Ptt 278 used as ethernet
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Zercom_
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brupala Posted messages 111942 Registration date Status Membre Last intervention -
brupala Posted messages 111942 Registration date Status Membre Last intervention -
Hello,
I have an old network that is in PTT 278 4 pairs and I would like to know the maximum speed that this line (less than 30 meters) can reach to convert it to Ethernet. I don't see the difference between PTT 298 4 pairs and PTT 278 4 pairs (the diameter?)
Thank you for your answers.
I have an old network that is in PTT 278 4 pairs and I would like to know the maximum speed that this line (less than 30 meters) can reach to convert it to Ethernet. I don't see the difference between PTT 298 4 pairs and PTT 278 4 pairs (the diameter?)
Thank you for your answers.
2 réponses
Hello,
The 298 has 4 twisted pairs, the 278 is generally not twisted, so 8 wires. The twisted pair affects the quality, with 30m, it needs to be tested to see if it will work in 278. There are installations where the ptt278 allows Ethernet to circulate.
Note that on a single-strand cable, you connect 2 female RJ45 connectors at each end: https://forums.commentcamarche.net/forum/affich-37585049-compatibilite-cables-et-prises-rj45
Best regards
The 298 has 4 twisted pairs, the 278 is generally not twisted, so 8 wires. The twisted pair affects the quality, with 30m, it needs to be tested to see if it will work in 278. There are installations where the ptt278 allows Ethernet to circulate.
Note that on a single-strand cable, you connect 2 female RJ45 connectors at each end: https://forums.commentcamarche.net/forum/affich-37585049-compatibilite-cables-et-prises-rj45
Best regards
