The advancement of Ethernet took another progressive step in 1990 by developing IEE Std. 802. 3i, this was built to support the 10BASE-T application, providing 10Mb of data transmission over the twisted-pair network cabling London.
Power transmission for SPE IT cabling London is referred to as Power over Data Lines (PoDL). This standard specifies multiple classes of powered devices delivering between 0.5 and 52 watts of power.
Original Source: What is Single Pair Ethernet (SPE)
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What is Single Pair Ethernet (SPE)
In May 1973 while working at Xerox PARC, Bob Metcalf introduced the concept of ethernet.
Following this, IEEE turned the Ethernet concept into a global standard in 1983 with the
release of IEEE Std. 802.3a, this supported 10Mb of data transmission over a coaxial cable.
The advancement of Ethernet took another progressive step in 1990 by developing IEE Std.
802. 3i, this was built to support the 10BASE-T application, providing 10Mb of data
transmission over the twisted-pair network cabling London.
Since then, the evolution of ethernet has grown rapidly. Quickly moving on from coaxial to
twisted-pair copper cabling. This change saw an increase in transmission speeds and reduced
costs. To begin with, only two twisted pairs were used, but this soon evolved to four pairs to
achieve higher data rates. Now Ethernet is one of the most commonly used protocols for
transmitting data between electronic devices. So, what is a single pair ethernet (SPE)?
What is SPE?
Traditional ethernet cables from the LAN sector or Industrial Ethernet cables use two or four
pairs of wires depending on the transmission rate.
Single pair Ethernet cables only contain one twisted pair (single pair). Single twisted-pair
cabling was first used in the 1870s, instead of having two straight wires next to each other, the
conductors were twisted together to improve the electrical performance. The twisting of the
conductors resulted in the cancellation of unwanted electrical noise from nearby pairs or other
sources. In the 1870s, single twisted pair cabling was used to interconnect telephones.
Centuries later, the single twisted pair cabling is still in use. The use of this cable is now
commonly found in building automation, industrial, and automotive applications. SPE offers
additional advantages in comparison to the traditional cable.
1. Thinner bending radii
2. Smaller cables. Saves material and costs. Great for weight and space-saving designs.
3. Transmission rat