LattisNet
Encyclopedia
LattisNet was a family of computer networking hardware and software products built and sold by SynOptics Communications
(also rebranded by Western Digital
) during the 1980s. Examples were the 1000, 2500 and 3000 series of LattisHub network hubs.
LattisNet was the first implementation of 10 Megabits per second local area network
ing over unshielded twisted pair wiring in a star topology.
as the primary form of premise cabling in Ethernet
implementations. In 1985 SynOptics
shipped its first hub for fiber optics and shielded twisted pair.
SynOptics' co-founder, Engineer Ronald V. Schmidt
, had experimented with a fiber-optic variant of Ethernet called Fibernet II while working at Xerox PARC, where Ethernet had been invented.
In January 1987 SynOptics announced intentions to manufacture equipment supporting 10 megabits/sec data transfer rates over unshielded twisted pair, telephone wire.
In August 1987 New York based LAN Systems, Inc. completed the equipment testing and praised SynOptics for successfully deploying a 10Mb/s network that supported workstations up to 330 feet from the wireing closet, because of their careful control of EMI and RFI.
Novell
reported that the LattisNet equipment performed better than RG-58U coaxial cable.
This same year HP proposed a study group be formed to look into standardizing Ethernet on telephone wires.
SynOptics' investor, Menlo Ventures
explained its position on joining the IEEE for standardization.
In 1990 the IEEE issued an Ethernet over twisted pair
standard known for transmitting 10 Mb/s, or 10BASE-T (802.3i).
Ethernet / 10BASE-T / LattisNet discussions: A method to identify the type of 3000-series modules
SynOptics
SynOptics Communications was a Santa Clara, California-based early computer network equipment vendor from 1985 until 1994, when it began a series of mergers....
(also rebranded by Western Digital
Western Digital
Western Digital Corporation is one of the largest computer hard disk drive manufacturers in the world. It has a long history in the electronics industry as an integrated circuit maker and a storage products company. Western Digital was founded on April 23, 1970 by Alvin B...
) during the 1980s. Examples were the 1000, 2500 and 3000 series of LattisHub network hubs.
LattisNet was the first implementation of 10 Megabits per second local area network
Local area network
A local area network is a computer network that interconnects computers in a limited area such as a home, school, computer laboratory, or office building...
ing over unshielded twisted pair wiring in a star topology.
Ethernet variants
During the early 1980s most networks used coaxial cableCoaxial cable
Coaxial cable, or coax, has an inner conductor surrounded by a flexible, tubular insulating layer, surrounded by a tubular conducting shield. The term coaxial comes from the inner conductor and the outer shield sharing the same geometric axis...
as the primary form of premise cabling in Ethernet
Ethernet
Ethernet is a family of computer networking technologies for local area networks commercially introduced in 1980. Standardized in IEEE 802.3, Ethernet has largely replaced competing wired LAN technologies....
implementations. In 1985 SynOptics
SynOptics
SynOptics Communications was a Santa Clara, California-based early computer network equipment vendor from 1985 until 1994, when it began a series of mergers....
shipped its first hub for fiber optics and shielded twisted pair.
SynOptics' co-founder, Engineer Ronald V. Schmidt
Ronald V. Schmidt
Ronald V. Schmidt is an computer network engineer from the United States.-Life:Schmidt was born March 31, 1944, in San Francisco, California.He graduated with B.S. , M.S. , and Ph.D...
, had experimented with a fiber-optic variant of Ethernet called Fibernet II while working at Xerox PARC, where Ethernet had been invented.
In January 1987 SynOptics announced intentions to manufacture equipment supporting 10 megabits/sec data transfer rates over unshielded twisted pair, telephone wire.
In August 1987 New York based LAN Systems, Inc. completed the equipment testing and praised SynOptics for successfully deploying a 10Mb/s network that supported workstations up to 330 feet from the wireing closet, because of their careful control of EMI and RFI.
Novell
Novell
Novell, Inc. is a multinational software and services company. It is a wholly owned subsidiary of The Attachmate Group. It specializes in network operating systems, such as Novell NetWare; systems management solutions, such as Novell ZENworks; and collaboration solutions, such as Novell Groupwise...
reported that the LattisNet equipment performed better than RG-58U coaxial cable.
This same year HP proposed a study group be formed to look into standardizing Ethernet on telephone wires.
SynOptics' investor, Menlo Ventures
Menlo Ventures
Menlo Ventures is a venture capital firm located at 3000 Sand Hill Road in Menlo Park, California.The firm was founded as one of the earliest venture capital firms in Silicon Valley in 1976 and provides provides technology venture capital funding for seed, early stage and growth companies...
explained its position on joining the IEEE for standardization.
In 1990 the IEEE issued an Ethernet over twisted pair
Ethernet over twisted pair
Ethernet over twisted pair technologies use twisted-pair cables for the physical layer of an Ethernet computer network. Other Ethernet cable standards employ coaxial cable or optical fiber. Early versions developed in the 1980s included StarLAN followed by 10BASE-T. By the 1990s, fast, inexpensive...
standard known for transmitting 10 Mb/s, or 10BASE-T (802.3i).
Ethernet compatibility
Of the SynOptics hubs, the 2500 series was only compatible with LattisNet twisted-pair Ethernet; the 1000 and 3000 series featured modules for LattisNet and standard 10BASE-T. In the 1000 series, the 505 modules are LattisNet and the 508 modules are 10BASE-T.External links
(Advertisement)Ethernet / 10BASE-T / LattisNet discussions: A method to identify the type of 3000-series modules