tmc8080
join:2004-04-24
Floral Park, NY
| loop lengths?
I think the big deal is having odd loop lengths... usually fiber optic cables have to be of a certain length to actually work.. usually cutting it with a pair of scissors is a big no-no especially if your over or under the spec for loop lengths.. they measure and deploy cables after they measure the distance it needs to run (and spool up the slack)-- if they can cut and paste anywhere, that would save loads of time, I guess. |
smcallah
join:2004-08-05
Home
| said by tmc8080  : usually fiber optic cables have to be of a certain length to actually work.. Usually? I would say rarely, if ever with technology from the last 10 years at least. I've never had to use a certain length fiber to have a circuit work. I use 1 meter up to 100 meter lengths between identical transceivers.
And I've never heard anyone say, "That cable needs to be X.X meters long or this circuit isn't going to work."
Now, if you go beyond the length that is necessary for a certain transceiver, then yes, the circuit may not work or have errors. But there is no "certain" length a fiber must be, it is usually, an "up to" length.
And if you have long reach transceivers that would overpower on a short fiber, then you just add attenuators to reduce the light getting through. |
