Одноэкранированный кабель управления освещением DMX512

Features

Elastic PVC jacket, PE insulation, high-density OFC spiral shielding (85%+ coverage) for reliable DMX512 signal transmission.

Applications / 应用

DMX512 lighting control, stage equipment, KTV and professional show installations.

DMX512灯光控制、舞台设备、KTV与专业演出应用。

DMX512 impedance: what the standard says, and what this data sheet states

DMX512 runs on the RS-485 electrical layer. RS-485 is specified around a 120 Ω nominal characteristic impedance on shielded twisted-pair cable, and impedance comes from the construction — conductor spacing, insulation and shield geometry — not from the copper size alone.

LBS publishes 120 Ω on the double-shielded LBSDMX…-2 models. On this single-shielded model the published data sheet states shield type, braiding, jacket O.D. and temperature range, and does not state an impedance figure. If your project documentation has to carry one, request the value against this model instead of assuming it.

Why the figure matters: DMX termination and daisy-chain rules →

Single-shield or double-shield: what the order has to state

LBS builds two DMX512 families with the same two conductors, the same 6.3 mm matt EPVC jacket and the same -20 °C to +70 °C rating. The difference is the shield, and that is the line the purchase order has to be specific about.

Where the run shares a tray, a truss or a cable path with dimmer racks, LED power supplies or motor drives, the foil layer under the braid is the reason to specify the double-shielded construction. Where the data pair is routed clear of that equipment, the single-shielded spiral is the simpler build and the usual choice.

See the double-shielded LBSDMX144050-2 construction →  ·  All DMX lighting cable

OEM and Customisation for DMX512 Lighting Control Cable

The LBSDMX series can be produced to your specification for branded or project requirements:

• Conductor and construction: 2-core single-shielded DMX512 lighting control cable, braiding 144 / 2 × 0.50, high-density OFC spiral shield at 85%+ coverage
• Jacket: matt EPVC in black, brown or dark green, custom colours on request
• Printing: your brand name, model number and specification printed on the jacket
• Packaging: 100 m rolls, 305 m drums or custom lengths for distributor stocking
• Pre-assembly: XLR male/female termination available on request

Request an OEM quotation for DMX512 lighting control cable →

FAQ

What is the difference between LBSDMX144050 and LBSDMX144050-2?

LBSDMX144050 is single-shielded: a high-density OFC spiral at 85%+ coverage. LBSDMX144050-2 is the double-shielded construction, 100% coverage AL-Foil plus a heavy-duty tinned-copper braid, and it publishes a 120 Ω characteristic impedance. Conductor count, jacket and temperature rating are the same on both.

What characteristic impedance does this cable have?

The published data sheet for the single-shielded family states the shield type, braiding, jacket O.D. and temperature range, and does not state an impedance figure. The double-shielded family states 120 Ω. If your tender or project documentation has to carry an impedance value, ask for it against the specific model rather than assuming one.

Can it be terminated with 5-pin XLR?

Yes — LBS supplies pre-assembled XLR-terminated DMX512 lighting control cable on request. Send the connector gender, pin count, length and quantity with the enquiry.

Is this the same as a microphone cable?

No. Both are shielded twisted constructions, but DMX512 runs on the RS-485 electrical layer, which specifies a 120 Ω nominal characteristic impedance, while microphone cable is built for balanced audio. See DMX cable vs microphone cable.

LBSDMX Single-Shielded Series — Variants

The single-shielded family is built in seven braiding sizes on the same 6.3 mm jacket. Match the braiding to the mechanical duty of the run; the conductor count does not change.

Related Guides

• Stage DMX cable: 1-pair vs 2-pair, single vs double shielded — which construction the environment calls for.
• DMX termination: 120 Ω and daisy-chain rules — why the impedance figure matters at the end of the run.
• DMX cable vs microphone cable — why the two are not interchangeable.