Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [fiber]

11 questions
9
votes
2 answers

Orange unshielded coaxial cable

A local ISP is installing fiber optic cable for gigabit internet in my neighborhood. Their construction crews have buried runs of empty conduit which I presume is meant to be filled with fiber or Ethernet cables. They have also been running another,…
Joel Croteau
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2
votes
1 answer

Can an SFP+ transceiver be set up without a protocol IC, etc.?

I am looking to use an SFP+ simplex BiDi transceiver in order to replace two 820 nm HFBR Avago modules, one Tx and one Rx. Being an SFP+ module, this seems to require a lot more circuitry to run than the Avagos, which are basically just LEDs. Can I…
Chalupa
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2
votes
1 answer

set defined output state at start

I'm controlling a trigger system through fiber links. The optical transceiver for triggering the pulse that activate the channel is commanded by a port expander IC to which I send commands through I2C to write its registers. The problem is that once…
Jesús Álvarez
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0
votes
2 answers

What happens when we reach the maximun atenuation in Optical Networks Terminals (Optical fiber )?

Let´s suppose We have the following Optical Network Terminal : According to datasheet, the receiver sensitivity is : -27 dBm Now Let´s suppose We have the following fiber optical network : As we see , the Optical Power Meter show us that we reach…
NIN
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0
votes
0 answers

Serial to Multimode Fiber Converter

I'm looking for a way to convert UART data to multimode fiber. I've seen a few examples of single mode conversions, but that won't fit the application. Has anyone ever done this? I know that most SFP rated for at least 10MB transmission (minimum)…
Jedi Engineer
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0
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0 answers

Maximum Achievable distance, given the maximum delay, in optical fiber (single mode) and ethernet?

I have the following problem to solve. I have to find the maximum achievable distance between two nodes of a network, given the maximum delay possible between them. The connection can be single mode optical fiber or shared ethernet…
Matt193
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0
votes
2 answers

From delay to distance?

I need to estimate the distance of a link having only delay values. How can I do that? I need to estimate this distance for ethernet and optical fiber links. I thought of doing it using the propagation speed over ethernet and fiber, but I don't know…
Matt193
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0
votes
1 answer

Working on live optical fiber

I was recently asked if there was any negative for working on live optical fiber, and I was not sure of the answer. I imagine the answer is don't do it, but aside from specialized glasses to protect from the light, are there other dangers…
Feynman137
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0
votes
3 answers

Why are power losses in fiber-optical cables so high?

Suppose we have two arbitrary points A and B. Transmission between these points is over optical-fiber. We don´t care the wavelength, distance and other stuff. Now suppose we have total attenuation of 16 dB in average between these 2 points.…
NIN
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-1
votes
1 answer

Invert signal from optical transceiver

I want to achieve electrically HIGH state in this receiver (Vo tag), when there is HIGH state in the fiber. What I get now is 5 V when there is no pulse in the fiber and 0.48 V when there is (RXVCC=5 V). I can't understand why the manufacturer…
Jesús Álvarez
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-1
votes
6 answers

Simplest way to transmit digital data?

I have an interesting problem that's been wrecking my brain and would like some help with it. Basically what I have is a voltage readout box that has a few voltage displays on it. I would like to have a second box with the same set of voltage…
Lazyroot
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