SOPTO Technologies is proud to announce the release of the MAX-510 Mini Linux-ready ARM9 Computer. The new MAX-510 is a Mini Linux-ready ARM9-based computing platform for embedded headless run-only application. It comes equipped with two Ethernet, eight Serial ports, two USB host ports, plus one internal SD memory card slot and twenty-one CMOS/TTL-level GPIOs in an incredible small package measuring only 160x104x32 mm. The MAX-510 is a true Linux computing platform and supports versatile file systems.
Users can operate the MAX-510 the same way as they do on a normal Linux desktop. It comes with two standard 10/100Mbps Ethernet port for wired networking. It can also easily support wireless IEEE-802.11b/g by simply plugging an USB Wi-Fi dongle into the unit.
The MAX-510 provides eight 921.6Kbps high-speed Serial ports. Ports 1, 5, 6, 7, and 8 can be configured as RS-232, RS-422 or RS-485. Ports 2, 5, 6, 7, and 8 features full RS-232 support for modem connection. Ports 3 and 4 support standard RS-232s.
The MAX-510 also comes with twenty-one CMOS/TTL-level digital I/Os, an optional SD flash memory card slot that can be utilized as an additional hard drive, and Open-source GNU Tool Chain, including C/C++ cross-compiler and POSIX standard C/C++ library, that’s bundled with the MAX-510 for free.
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2013年6月6日星期四
IP67 Rated Ruggedized Industrial Ethernet Switch
SOPTO Technologies is proud to announce the release of our newest line of IP67 rated Industrial Managed Ethernet Switches. Each of the IP67 switches is available in an extended operating temperature model that can withstand temperatures of -40°C to 75°C. The units are EN50155 compliant and Class 1, Division 2 rated which makes them suitable for railway applications as well as hazardous location environments, respectively.
There are three models in SOPTO' new product range. The LNX-800N-67-T has 8 x 10/100TX ports, while the LNX-1002Nx-67-T (x: M- Multi-mode, S- Single mode) has 8 x 10/100TX and 2 x 100FX ports. The models are designed with circular M12 connectors for Fast Ethernet interface, and provide rugged construction which complies with IP67 standards, therefore, making the equipment ideal for damp, dusty, and other harsh industrial environments.
The IP-67 Managed Industrial Switch Models boast a backup power solution with dual power inputs and management features that include VLANs, IGMP Snooping, IPv6 support, Port Trunking with LACP, LLDP, SSH, SSL, and route redundancy through RSTP or from SOPTO's proprietary ring. The Switches reduce installation costs, ensure real time operation, increase network reliability, and are compact enough to be mounted anywhere, making them suitable for space-constrained environments and an ideal choice for many industrial applications.
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http://www.alivenotdead.com/zerolang/SOPTO-Introduces-New-Gigabit-Fiber-Media-Converter-profile-3071611.html
There are three models in SOPTO' new product range. The LNX-800N-67-T has 8 x 10/100TX ports, while the LNX-1002Nx-67-T (x: M- Multi-mode, S- Single mode) has 8 x 10/100TX and 2 x 100FX ports. The models are designed with circular M12 connectors for Fast Ethernet interface, and provide rugged construction which complies with IP67 standards, therefore, making the equipment ideal for damp, dusty, and other harsh industrial environments.
The IP-67 Managed Industrial Switch Models boast a backup power solution with dual power inputs and management features that include VLANs, IGMP Snooping, IPv6 support, Port Trunking with LACP, LLDP, SSH, SSL, and route redundancy through RSTP or from SOPTO's proprietary ring. The Switches reduce installation costs, ensure real time operation, increase network reliability, and are compact enough to be mounted anywhere, making them suitable for space-constrained environments and an ideal choice for many industrial applications.
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http://fiberoptic.bloguni.com/2013/06/06/new-8-port-industrial-rs-232422485-universal-input-pci-express-card/
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http://www.alivenotdead.com/zerolang/SOPTO-Introduces-New-Gigabit-Fiber-Media-Converter-profile-3071611.html
New Compact Linux-ready ARM9 Computers
SOPTO Technologies is proud to announce the release of the MAX-500 and MAX-504 Compact Linux-ready ARM9 Computers. The MAX-500/504 is the world's smallest Linux-ready ARM9-based computing platform for embedded headless run-only application.
It comes equipped with one Ethernet, four serial ports, two USB host ports, plus one internal SD memory card slot in an incredible small package measuring only 78x108x25 mm.
The MAX-500/504 is a true Linux computing platform and supports versatile file systems. Users can operate the MAX-500/504 the same way as they do on a normal Linux desktop.
It comes with one standard 10/100Mbps Ethernet port for wired networking. It can also easily support wireless IEEE-802.11b/g by simply plugging an USB Wi-Fi dongle into the unit.
Also, the MAX-500/504 provides four 921.6Kbps high-speed serial ports for communication with RS-232/422/485 devices. Port 1 can be configured as RS-232, RS-422 or RS-485. Port 2 features full RS-232 support for modem connection and Port 3 & 4 support standard RS-232s.
Moreover, Open-source GNU Tool Chain (including C/C++ cross-compiler and POSIX standard C/C++ library) is bundled with the MAX-500/504 for free, making the MAX-500/504 Compact Linux-ready ARM8 Computer a very customizable and powerful computing platform.
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http://sopto-10gmodule.blogspot.com/2013/06/sopto-technologies-announces-dual-rate.html
http://geponsolution.blog.fc2.com/blog-entry-171.html
http://blogs.realtown.com/sopto/2013/06/06/new-1000baset-to-1000basesxlx-media-converters/
It comes equipped with one Ethernet, four serial ports, two USB host ports, plus one internal SD memory card slot in an incredible small package measuring only 78x108x25 mm.
The MAX-500/504 is a true Linux computing platform and supports versatile file systems. Users can operate the MAX-500/504 the same way as they do on a normal Linux desktop.
It comes with one standard 10/100Mbps Ethernet port for wired networking. It can also easily support wireless IEEE-802.11b/g by simply plugging an USB Wi-Fi dongle into the unit.
Also, the MAX-500/504 provides four 921.6Kbps high-speed serial ports for communication with RS-232/422/485 devices. Port 1 can be configured as RS-232, RS-422 or RS-485. Port 2 features full RS-232 support for modem connection and Port 3 & 4 support standard RS-232s.
Moreover, Open-source GNU Tool Chain (including C/C++ cross-compiler and POSIX standard C/C++ library) is bundled with the MAX-500/504 for free, making the MAX-500/504 Compact Linux-ready ARM8 Computer a very customizable and powerful computing platform.
Related:
http://sopto-10gmodule.blogspot.com/2013/06/sopto-technologies-announces-dual-rate.html
http://geponsolution.blog.fc2.com/blog-entry-171.html
http://blogs.realtown.com/sopto/2013/06/06/new-1000baset-to-1000basesxlx-media-converters/
2013年5月23日星期四
TIGHT-BUFFERED CABLE
With tight-buffered cable designs, the buffering material is in direct contact with the fiber. This design is suited for "jumper cables" which connect outside plant cables to terminal equipment, and also for linking various devices in a premises network. Multi-fiber, tight-buffered cables often are used for intra-building, risers, general building and plenum applications.
The tight-buffered design provides a rugged cable structure to protect individual fibers during handling, routing and connectorization. Yarn strength members keep the tensile load away from the fiber.
As with loose-tube cables, optical specifications for tight-buffered cables also should include the maximum performance of all fibers over the operating temperature range and life of the cable.
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UTStarcom launches PTN 735 packet-optical transport platform
UTStarcom Holdings Corp. (NASDAQ: UTSI) has expanded its NetRing TN line of packet-optical transport systems with the upgraded PTN 735.
The newly upgraded PTN 735 product offers unified loading capacity and improved processing capacity. The upgrade enhances the quality of service that customers can provide, while its improved design and smaller size helps improve profitability, UTStarcom asserts.
The company says it successfully completed a field trial of the PTN 735 with SOFTBANK BB Corp. in 2010, after which SOFTBANK deployed the platform throughout Japan.
UTStarcom has offered its NetRing TN Packet Transport Network (PTN) systems since 2006. The NetRing TN is based on the MPLS-TP.
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Multiwavelength optical networking
Multiwavelength optical networking (MONET), is a method for communicating digital information using lasers over optical fiber.
The method provides the next level of communication networks after SONET optical networks. MONET optical networks provide an even greater bandwidth capacity.
This new method employs Wave division multiplexing (WDM) technology for transporting large amounts of telephone and data traffic and allow for interoperability between equipment from different vendors.
First developed by the secretive National Security Agency as author James Bamford points out in his book, "Body of Secrets: Anatomy of the Ultra-Secret National Security Agency". It was also discussed at the 1996 Military Communications Conference.
Related:
http://geponsolution.blog.fc2.com/blog-entry-168.html
This new method employs Wave division multiplexing (WDM) technology for transporting large amounts of telephone and data traffic and allow for interoperability between equipment from different vendors.
First developed by the secretive National Security Agency as author James Bamford points out in his book, "Body of Secrets: Anatomy of the Ultra-Secret National Security Agency". It was also discussed at the 1996 Military Communications Conference.
Related:
http://geponsolution.blog.fc2.com/blog-entry-168.html
2013年5月21日星期二
The advantages of using fibre optics
Because of the Low loss, high bandwidth properties of fiber cable they can be used over greater distances than copper cables, in data networks this can be as much as 2km without the use of repeaters. Their light weight and small size also make them ideal for applications where running copper cables would be impractical, and by using multiplexors one fibre could replace hundreds of copper cables.
This is pretty impressive for a tiny glass filament, but the real benefits in the data industry are its immunity to Electro Magnetic Interference (EMI), and the fact that glass is not an electrical conductor. Because fibre is non-conductive, it can be used where electrical isolation is needed, for instance between buildings where copper cables would require cross bonding to eliminate differences in earth potentials. Fibres also pose no threat in dangerous environments such as chemical plants where a spark could trigger an explosion. Last but not least is the security aspect, it is very, very difficult to tap into a fibre cable to read the data signals.
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First a bit history
In 1870, John Tyndall demonstrated that light follows the curve of a stream of water pouring from a container, it was this simple principle that led to the study and development of applications for this phenomenon. John Logie Baird patented a method of transmitting light in a glass rod for use in an early colour TV, but the optical losses inherent in the materials at the time made it impractical to use.
In the 1950's more research and development into the transmission of visible images through optical fibres led to some success in the medical world, as they began using them in remote illumination and viewing instruments. In 1966 Charles Kao and George Hockham proposed the transmission of information over glass fibre, and they also realised that to make it a practical proposition, much lower losses in the cables were essential. This was the driving force behind the developments to improve the optical losses in fibre manufacturing, and today optical losses are significantly lower than the original target set out by Charles Kao and George Hockham.
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TE Connectivity wins $400 million network connectivity contract for Australian NBN high-speed broadband rollout
TE Connectivity (formerly Tyco Electronics) won a five-year, $400 million contract from NBN Co. to supply network connectivity products for the Australian government's National Broadband Network (NBN) program. The NBN program will bring high-speed broadband services to Australia. To date, TE Connectivity and ADC have supplied more than $4 million of passive optical equipment into NBN Co's First Release sites, which are currently well under construction. TE Connectivity acquired ADC in December 2010.
"We are thrilled to have been selected again as an NBN Co partner and we look forward to continuing our strong relationship. This is a very important program for NBN Co and for the citizens of Australia. We are proud to be part of the team that will bring high-speed broadband services to Australia," says Alan Clarke, president of TE Connectivity's Network Solutions segment.
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2013年5月17日星期五
PTGi wraps Australian operations sale to M2
Primus Telecommunications Group Inc. (NYSE:PTGI) has completed its $195.7 million sale of its Australian unit to M2 Telecommunications Group.
With the deal complete, PTGi put about $9.8 million in an indemnification escrow in the event that there are indemnification claims by M2 following the closing.
The service provider's board of directors is now considering how it will use the proceeds from the sale, including new capital investments, note repurchases or redemptions, special dividends and share repurchases.
In addition to its Australian operations sale, the service provider's special committee is examining a number of options for the company, including a sale, merger, joint venture agreements, or the sale or spinoff of other PTGi business units. The timing of the deal was interesting because it happened after it established a wholesale agreement to offer services via Australia's National Broadband Network in January. This agreement would have enabled it to compete with incumbent Telstra.
Meanwhile, Primus Canada has been divided up into two different organizations: a data center business and another serving residential and business customers.
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SPD Arrest Man for Stealing $150K of Fiber Optic Cable
The Sarasota Police Department said Officer Jason Frank was on patrol on May 7 when he observed a red Chevrolet van parked on the sidewalk in the 700 block of S. Tamiami Trail.
Frank pulled up behind the suspicious vehicle and as he made contact with the driver, Manuel De Jesus Tena, 49, the officer observed that the driver was very nervous, according to a SPD release.
SPD said Frank observed a large spool of black cable in the back of the van. He also could see similar cable hanging from a telephone pole that appeared to have been cut. Frank asked Tena if he was ok, and why he was parked on the sidewalk. According to SPD, Tena turned and pointed at the spool of cable and stated, I stole it, I was going to try to sell it. I've been out of work for three years.Wire cutters were found in the pocket of Tena's shorts.
Tena was arrested for Grand Theft. The fiber optic cable is 24,624 feet long and is valued at $6.00 per-foot. Total value in cable was in excess of $150,000; however the cable was recovered by the officers. Tena was charged with Grand Theft (in excess of $100,000) and Criminal Mischief (damage to property in excess of $1,000).
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KC finds stronger-than-expected fibre broadband take-up
East Yorkshire internet service provider (ISP) KC saw its revenues increase in the year to March 31st 2012, partially driven by the strong performance of its fibre optic broadband product.
The company's turnover for the 12-month period stood at £103.6 million, up by 1.1 per cent on the pound 102.5 million it earned during the previous financial year.
Explaining the result, KC said it benefited from increasing demand for higher bandwidth services from business customers and growth in the consumer market thanks to the continued migration of subscribers to bundled packages.
In addition, the company was boosted by more customers upgrading to its home phone service KC Talk, while early indications suggest a higher-than-expected level of take-up for its fibre optic broadband service.
The ISP is currently rolling out 100Mbps broadband throughout east Yorkshire and is looking to deliver the technology to 15,000 properties by the end of 2012.
Last month, KC deployed its 100Mbps service to the market town of Driffield, allowing local residents to download a typical music album in just five seconds and a high-definition film in around seven minutes.
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2013年5月16日星期四
Security implications of software-defined networks
With only a handful of very small software-defined networks actually in production around the world, most SDN conversations are purely academic. But that hasn't impeded the interest and announcements that seem to be on an accelerated pace in recent weeks and months (see sidebar below). Why the flurry of announcements? The reason is because of the enticing potential of SDNs.
By separating the control plane from the data plane, which essentially removes and then centralizes the brains from the muscle of the network, you can quickly make changes to improve the speed, reliability, efficiency and even security of that network. You control the network's layout and flow, so you can define and distribute loads, optimize and prioritize traffic, and scale services or capacity up or down with just a few clicks, that is in theory. That's the key. Commercially available solutions that enable you to realize the potential of SDNs are simply not there yet. Assuming they are on their way, from vendors, such as IBM (NYSE: IBM), NEC, HP (NYSE: HPQ), Big Switch, Nicira, and still unknown/unannounced players, it's important to think through some of the security implications of this new architecture.
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XLerate High-Speed I/O Cabling Provides of FCI Speeds up to 120Gb/s in Copper & Fiber Optic
FCI has launched a new line of high-speed I/O cabling solutions. The XLerate is available in bandwidths from 10Gb/s up to 120Gb/s, in both copper and fiber optic options, making the product line an ideal fit for data center, high-performance computing, and switching applications.
The XLerate portfolio comprises copper and fiber optic solutions that deliver aggregated bandwidth ranging from 10Gb/s up to 120Gb/s in various industry standard-compliant interfaces. The product line is cost-effective in that it simplifies the design process by providing a limited number of discrete components in the link; additionally, it allows installers, OEMs, and VARs to go to one source for connectors, EMI cages, transceivers, and optical and copper cable assemblies. The XLerate solutions support both Infiniband and Ethernet protocols.
XLerate cabling is plug-and-play, and active optical cables (AOC) provide a closed optical system for worker safety and protect the cable from dust contamination. The assemblies are 100% final tested, assembled in a clean room environment, provide optimum signal integrity, and an aggregate bandwidth of up to 120Gb/s.
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2013年5月15日星期三
Fiber protection boxes expand Clearfield’s CraftSmart line
Clearfield, Inc. (Nasdaq:CLFD) has added CraftSmart Fiber Protection Boxes (FPB) to its CraftSmart product line, the company says. This is the second recent expansion of the CraftSmart portfolio, following the CraftSmart Fiber Protection Pedestals and Vaults (see Clearfield introduces CraftSmart enclosure line for optical protection). The CraftSmart products are designed to complement Clearfield’s FieldSmart platform of inside plant fiber panels, outside plant cabinets, and wall boxes.
Similar to the CraftSmart vaults and pedestals, the boxes are designed to meet a range of fiber, coax, and copper applications within the broadband, telecommunications, and utilities industries, including fiber to the home (FTTH). The FPBs can be used for below-grade cable slack storage in greenbelt areas; undeveloped, wild, or agricultural areas; and similar applications where there is light pedestrian traffic, such as a sidewalk, Clearfield says.
The CraftSmart Fiber Protection Box is available in five different sized boxes:
FPB610 (6 round)FPB912 (9 round)FPB1111 (11)FPB1320 (13)FPB1620 (16).
The body is formed with a High Density Polyethylene (HDPE) Thermoplastic and a solid Thermoplastic lid for strength and stability of the product.
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Premises Networks
Premises networks, mostly computer LANs (local area networks) use fiber optics primarily in the backbone but increasingly to the desk and to connect wireless access points. The LAN backbone often needs longer distances than copper cable (Cat 5/5e/6/6A) can provide and of course, the fiber offers higher bandwidth for future expansion. Fiber's ability to handle network upgrades meant that one fiber type outlived nine generations of copper cables in LANs. A new fiber type (OM3) offers future potential for upgrades while copper continues to struggle with network speed increases.
Until recently large corporate LANs use fiber backbones with copper wire to the desktop. LAN switches and hubs are usually available with fiber optic ports but PCs have interfaces to Ethernet on copper. Inexpensive media converters allow connecting PCs to fiber. Fiber to the desk can be cost effective if properly designed using centralized fiber architecture without local switching in the telecom closet, but many users no longer want to be tethered to a network cable. Desktop computer sales are declining and laptops are the PC of choice for most users, with wireless connections to the network. Generally only high data users like engineers and graphics designers use desktop workstations; everybody else gets a wireless-connected laptop.
More on premises networks and fiber in premises networks.
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What is Waterproof Fiber Pigtail
Waterproof fiber pigtails can be used in harsh environment. It is mainly used in outdoor connection of the optical transmitter. Waterproof fiber pigtail is designed with a stainless steel strengthened waterproof unit and armored outdoor PE jacketed cables.
Waterproof fiber pigtails are widely used in data transmission network, typical types are with 2 fiber cores, 4 fiber cores or 8, 12 fiber cores. By adopting the special structure cables and connectors, these fiber cable assemblies are widely used in CATV and other applications.
LFO provides waterproof pigtail, assemblies fiber pigtail with ST, FC, SC, LC, MU, MTRJ, E2000.... fiber Connector, Single mode and multi mode.
Our waterproof fiber pigtails are with strong PE jacket and waterproof sealed head connectors. Easily and reliable installment, long life, good toughness, and well done in the serious environment are their characteristics. Our waterproof fiber pigtails strictly according to IEC standards, the products feature low insertion loss, high return loss, good interchange ability and repeat push-pull performance, which make them easy to use.
Besides waterproof fiber pigtails, we also offer Fiber Patch Cord, Buddle Fan out Patch cord, MPO Fiber Patch cord, Loopback Fiber Patch cord, Mode Conditioning Cable, 10G Fiber patch cord, Armored fiber patch cord for your different application.
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2013年5月8日星期三
Spirit Communications fans out EoC presence with Overture Networks
Spirit Communications, a CLEC jointly owned by 11 South Carolina independent ILECs, is extending its Ethernet over Copper (EoC) in its North and South Carolina territories.
Leveraging Overture Networks' EoC gear that it purchased from the former Hatteras Networks, the CLEC's Business Elite Ethernet service delivers SMBs 3-10 Mbps speeds.
Having seen what it says is "notable growth throughout the Carolinas," the expansion of its EoC footprint complements the ongoing expansion of its fiber-based Metro Ethernet service for medium and large businesses, including the State of South Carolina.
While it had a strong presence in the medium and large business market with its fiber-based Metro Ethernet solutions, EoC is proving to be a sound solution for the SMB market.
"We have a very good multi-location customer base, but we hadn't really spend a lot of energy on that smaller business customer, and that's the primary focus of the EoC roll out," said Greg Guerra, Spirit executive vice president of Strategy, Product Management and Business Development, in an interview with FierceTelecom.
After launching its Business Elite EoC voice and data bundle last year for SMBs, Guerra added it has seen continued demand for its voice and Internet bundles, including traditional PRI and IP-based SIP trunking.
"We launched our Business Elite EoC service in roughly 10 markets in South Carolina, and that was met with much success so we really started to increase our volume at the low end of the market and so we have since doubled that footprint this year with Overture," he said.
And while its main focus is on serving South Carolina, the CLEC is also expanding the service into North Carolina and Georgia.
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http://blogs.realtown.com/sopto/2013/05/08/what-is-ceramic-ferrule/
Maturity of Metro Ethernet
A comparison of MPLS-based Metro Ethernet against a pure Ethernet MAN: Scalability: In a properly designed Ethernet VLAN network, each switched path can have 4094 single tag VLANs. Some aggregation and core switches can classify traffic by two VLANs using IEEE 802.1ad VLAN stacking, so with such aggregation devices properly placed in the center of a network, end segments and rings of single tag devices can receive only the traffic that they need.
When using MPLS, Ethernet VLANs have local meaning only (like Frame Relay PVC). Same scalability considerations apply to the MAC addresses where in a pure Layer 2 Ethernet MAN all MAC addresses are being shared across the network, although this issue can be managed by smart network design and choosing switches with MAC tables sufficient for the size of network segments.
Resiliency: pure Ethernet network resiliency relies on Spanning Tree Protocols STP, IEEE 802.1w RSTP or IEEE 802.1s MSTP (30 to sub 50ms sec convergence depending on network design) while MPLS-based MANs use mechanisms such as MPLS Fast Reroute to achieve SDH-like (50 msecs) convergence times. Metro Ethernet can also utilise Link aggregation or Resilient Packet Ring where appropriate to add link redundancy and recovery in distribution networks. Some Ethernet vendors' RSTP convergence is also sub-50ms, but this convergence time may vary from vendor to vendor.
Ethernet protection switching is also standardised in (ITU G.8031).Multiprotocol convergence: with the maturity on pseudowires standards (ATM Virtual Leased Line VLL, FR VLL, etc.) an MPLS-based Metro Ethernet can backhaul IP/Ethernet traffic together with virtually any type of traffic coming from customer or other access networks (i.e. ATM aggregation for UMTS or TDM aggregation for GSM), while this could be more challenging in a pure Ethernet scenario.
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http://blogs.realtown.com/sopto/2013/05/08/what-is-ceramic-ferrule/
Rural community fibre optic broadband project
The project involves delivering fibre to the home (FTTH) with cables stretching nearly 300km and connecting 1,452 households.
Fibre optic broadband is being rolled out in urban areas, but internet service providers consider it uneconomical to lay cables in rural areas.
"It's not that rural people don't have options, there's satellite and wireless for example, but the best option is optical fibre and rural people shouldn't be excluded from this," says Mrs Conder.
This is a huge project, which requires a lot of volunteers to make it work. Local farmers dig the trenches using their own machinery and provide up to £2m for materials. Other funding is being raised through the sale of shares.
Digging has only just begun, but the first houses could be connected in a matter of weeks.
Although it is not a requirement, most of those who want a connection have purchased B4RN shares at pound;1 each. Shares are non-transferable, but are withdrawable and only redeemable at par so there is no opportunity for a capital gain. However, they can attract annual interest and offer tax relief.
Installation will cost B4RN around pound;1,000 a household, with about 60% of that accounted for by materials rather than labour.
The cables usually laid by telecommunications companies are beneath roads and other infrastructure, which are not necessarily the most straightforward routes.
This is mostly because it is easier to get permission to lay cables under highways than to seek permission from many different landowners. B4RN is able cut some of these costs by directly negotiating with landowners for wayleaves.
Because many of the landowners are involved in the project and it is not for capital gain, getting their permission is not usually a problem.
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http://soptofiber.blog.fc2.com/blog-entry-101.html
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