Where Can I Buy A Firewire Cable
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Sort of as an aside, but perhaps the optimal thing to do is to buy a firewire 800 cable, and then buy one of the little firewire 800-400 adapters for one end. That way you would have a cable for the currently used Firewire 800 standard, and just use the adapter for connecting to FireWire 400 ports as needed (the little cable-end adapters from Sonnet, Moshi or others are in the $15-$20 range).
Synchrotech carries a wide range of high quality FireWire cables for both IEEE 1394a FireWire 400 and IEEE 1394b FireWire 800 applications. In addition to our own economical line of FireWire cables, we carry those from manufacturers of the most exacting standards, including Datavideo and Unibrain.
Can my DV camera be connected via laptop's USB Already bought Firewire to USB cable, but device is not recognised. Have downloaded Legacy drivers, installed, but 1394 drivers are not listed in Devices Manager. Same on Win 7 and Win 10. Thanks!
As i understood, i do not only need a cable (witch i own) and Legacy drivers (witch i have installed), but i also need some piece of hardware (PCI or Firewire cars). It might be a solution for a tower PC, but i am not sure if it is realistic for my new laptop (which, by the way, i have chosen mostly for video editing and works fine with my newer HD camcorder - USB connected).
FireWire Extension CableThis is a 1394b FireWire 800 Extension Cable that has a 9pin FireWire Male on one side, and a 6pin FireWire Female on the other. This hard to find cable is great for those special applications when using both 1394a and 1394b on one computer.Works great in tight spotsThis FireWire Extension cable has been used for both industrial applications, as well as everyday users to have their computer too close to the wall to plug in their FireWire drives.
The most important factor considered on any Firewire topology is that sufficient power is provided to the devices guaranteeing stability on the bus.In long distance solutions, there may be significant power loss across the power as well as the data lines.Thus it is strongly recommended that the firewire adapter on the PC side is fed with additional power internally through its power connector.
With the 20m (65 ft) version of the Long cable you will be able to operate reliably up to 3 industrial cameras simultaneously without any additional power (provided the firewire adapter in the PC is powered internally though its additional power input).
The military continues to upgrade aircraft with modern avionics. Gore offers a durable copper-based IEEE 1394b FireWire solution that reliably carries high-fidelity signals and transfers high-speed data in extreme conditions. Our small-scale quadrax cables save weight, endure continuous flexing and provide long-term product life than other quad designs.
A premier solution for copper-based IEEE 1394b FireWire data links, W. L. Gore & Associates offers a version of quadrax cables called GORE FireWire Cables for Aircraft. Designed to withstand extreme aircraft conditions without damage over the life of the system, they transmit uninterrupted, high-fidelity signals with flexure for interconnect solutions up to 30 m (100 ft.) at S400 data transfer rates.
Using a diamond-shaped eye mask test with minimum receiver sensitivity specified by IEEE 1394b, we evaluated the signal integrity of our cable before and during flexure. As expected, it passed the eye mark with plenty of margin, showing that greater transmission length is possible. Even after we wrapped it around a mandrel 20 times, our cable still maintained reliable signal integrity.
Even though these cables are smaller in scale, they still provide a protective barrier against tough maintenance and flight conditions thanks to our engineered fluoropolymers that add strength and a double-braided shield that safeguards wires.
Our cables can also be terminated with a variety of leading high speed aerospace and defense connector systems and backshells, like ARINC and MIL-STD-38999 with size 8 and 22D contacts. If you have any questions or to discuss your specific application needs, contact a Gore representative today.
W. L. Gore & Associates (Gore) announced a new higher-frequency 40Ghz option for its GORE-FLIGHT Microwave Assemblies. The new option will help EW and C5ISR users and customers who want to transport electrical signals reliably with minimal size, weight and power. The newest capability for GORE-FLIGHT Microwave Assemblies will allow for higher frequency applications that will offer low loss, high integrity and greater longevity cables.
The copper cable used in its most common implementation can be up to 4.5 metres (15 ft) long. Power and data is carried over this cable, allowing devices with moderate power requirements to operate without a separate power supply. FireWire is also available in Cat 5 and optical fiber versions.
The 1394 interface is comparable to USB. USB was developed subsequently and gained much greater market share. USB requires a host controller whereas IEEE 1394 is cooperatively managed by the connected devices.[2]
Cable length is limited to 4.5 metres (14.8 ft), although up to 16 cables can be daisy chained using active repeaters; external hubs or internal hubs are often present in FireWire equipment. The S400 standard limits any configuration's maximum cable length to 72 metres (236 ft). The 6-conductor connector is commonly found on desktop computers and can supply the connected device with power.
IEEE 1394b-2002[26] introduced FireWire 800 (Apple's name for the 9-conductor S800 bilingual version of the IEEE 1394b standard). This specification and corresponding products allow a transfer rate of 786.432 Mbit/s full-duplex via a new encoding scheme termed beta mode. It is backwards compatible with the slower rates and 6-conductor alpha connectors of FireWire 400. However, while the IEEE 1394a and IEEE 1394b standards are compatible, FireWire 800's connector, referred to as a beta connector, is different from FireWire 400's alpha connectors, making legacy cables incompatible. A bilingual cable allows the connection of older devices to the newer port. In 2003, Apple was the first to introduce commercial products with the new connector.
The full IEEE 1394b specification supports data rates up to 3200 Mbit/s (i.e., 400 MB/s) over beta-mode or optical connections up to 100 metres (330 ft) in length. Standard Category 5e unshielded twisted pair supports 100 metres (330 ft) at S100. The original 1394 and 1394a standards used data/strobe (D/S) encoding (renamed to alpha mode) with the cables, while 1394b added a data encoding scheme called 8b/10b referred to as beta mode.
IEEE 1394c-2006 was published on June 8, 2007.[29] It provided a major technical improvement, namely new port specification that provides 800 Mbit/s over the same 8P8C (Ethernet) connectors with Category 5e cable, which is specified in IEEE 802.3 clause 40 (gigabit Ethernet over copper twisted pair) along with a corresponding automatic negotiation that allows the same port to connect to either IEEE Std 1394 or IEEE 802.3 (Ethernet) devices.
In Windows XP, a degradation in performance of 1394 devices may have occurred with installation of Service Pack 2. This was resolved in Hotfix 885222[42] and in SP3. Some FireWire hardware manufacturers also provide custom device drivers that replace the Microsoft OHCI host adapter driver stack, enabling S800-capable devices to run at full 800 Mbit/s transfer rates on older versions of Windows (XP SP2 w/o Hotfix 885222) and Windows Vista. At the time of its release, Microsoft Windows Vista supported only 1394a, with assurances that 1394b support would come in the next service pack.[43] Service Pack 1 for Microsoft Windows Vista has since been released, however the addition of 1394b support is not mentioned anywhere in the release documentation.[44][45][46] The 1394 bus driver was rewritten for Windows 7 to provide support for higher speeds and alternative media.[47]
Under FCC Code 47 CFR 76.640 section 4, subsections 1 and 2, Cable TV providers (in the US, with digital systems) must, upon request of a customer, have provided a high-definition capable cable box with a functional FireWire interface. This applied only to customers leasing high-definition capable cable boxes from their cable provider after April 1, 2004.[50]The interface can be used to display or record Cable TV, including HDTV programming.[51] In June 2010, the FCC issued an order that permitted set-top boxes to include IP-based interfaces in place of FireWire.[52][53]
While both technologies provide similar end results, there are fundamental differences between USB and FireWire. USB requires the presence of a host controller, typically a PC, which connects point to point with the USB device. This allows for simpler (and lower-cost) peripherals, at the cost of lowered functionality of the bus. Intelligent hubs are required to connect multiple USB devices to a single USB host controller. By contrast, FireWire is essentially a peer-to-peer network (where any device may serve as the host or client), allowing multiple devices to be connected on one bus.[54]
The FireWire host interface supports DMA and memory-mapped devices, allowing data transfers to happen without loading the host CPU with interrupts and buffer-copy operations.[10][55] Additionally, FireWire features two data buses for each segment of the bus network, whereas, until USB 3.0, USB featured only one. This means that FireWire can have communication in both directions at the same time (full-duplex), whereas USB communication prior to 3.0 can only occur in one direction at any one time (half-duplex).[citation needed]
FireWire can be used for ad hoc (terminals only, no routers except where a FireWire hub is used) computer networks. Specifically, RFC 2734 specifies how to run IPv4 over the FireWire interface, and RFC 3146 specifies how to run IPv6. 59ce067264
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