Good morning, Am DATE hackte AUTHOR in die Tasten: Joe > On Fri, 9 Nov 2018 12:40:03 +0200 > "Michelle Konzack" <[email protected]> wrote: >> Gigabit, as someone sugested, would require OM4 cables which are >> twice as expensive and also the Networkcards and switches. > > How much is single-mode fibre? The cheapest single-mode SFPs are > 1.25GB/s, and the fibre will handle sixteen 3GB/s signals optically > multiplexed, if not more. I've been out of it for four or five years.
A 100m Earthcabel OM4 for 1 GBit (mimited to 550m) cost around 280, while an OM3 Earthcable for 100Base-FX with Duplex SC connectors cost only 90. Also I have 8 Microsense Switches (1x 100Base-FX, 7x 100Base-TX) which you can get on eBay for less then 30/piece including shipping. The TP-Link MC100CM Media Converter (100Base-TX->100Base-FX with Dupex SC) cost less then 32/piece (Brandnew with waranty) directly at TP-Link on eBay or lesser (refurbished) from other sellers. I got 3 of them in Germany for 47 including DHL shipping to Estonia. Need still 3 Media Converters more and maybe 2-3 spare. Doing this with GBit would cost more then 3000 in total because of the very expensive OM4 Earthcabel. Also a 1GBit Network card cost roughly 140 in Germany. In Estonia it is out of question to buy it (200). Oh, to isolate the Serverbunker from the IP-Cams, the ALCASA Elektronik AG offerd me OM3 Earthcable with 8 Fasern (???) and on each end 4 Duplex SC Connectors, which I can put immediately into the ground to the Portal of my Farm. This Allow me to install immediately the first Microsense Switch with the SIP Interphone and the first IP-Cam plus a Siemns LOGO! 2BA8. For the IP-Cams on the street corners on the Farm I would then need only the Duplex SC Adapter and continue with 100-150m Fiber Patchkabel. Next year I can continue with another 200m Patchcable for the forest for which I need to slice the street an need an authorisation, but after the winter this is no problem, because it is only a 8t light street which is repaired after each winter (do not ask, why estonians do this) I hope, I get all prices together in the next days Thanks in advance -- Michelle Konzack Miila ITSystems @ TDnet GNU/Linux Developer 00372-54541400
