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[Christos Ricudis]

costas wrote:

> Άθλια καλωδίωση που πάει από switch σε switch.

To PRWTO pragma pou mporeis na kaneis, me th mikroterh enoxlhsh se olo to 
oikosysthma, einai na dior8wseis thn kalwdiwsh.

To idaniko einai na thn ksanaftiakseis eks'arxhs, me CAT6 cabling. Ayto 
endexomenws na einai dyskolo kai SIGOURA einai akribo kai xronoboro - prepei 
na allakseis ta panta se CAT6-compliant eksoplismo : kalwdia, mprizakia, 
bysmata, patch panels. Epeidh kobw ton kwlo mou oti ta kalwdia anti na 
moirazontai apo ena kanali pou diatrexei olh thn orizontia egkatastash, 8a 
pernane mesa apo toixous, pisw apo gypsosanides, pisw apo biblio8hkes, 
kremasmena sto mpalkoni, katw apo thn apoxeteysh, MESA sthn apoxeteysh, ktl, 
kati tetoio synh8ws einai eksairetika dyskolo.

H epomenh kalyterh lysh einai na baleis CAT6 sta backbone links metaksy twn 
switches - gia kalo kai gia kako, sthn periptwsh pou ginoun upgrade ta panta 
se gigabit - kai na symmazepseis thn katastash sto access kommati. Kshlwse 
ta mprizakia kai des an oi syndeseis akolou8oun to EIA/TIA 568B protypo (ta 
xrwmatakia 8a exoun th seira asproportokali, portokali, asproprasino, mple, 
aspromple, prasino, asprokafe, kafe).

An h egkatastash exei ginei apo hlektrologo, h pi8anothta einai oti 8a exei 
balei ta zeygaria opws tou kaylwse. Oi hlektrologoi kseroun mono tria 
xrwmata : Mple, kafe, kai kitrinoprasino. Apo kei kai pera mperdeyontai 
asxhma, ektos an einai poly psagmenoi kai kseroun kai to mayro kai to gkri.

Se ka8e periptwsh, ean h kalwdiwsh sou den akolou8ei to protypo, th 
ftiaxneis. Ayto apaitei allages mono sta mprizakia kai sto patch panel, an 
eisai tyxeros, sta mprizakia kai sto bysma tou karfwtoy katey8eian kalwdioy 
sto switch an eisai atyxos, h sta dyo akra tou katey8eian karfwtou kalwdiou 
metaksy ypologisth kai switch, an eisai eksairetika atyxos.

Mono ayto an kaneis, an akolou8hseis th swsth syndesmologia sthn kalwdiwsh, 
efoson den yparxei, sou yposxomai oti *8a deis* beltiwsh.


-- 
Christos Ricudis				ricudis at itc.auth.gr
Systems Administrator				+30-2310-998656
IT Support Center
Aristotle University of Thessaloniki, GREECE