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Topic: FOIRL


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In the News (Mon 17 Jun 19)

  
  Ethernet Technical Summary - Chapter 4   (Site not responding. Last check: 2007-11-01)
FOIRL supports point-to-point links up to 1000 meters in length allowing longer distances to be spanned than with a coaxial or twisted pair link.
A 10Base-FL transceiver may be used at one end of a fiber link while an FOIRL transceiver is used at the other end.
However, the maximum segment length is limited to the 1000 meters length specified by FOIRL, and not the 2000 meter length supported by 10Base-FL.
www.stormpages.com /webexpert/LAN/Chapter4.htm   (6523 words)

  
 Network Design - F
Failover is the process of automatically switching from a failed primary device or link to a backup device or link, preferably so fast that users or other devices are not aware of the failure.
FOIRL is an early specification for running 10-Mbps Ethernet over fiber optic cable.
Fibre Channel is a very high-speed, fiber optic data transfer interface based on ANSI FCS.
www.webclasses.net /Courses/Design/6.0/Demo/glossary/f.html   (585 words)

  
 Guide to Ethernet
This problem can be avoided by using only twisted-pair patch cables rated for use in twisted-pair Ethernet systems to make a connection between the MAU in the computer or the hub and the rest of segment.
As the cost of repeaters dropped and more and more multiport repeater hubs were used, it became cost-effective to link individual computers to a fiber optic port on a repeater hub.
Vendors created outboard FOIRL MAUs to allow this, although a repeater-to-DTE fiber connection was not specifically described in the FOIRL standard.
www.uwsg.iu.edu /usail/external/ethernet/ethernet-guide.html   (7214 words)

  
 FOIRL - Fiber Optic Inter Repeater Link
An FOIRL link is not suitable for direct connection to a computer - compare with 10BaseFL.
A standard that defines a fiberoptic link between two repeaters in an IEEE 802.3 network.
Every attempt has been made to provide you with the correct acronym for FOIRL.
www.auditmypc.com /acronym/FOIRL.asp   (335 words)

  
 Fiber Optic InterRepeater Link from FOLDOC   (Site not responding. Last check: 2007-11-01)
The maximum length of a segment is 1 km.
A FOIRL multiport repeater and transceivers are necessary to carry the signal to multiple devices.
The more resent version of Ethernet over fiber optic cables is 10baseFL with a maximum segment length of 2 km.
www.instantweb.com /d/dictionary/foldoc.cgi?FOIRL   (78 words)

  
 Siemens Communications Lexicon - fiber optic inter repeater link (FOIRL)
The optical link segment between the two halves of a remote repeater is standardized by FOIRL (Fiber Optic Inter Repeater Link).
The FOIRL interface typically uses duplex transmissions at a wavelength of 850 nm across fiber optic modes.
If there are four LAN segments and three repeaters, the FOIRL segments can have a length of up to 1000 m.
networks.siemens.com /communications/lexicon/4/f007174.htm   (160 words)

  
 [No title]
Timeplex asserts that a procurement specialist involved with the solicitation said that in order to receive credit for the desirable feature of FOIRL access (see footnote 4, supra), it was necessary to propose and price FOIRL transceivers for all 10Mbps connections on the brouter configurations other than the small brouter.
Timeplex asserts that other offerors were not so advised with respect to FOIRL connectivity, and that to the extent that other offerors were allowed to propose fewer FOIRL devices, it was disadvantaged.
The reference to the support of GET commands by "all offeror proposed network equipment" does not appear to have been intended to be read as broadly as the protesters propose, particularly in light of limitations inherent in at least one of the answers in the amendments.
www.usps.com /lawdept/protestdecisions/1993/9322n24.htm   (8748 words)

  
 10BaseF and FOIRL   (Site not responding. Last check: 2007-11-01)
FOIRL is the original definition of the fiber optic repeater link between two MAUs in an 802.3 network.
FOIRL 802.3 specifies a maximum of 1 km for the inter-repeater link A FOIRL segment can consist of 2 x FOIRL MAUs, or 1 x FOIRL MAU and 1 x 10BaseFL MAU.
Where backwards compatibility with FOIRL is implemented, the segment length is reduced to 1 km per segment.
www.enterasys.com /support/techtips/an0043-9.html   (840 words)

  
 Ethernet Topologies Gigabit LAN Standards Gigabit Ethernet Leads the Way Over Fiber
FOIRL and 10BASE-FL fiberoptic Ethernet differ only in how far each will transmit (the maximum length of a segment).
For FOIRL it is 1 km (0.6 miles); for 10BASE-FL it is 2 km (1.2 miles).
A fiber optic hub or multiport repeater is required to carry the signal to multiple devices (for FOIRL, a FOIRL multiport repeater and transceivers).
www.arcelect.com /ethernet.htm   (3427 words)

  
 10BASE-FL - Wikipedia, the free encyclopedia
It replaces the original FOIRL specification, but retains compatibility with FOIRL-based equipment.
Mixing it with FOIRL equipment, maximum segment length reduces to FOIRL's 1000 meters.
This page was last modified 14:28, 8 August 2006.
en.wikipedia.org /wiki/10BASE-FL   (70 words)

  
 DBAS Codenoll | Products - Active Ethernet NIC's: Product CN-8301
It is completely immune to electromagnetic noise and no form of cable damage, like short circuits, ground faults, reflections, or impedance mismatches, can disable the network.
CodeNet-8301 10BASE-FUFOIRL cards are compatible with other FOIRL or 10BASE-FL products and can be used with other manufacturers' concentrators and repeaters.
CodeNet-8301 10BASE-Ft-/FOIRL adapters are compatible with other FOIRL or 10BASE-FL products and can be used with other manufacturers' concentrators and repeaters.
www.dbasinc.com /products/8301.html   (571 words)

  
 IT Architect | Fiber Optics for Networks | November 1, 1994   (Site not responding. Last check: 2007-11-01)
It's common to associate fiber-optic cabling with high data rate applications such as FDDI and TCNS, but optical fiber can also be used for Ethernet and Token Ring.
The Fiber Optic Inter-Repeater Link (FOIRL) standard is used to connect Ethernet hubs.
FOIRL doesn't boost the data rate for Ethernet - it's still 10Mbits/sec - but it does allow you to connect hubs with cable runs of up to 1km.
www.itarchitect.com /shared/article/showArticle.jhtml?articleId=8711898&pgno=2   (1071 words)

  
 TechFest - Ethernet Technical Summary - Chapter 1   (Site not responding. Last check: 2007-11-01)
Also released in 1985 was the IEEE 802.3b 10Broad36 standard that defined transmission of 10 Mb/s Ethernet over a "broadband" cable system.
The IEEE 802.3d standard defined the Fiber Optic Inter-Repeater Link (FOIRL) that used two fiber optic cables to extend the maximum distance between 10 Mb/s Ethernet repeaters to 1000 meters.
In 1993, the IEEE 802.3j standard for 10Base-F (FP, FB, and FL) was released which permitted attachment over longer distances (2000 meters) via two fiber optic cables.
www.stormpages.com /webexpert/LAN/Chapter1.htm   (1153 words)

  
 Allied Telesyn 2-Port Fiber Optic Micro Repeaters
These micro repeaters allow for connection of an FOIRL segment to either a thinnet (10BASE2) coaxial segment with the AT-MR117F, or to an AUI (10BASE5) coaxial segment with the AT-MR116F.
Segments on either side of the unit support full length, fully repeated transmission and allow the maximum number of nodes specified by the IEEE.
The AT-MR116F (AUI to FOIRL) and AT-MR117F (BNC to FOIRL) have a switch-selection for full repeater or half repeater mode.
www.computernessos.it /ATI/products/prod116.htm   (920 words)

  
 Allied Telesyn 2-Port Fiber Optic Micro Repeaters with Internal Power Supply (AT-MR126F, AT-MR127F)
These micro repeaters allow for connection of a FOIRL segment to either a thin (10BASE2) coaxial segment with the AT-MR127F, or to an AUI (10BASE5) coaxial segment with the AT-MR126F.
The units small size allows for the repeater function to be brought to the desktop or used in a wall mount installation.
The AT-MR126F (AUI to FOIRL) and AT-MR127F (BNC to FOIRL) have a selectable switch for full or half repeater mode.
www.computernessos.it /ATI/products/prod126.htm   (934 words)

  
 6.2 Old and New Fiber Link Segments   (Site not responding. Last check: 2007-11-01)
There are two fiber optic link segments in use, the original Fiber Optic Inter-Repeater Link (FOIRL) segment, and the newer 10BASE-FL segment.
The original FOIRL specification from the Ethernet standard of the early 1980s provided a link segment of up to 1000 meters between two repeaters only.
To deal with this and other aspects of fiber optic Ethernet, a set of fiber optic media standards, called 10BASE-F, was developed.
www.ethermanage.com /ethernet/10quickref/ch6qr_3.html   (454 words)

  
 [No title]
For a 10BASE-T Module the value is 12; for an FOIRL Module, 6; for a Supervisor Module, 1." ::= { exNetSlotConfigEntry 40 } exNetChassisCapacity OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "The number of slots in the chassis for plug-in modules.
All DAVID ExpressNet repeaters implement retiming, so the value on(2) is always returned for this variable." ::= { exNetConcentrator 1 } exNetConcFrmsRxOk OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "A count of frames that are successfully received by the Concentrator.
transmit and receive polarities are swapped For FOIRL ports: the link status is constantly tested; thus, this variable is always meaningful.
www.isi.edu /in-notes/mibs/private.mibs/david.mib   (2381 words)

  
 10BaseF and FOIRL   (Site not responding. Last check: 2007-11-01)
10BaseF, and its predecessor, FOIRL, are the only recommended topologies for inter-building links.
However, they need not be limited to this role.
More commonly, FOIRL (and now, 10BaseF) is used inside buildings to form backbone networks and to connect wiring closets together.
www.waybright.org /neil/presentations/GbE/noframes-800-600/img9.html   (72 words)

  
 DBAS Codenoll | Products - Active Ethernet NIC's: Product CN-8346
CodeNet-8346 10Base-FL, AUI and FOIRL adapters are compatible with other 10Base-FL, AUI and FOIRL products and can be used in an open systems environment with other manufacturers' hubs and repeaters.
Computers can be more than 2000 meters (1.2 miles) from an Ethernet hub, using the 10Base-FL interface, and up to 50 meters (164 feet) from a MAU, using the AUI network interface.
CodeNet-8346 adapters are fully compatible with other 10Base-FL, AUI and FOIRL products and can be used with other manufacturers' concentrators and repeaters.
dbasinc.com /products/8346.html   (514 words)

  
 Miniature Ethernet-to-Fiber Optic Converters M-EFC, M-EFC/U- RAD Data Communications   (Site not responding. Last check: 2007-11-01)
The units convert between IEEE 802.3 electrical signals and optical signals for transmission over fiber optic cable.
They are fully compatible with IEEE 802.3 10BaseFL and FOIRL standards.
The M-EFC unit plugs directly into the DB-15 AUI interface or connects via an AUI cable and is powered via the AUI interface (12V).
www.rad.com /Article/0,6583,25103-Miniature_Ethernet-to-Fiber_Optic_Converters,00.html   (193 words)

  
 Hardened Ethernet Switch - Industrial Ethernet - EtherWAN Systems   (Site not responding. Last check: 2007-11-01)
10BaseFL segments can be up to 3280 feet (1000 meters) long if used with FOIRL, and up to 1.24 miles (2000 meters) if 10BaseFL is used exclusively.
FOIRL is a precursor of the 10BaseFL specification, which is designed to replace it.
Full Duplex When two network devices, such as a card and a switch, can simultaneously send and receive data, effectively doubling the bandwidth of a connection.
www.etherwan.com /glossary.htm   (4444 words)

  
 10baseF   (Site not responding. Last check: 2007-11-01)
10baseF is a set of standards which provides for the connection between repeaters (fiber optic inter-repeater link), FOIRL, and network entities like workstations, 10baseFL (which can also provide the same support that FOIRL can with repeaters).
The advantage of using fiber to on the network is of course the fact that light is not suceptable to the problems of electrical signals over UTP or Coaxial cables.
Can be intermingled with FOIRL technology (note: this limits the maximum segement length to 1000 meters)
www.eece.unm.edu /faculty/rjordan/oldwebsite/440/ether/10baseF.html   (239 words)

  
 6 Canary MFX-1060 10Base-FL Fiber Transceiver FOIRL MAU   (Site not responding. Last check: 2007-11-01)
6 Canary MFX-1060 10Base-FL Fiber Transceiver FOIRL MAU
If you are the winning bidder, click the Checkout button to go directly to my Checkout page!
They have not been tested, and are sold AS-IS. This auction is for a lot of 6 of them.
www.autojunkiesclub.com /items/9704759806.html   (713 words)

  
 Ethernet Scalability Constraints
The original specification for running Ethernet on multi-mode fiber-optic cable was called the Fiber-Optic Inter-Repeater Link (FOIRL) specification.
The newer 10BaseF specification is based on the FOIRL specification, and includes 10BaseFP, 10BaseFB, 10BaseFL, and a revised FOIRL standard.
The new FOIRL differs from the old one in that it allows end-system connections in addition to repeaters and hubs.
www.priscilla.com /enetscales.htm   (469 words)

  
 fold from FOLDOC   (Site not responding. Last check: 2007-11-01)
Previous: fo, FOAD, FOAF, FOCAL, FOCL, FOCUS, focus group, FOD, FOIL, FoIP, FOIRL
The term is more common in systems such as the Macintosh or Windows 95 which have a graphical user interface and provide a graphical file browser in which directories are traditionally depicted as folders (like small briefcases).
Previous: FOCAL, FOCL, FOCUS, focus group, FOD, FOIL, FoIP, FOIRL, fold case, folder
www.instantweb.com /foldoc/foldoc.cgi?fold   (128 words)

  
 GOVERNMENT USE ONLY FOIRL XCVR SMA by ALLIED TELESYN   (Site not responding. Last check: 2007-11-01)
GOVERNMENT USE ONLY FOIRL XCVR SMA by ALLIED TELESYN
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Save up to 60% on millions of brand name Computer products.
www.codemicro.com /fs/p115.html   (85 words)

  
 Scott Mueller Library - Computer Dictionary:Numbers
The following table summarizes the characteristics of the three options, along with the 802.3 FOIRL option.
2-km maximum segment length, 5 repeater maximum cascade, can connect to FOIRL transceivers (with FOIRL limits)
Passive hubs, 500-m maximum segment length, no limit on number of hub ports but 33 ports currently available
www.epmltd.com /e-books/computerdictionary/library.cs.tuiasi.ro/dictionary/sml-computer-dictionary/ch01/001-003.html   (563 words)

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