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1000 Base-T uses all pairs for bidirectional traffic in the RJ45 connector. cables used should be of Category 5e(nhanced), even though Category 5 cables usually works too.

1000BASE-T (also known as IEEE 802.3ab) is a standard for Gigabit Ethernet over copper wiring (RJ45 connection). It requires, at least Category 5 cable (the same as 100BASE-TX), but Category 5e (Category 5 enhanced) or Category 6 cable may also be used and are often recommended. 1000BASE-T requires all four pairs to be present and is far less tolerant of poorly installed wiring than 100BASE-TX.

Pin Name Description
1 BI_DA+ Bi-directional pair A +
2 BI_DA- Bi-directional pair A -
3 BI_DB+ Bi-directional pair B +
4 BI_DC+ Bi-directional pair C +
5 BI_DC- Bi-directional pair C -
6 BI_DB- Bi-directional pair B -
7 BI_DD+ Bi-directional pair D +
8 BI_DD- Bi-directional pair D -

Each network segment cable length may be up to 100 meters, although several chip manufacturers claim 150 meters. Autonegotiation is a requirement for using 1000BASE-T, according to the standard. Several device drivers will allow you to force 1000 Mbps full duplex to eliminate autonegotiation issues. If pins 4,5,7 & 8 are not connected or punched properly the speed falls back to 100 mbps.

See how to wire your own Ethernet UTP RJ45 connection cable

8 pin RJ45 (8P8C) male схематический вид разъема
Разъем 8 pin RJ45 (8P8C) male
at the cables
На эту распиновку есть 15 отзыв(а): 12 положительных и 3 отрицательных.

Эта распиновка
Распиновка одной картинкой:Ethernet 1000Base-T (Gigabit ethernet)
Ethernet 1000Base-T (Gigabit ethernet) diagram
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Источник(и) этой и дополнительной информации: IEEE Std 802.3, 2000 Edition
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