Analog cables are used to transmit low frequency audio signals, for the connection of microphones, speakers, and many other audio components.
With this cable, primarily digital signals in an AES/EBU, S/P-DIF, and DMX-standard are transmitted, and they are stated with the respective required surge impedances of 50, 75, or 110 Ohm. Please observe the surge impedance required for you peripheral, as stated in our data sheet. Almost all of our digital cables may also be implemented as a high quality analog cable. Digital cables are used to connect scanners, mixing boards, HiFi components, or a number of other studio units.
Basically every 75 Ohm cable is suitable for SDI - as long as a certain length is not exceeded. The deciding factor for the maximum length of this cable is the damping value for the respective frequencies, and those depend on the units used. HD/SDI-signals are used for production purposes, to transmit high resolution video signals (they are e.g. used for consumer HDTV-broadcasting). SDI- and HD-SDI-signals are only intended for production purposes, not for use in the home sector.
Currently the buzz word in the television industry is "HDTV". Scart, cinch, or S-video connections are no longer used for transmission. The new connection systems are called HDTV (or DVI) and YUV. HDMI- and DVI-signals can be encoded with HDCP. The playback units and monitors then have to support HDCP. Alternately YUV can be used for simpler transmission, whereas HDCP-signals are not transmitted. YUV can be transmitted with 3 coax-cables, most often equipped with cinch or BNC-connectors. Caution: A YUV-signal is not compatible with an RBG-signal, despite the fact that the 3 sockets on the units are often identified in red/green/blue.
In case of a fire, this cable will not develop any gases poisonous to humans, for example chloride. This is often a requirement in public buildings. But careful! A halogen-free cable is flammable, and normally a flame-resistant effect is required, known as FRNC (halogen-free and flame-resistant).
Low in fumes
When cables or wiring with insulation or jackets (e.g. made of PVC) containing chlorine burn, dense black fumes will be the result. Halogen-free cables or wiring will only develop approx. a tenth of the fume density in comparison to PVC cables or wiring - they are thus considered to be low in fumes.
These cables comply with the generally valid fire protection guidelines, and they are halogen-free and flame-resistant. This guideline is classified.
EXPLANATION of testing procedures according to VDE 0472 part 804:
FRNC test type A
A cable sample, measuring 60 cm in length, is vertically suspended in the center of a metal box (height 1200 mm x width 300 mm x depth 400 mm). A gas burner with a defined flame is fixed, so that its axis is tilted by 45° in reference to the vertical. The flame hits the cable sample about 100 mm from the lower end. The flame hits, until the conductor or the top most metal shielding emerges, but no longer than 20 seconds. The test is successful if the test sample did not burn, or if the flame that resulted extinguishes itself and the damage caused by the heat of the flame did not reach the upper end of the test sample.
FRNC test type B
A cable sample, measuring 60 cm in length, is vertically suspended in the center of the metal box (height 1200 mm x width 300 mm x depth 400 mm). A gas burner with a defined flame is fixed, so that its axis is tilted by 45° in reference to the vertical. The flame hits the cable sample about 100 mm from the lower end for about 1-2 minutes, depending on the weight of the sample. The test is successful, if the test sample did not burn, or if the flame that resulted extinguishes itself and the damage caused by the heat of the flame did not reach the upper end of the test sample.
FRNC test type C
Cable samples, each measuring 360 cm in length, are fastened side by side to a ladder-like test rack. This test rack is inserted vertically into a kiln, at a distance of 150 mm to the back of the kiln. The cable samples are reached by the flame at a height of approx. 60 cm, at a temperature of approx. 800°C, by a burner of approx. 250 mm in width. The exposure time is 20 minutes. The test is successful if the flame that resulted extinguishes itself and the damage caused by the heat of the flame did not reach the upper end of the test sample.
A PUR jacket is extremely tough, especially resistant to the cold (-40 °C), and still easy to wind even in minimal temperatures. At SOMMER CABLE we usually give our cables a halogen-free PUR jacket, which is, part from the advantages mentioned above, very tolerant to heat and sunlight. This jacket is a little more expensive than the standard PUR mixture, although in the meantime it is required and preferred by almost all broadcasting companies and professional installers.
This seemingly unimpressive identification code stands for an important description of continued function in case of fire.
This fire protection class is based on DIN VDE 0815/DIN VDE 4102 (Part 12), representing improved performance in case of a fire when compared to e.g. common FRNC-cables. E30 guarantees functionality for 30 minutes in compliance with this norm.
Please note that it is not possible to manufacture all cable specifications accord. to E30 or even E90, because the insulation on some cables does not comply with the norm stated above.
This fire protection class is based on DIN VDE 0815/DIN VDE 4102 (Part 12), representing improved performance in case of a fire when compared to e.g. common FRNC-cables. E90 guarantees functionality for 90 minutes in compliance with this norm.
Approbation E90 is first and foremost required for power and fire alarm cables. This norm rarely is applied to audio multipair cable connections, because the insulation walls on cables with small diameters are too thin.
This cable has a special jacket mixture made of PE, suitable for in-ground installation. But note that a PE-jacket does not automatically make a cable suitable for in-ground installation, because this type of cable has to be specially designed to withstand the pressures under ground.
However, all cables with this symbol are suitable for in-ground installation.
All cables identified with AQUA are watertight up to a water pressure of 20 bar. The special PUR-jacket minimizes water and other fluids from penetrating and prevents longitudal dispersion in case of cable damages. The watertight jacket is also robust enough to handle the installation of high-pressure end sockets inevitably needed to prevent moisture from penetrating.
Penetrating water not only speeds up the oxidation process, but will, due to the capillary action, alter the damping and other relevant electrical values. Here video cables and other coaxial cable types, e.g. used on monitoring cameras or monitors, are especially jeopardized.
Starting at lengths of 2,000 m almost all our cables can be manufactured with this jacket. Prices and delivery times are available upon request.
Caution: Watertight does not mean "oceanic water tight" or "salt water tight"!
SOMMER CABLE mostly uses oxygenfree copper (OFC) or copper low in oxygen. For your information: copper has a specific resistance of 0.0178 per meter, at a diameter of 1 mm². The purer the metal, the smoother it will be (high bending cycles!), and the more consistent this value will remain over the years.
The Pur Master Blend has a jacket mixture based on a polyurethane basis, especially developed for SOMMER CABLE. The jacket on the PMB is resistant to notching and cold temperatures (-40 °C), and free of adhesion with a surface that is easy to clean. PMB offers the toughness and temperature resistance of PUR and the flexibility of PVC. PMB is not halogen-free or flame-retardant.
A granular mix on a PVC-basis, also exclusively developed for SOMMER CABLE. S-PVC is a super soft PVC with the "feeling" and flexibility of a soft rubber hose cable, but with significantly more resistance to notching and cold temperatures than most standard PVC-jackets.
While most jacket mixtures already start tearing in mobile application of -10 °C, the S-PVC withstands temperatures of -30 °C.
This is a special procedure used by SOMMER CABLE to compensate for the typical bounce created automatically during stranding of multipair cables. Simplified this means: To manufacture a torsion-free cable expensive and complex stranding machines are required to counter-strand outer pairs and core.
The result being that a multipair cable can be wound a thousand times or be twisted into an "eight" without knotting or buckling.
All multipair cables identified with the X-TORSION logo are suitable for extremely high bending cycles (e.g. ground cables) and are recommended for professional broadcasting and event technology.
The RoHS-Guidelines (Restriction of certain Hazardous Substances) issued by the European Union (EU) regulate the restricted use of hazardous substances. Since July 2006 the EU-Guideline 2002/95/EC has been prohibiting the use of cadmium (Cd), quicksilver (Hg), hexavalent chrome (Cr (VI)), polybromated biphenyl (PBBs), and polybromated diphenylether (PBDEs) as well as lead (Pb) in electrical and electronic units.
SOMMER CABLE has already converted all their cable, premade cable, and system production to comply with EU-Guidelines 2002/95/EC (RoHS) and 2002/96/EC (WEEE) prior to 2006.
For electro-technical products and products governed by the Unit and Product Safety Law (GPSG)
The VDE-symbol verifies conformity with the VDE-guidelines or European and International Harmonized Norms and confirms compliance with the protective requirements stated in the respective guidelines. The VDE-symbol stands for product safety regarding electrical, mechanical, thermal, toxic, radiological, and other dangers.
(Waste Electrical and Electronic Equipment - EU-Guideline)
A guideline to reduce electronic waste from discarded electrical and electronic units. The goal is to avoid, reduce, and dispose the steadily increasing amount of electronic waste in an environmentally safe manner by placing additional responsibility for the products with the manufacturers.