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| Thread ID: 75358 | 2006-12-25 23:13:00 | Further abuse of Cat5 cable | personthingy (1670) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 509673 | 2006-12-27 03:44:00 | PCtek , why does the 100mb use all 8? Dunno, I only got to the Krone Master Installer level, not the Designer. I lost interest then....... |
pctek (84) | ||
| 509674 | 2006-12-27 03:50:00 | Here we go...... Whats the difference between 100base-T4 and 100base-TX. 100base-T4 wiring uses all 4 pairs (8 wires) and allows for the use of Cat 3, Cat 4 OR Cat 5(e) cables. If you have ANY Cat 3 or Cat 4 cabling in your network you MUST use this standard. Most telephony cables (including 25, 50 or 100 pairs) are rated Cat 3. If your LAN uses these cables ANYWHERE you must use 100base-T4 wiring (see diagram). 100base-TX wiring uses only 2 pairs (4 wires or conductors) but can only be used with Cat 5, Cat 5e or higher cables. w.zytrax.com/tech/layer_1/cables/cables_faq.htm |
pctek (84) | ||
| 509675 | 2006-12-27 05:07:00 | Never come across that at all. CAT3 was always rated as 10Mb, and all the places I dealt had changed out for CAT5e. Some are now moving to CAT6. |
pheonix (36) | ||
| 509676 | 2006-12-27 05:41:00 | According to the information I found from a google search, 100mb cat5 only uses 2 pairs & you can safely use the other 2 pairs for different applications, but 1000mb Cat6 uses all 4 pairs. | Greven (91) | ||
| 509677 | 2006-12-27 06:09:00 | CAT3 = 10Mb/s CAT5 and CAT5e = 100Mb/s CAT6 = 1000Mb/s All above use 2 pair only (send and receive), for the standard 100% over a length of 100Metres horizontally. So you can use say 1 metre of CAT3 at 100Mb/s as the losses are not bad for the length. It's just normal practice to comply with the above CAT standards. Anyway, time to move on as the original poster has had his fears assuaged. |
pheonix (36) | ||
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