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one-pair Ethernet (UTP) (OPEN)

One-Pair Ethernet (OPEN) is an alternative to Single-Pair Ethernet( SPE). It is a transmission technology for Ethernet that was developed for the physical layer as part of BroadR-Reach. With this technology, the bridgeable distances for Fast Ethernet have been extended to 700 m.

One-pair Ethernet uses a UTSP cable, Unshielded Twisted Single Pair (UTSP), as the transmission medium and works with Fast Ethernet according to 100Base- TX with ternary pulse amplitude modulation (PAM3), an improved coding with which the required bandwidth is reduced and echo cancellation. Communication is bidirectional over a single wire pair.

OPEN meets the stricter electromagnetic compatibility( EMC) requirements of automotive technology and is used in automotive Ethernet, among other applications. The specifications of One-Pair Ethernet are developed by the OPEN Alliance BroadR Reach( OABR) and standardized by the IEEE working groups802.3bw under 100Base- T1 and 802.3bp under 1000Base-T1.

Englisch: one-pair Ethernet (UTP) - OPEN
Updated at: 22.09.2019
#Words: 138
Links: Ethernet, synchronous payload envelope (Sonet) (SPE), transmission, physical layer (PHY), unshielded twisted single pair (UTSP)
Translations: DE

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