a PLC fiber optic splitter

I have a 1xN PLC fiber optic splitter which works like this: The optical power of the incoming signal is P; the power in each outgoing cable is P/N. I want to use the splitter as a combiner. If the ...
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2answers
217 views

What are the implications of 'saturating' a broadband connection?

We recently switched from a business-class cable connection (100/20) to a symmetrical (100/100) fiber one. This serves a front office, a media department, and several client computers on any given day....
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6answers
21k views

Can a single optical fiber support full-duplex communication?

Can a single-mode single optical fiber support full-duplex communication, or does it have to be two fibers, one for each direction?
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2answers
100 views

Need an estimate of the max power density

Here is an image of a 1x64 fiber optic splitter/combiner: I am assuming these are plastic/polymer fibers. A very similar box (http://www.ebay.co.uk/itm/SC-UPC-1x32-Fiber-Optic-Splitter-PLC-Splitter-...
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3answers
8k views

Fiber cable mixing single mode with multi mode

Does following scenario work? We have single mode fiber running between two building, but we have MMF patchcord connected to SPF (SFP-10GBase-SR). [SPF]---MMF----[=======SMF======]----MMF---[SPF] I ...
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2answers
77 views

Two different FS transceivers on point to point link

We have Cisco router with XFP-10GLR-OC192SR fiber transceivers and other end we have 10GBASE-SR SFP+ does that work to different capability. In short one side LR and other side SR fiber port does ...
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2answers
874 views

Why is laser light used in single-mode step index optical fiber?

Why lasers for single mode? It’s not about the brightness, for you can get some seriously powerful LEDs. And it’s not about the size of the core, we have lenses for that. So Why is laser light used in ...
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2answers
313 views

Fiber Type and transceiver model required

We have an existing 10 G p2p link between our Datacenter ( DC) and Corporate Office ( HQ )with a service provider, Lets call A When A did our install they have used a Cienna box on HQ side , I ...
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1answer
60 views

Active SC fiber connection not 'turning on' port

Multimode LC connected to Catalyst 2950. Other end of cable connected to Catalyst 2900 Series X 100baseFX connector. When the two switches connect via fiber there seems to be no communication. The ...
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1answer
247 views

5GbE over fiber optic cable with SFP+ [closed]

I have to build a 5GbE link with a SFP+. Can i use the one that is rated for 8Gbps? And what kind of NIC should I use on host PC?
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6answers
2k views

New install Cisco 3850's not communicating over Fiber Uplinks

I have replaced old Cisco 1900 switches with 3850's in my plant process areas. Added Fiber links between 3850's for increased performance. I can't get data transfer through the fiber uplinks. I have ...
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1answer
317 views

Need fiber connection between switches

What kind of fiber connection does the top switch use? I know the bottom switch uses a multi-mode MTRJ connector but I want to connect the bottom switch to the top switch. This is practice for the ...
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2answers
494 views

What type of fiber connection is this?

I have a Cisco 2950 switch at home with the same fiber port in this picture. Can anyone tell me what type of port this is? LC, SC, FC, MTRJ? I am new to fiber optic ethernet. I'm pretty sure this ...
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3answers
696 views

Direct-burial cable: fiber vs cat-5e/ cat6

Apologies if this isn't the right place for this question. I'm converting an out-building to a home office. The structure is approximately 175 feet from the house. We're digging a trench for a 240V ...
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3answers
801 views

Looking to Extend Fiber Network

The cable in this image: is 75ft and is for my ISP. I'd like to replace it with one that is 2,000ft and run it buried outside to give internet connectivity to another building on my property. I've ...
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2answers
554 views

Fiber Network Bandwidth Control without Radius/PPPoE (Service Provider-Limit Client Bandwidth)

I have been reading and watching some information regarding fiber networks and their deployment. One interesting point that was raised was that in a fiber network generally a DHCP server is used for ...
2
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4answers
7k views

What does “10Gbps wave connection” mean?

When I work with multiple ISPs, they refer a connection type as a "10 Gbps wave connection". What does it really mean? I can understand 10 Gbps fiber but what does "wave" meas?
2
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1answer
419 views

Is a direct GPON ONT connection faster than through an ethernet ONT? [closed]

If I have a GPON ISP, is it possible, and if possible, is it faster or better, to use a GPON ONT<->SFP adapter directly into a server rather than using a GPON ONT<->GigabitEthernet interface or ...
3
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2answers
225 views

When is the connector's damage a good reason for a new pigtail welding?

I have recently seen a few pictures of optical fibre connectors taken by a microscope after those connectors had been cleaned. The picture states, that the connector fails IEC 61300-3-35 norm. Like ...
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2answers
2k views

In Fiber Optic Telephone line, how light signals are converted to the voice signals? [closed]

I have been learning how internet data travels in different kind of Broadband access. In case of telephone broadband, voice signals travels through the telephone line. At the user premise, the modem ...
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3answers
253 views

Are all same type fiber optic transceiver compatible?

Can I order a 1000BASE-LX transceiver from any source and it will be compatible with all others 1000BASE-LX ? Would a link with a Juniper 1000BASE-LX and a TrendNet 1000BASE-LX transceiver work?
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1answer
199 views

Connect Cisco 3560x with LinkSys SRW2008 via Fiber

We have several buildings on campus. In our main building we have a core switch which is a Cisco 3560X (with a C3KX-NM-1G module installed) and a Cisco SR2024, among other switches. In another ...
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2answers
184 views

ELI5 – basic questions regarding MMF

We have a few fiber optic connections between our buildings, and admittedly we haven't a bloody clue about them (other than "all buildings have SMF, except one that has MMF because reasons, and we're ...
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1answer
29 views

Power Budget Based on Miniums?

I'm currently looking at 40Gbase-LR and am curious about the advertised power budget. Here are the specifications: Transmit max 2.30dBm Transmit min -7.00dBm Receive max 2.30dBm Receive ...
2
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3answers
2k views

using fiberoptic for long-distance ethernet connection [closed]

I am trying to help provide decent (better than ATT's awful 3Mbps-on-a-good-day DSL) internet service to a cluster of homes in our rural neighborhood. The first house (near the main road) has good ...
3
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1answer
48 views

Fiber Trenching Design (L1)

We are in the process of building a new campus which will be 10 single-story buildings on 20 acres. The buildings are laid out in a U shape. The bottom of the U will host all IT services (servers, DC, ...
2
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3answers
122 views

Armored Fiber Installation

Can I run a single Corning 12-strand armored fiber cable to a series of security cameras? I don't know the details of fiber installation, so I'm wondering if strands can be split off along the way (...
2
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1answer
517 views

What will be the compatibility/communication issues of using media converter at one end and fiber switch at the other end.?

Can anyone please explain me what will be the compatibility/communication issues of using media converter at one end and fiber switch at the other end.? if no, then will different brand of fiber ...
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1answer
94 views

About Optic Fiber Connection

I have a practical doubt. Can someone explain to me if i can connect 2 networks equipments using XFP and SFP+, MM the two, accross a SM fiber, ´cause i recently made the escenario and did not work. ...
2
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1answer
587 views

Layer 1 problem - fiber ethernet won't connect unless held in

I'm attempting to uplink an older D-Link DGS-1224 switch to an HP Procurve 2810 using a 50 meter MM OM3 fiber cable on the bench before running the cable in the plenum for production. Cable is high ...