单屏蔽两芯带屏蔽 DMX512 灯光控制线，适用于舞台灯光信号传输，编织 128 / 2 × 0.50，6.3mm 哑光 EPVC 护套，高密度无氧铜螺旋屏蔽（覆盖率 85% 以上）。
| 型号 | LBSDMX128050 |
|---|---|
| 导体数 | 2 |
| 外层颜色 | Black / brown / dark green optional |
| 标称外径 | 6.3 mm |
| 外层护套 | EPVC MATT |
| 屏蔽结构 | Single shield — high-density OFC spiral, 85%+ coverage |
| 编织网数 | 128 / 2 × 0.50 |
| 适用温度 | -20°C to 70°C |
Elastic PVC jacket, PE insulation, high-density OFC spiral shielding (85%+ coverage) for reliable DMX512 signal transmission.
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 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 →
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.
| Construction | Shield | Impedance on the published data sheet | Model example |
|---|---|---|---|
| Single-shielded (this page) | High-density OFC spiral, 85%+ coverage | Not stated | LBSDMX128050 |
| Double-shielded | 100% coverage AL-Foil plus heavy-duty tinned-copper braid | 120 Ω | LBSDMX128050-2 |
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 LBSDMX128050-2 construction → · All DMX lighting cable
The LBSDMX series can be produced to your specification for branded or project requirements:
Request an OEM quotation for DMX512 lighting control cable →
LBSDMX128050 is single-shielded: a high-density OFC spiral at 85%+ coverage. LBSDMX128050-2 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.
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.
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.
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.
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.
| Model | Braiding (cores × conductor) | Shield | Product page |
|---|---|---|---|
| LBSDMX64025 | 64 / 2 × 0.25 | Single shield — high-density OFC spiral, 85%+ coverage | View |
| LBSDMX96035 | 96 / 2 × 0.35 | Single shield — high-density OFC spiral, 85%+ coverage | View |
| LBSDMX96050 | 96 / 2 × 0.50 | Single shield — high-density OFC spiral, 85%+ coverage | View |
| LBSDMX128035 | 128 / 2 × 0.35 | Single shield — high-density OFC spiral, 85%+ coverage | View |
| LBSDMX128050 | 128 / 2 × 0.50 | Single shield — high-density OFC spiral, 85%+ coverage | Current page |
| LBSDMX144050 | 144 / 2 × 0.50 | Single shield — high-density OFC spiral, 85%+ coverage | View |
| LBSDMX168050 | 168 / 2 × 0.50 | Single shield — high-density OFC spiral, 85%+ coverage | View |
相关 DMX512 信号线规格
以下型号与本页产品采用同一柔性屏蔽 DMX512 信号线结构——高密度无氧铜螺旋屏蔽与 6.3 mm 哑光 EPVC 护套，用于舞台灯光——仅为相邻的编织密度（64 至 168）与导体截面积（2 × 0.25 mm² 至 2 × 0.50 mm²）规格。
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