{"product_id":"hollyland-cascade-2-4-wire-converter-bi-directional-convertion","title":"Hollyland Cascade 2\/4 Wire Converter. Bi-directional Convertion","description":"\u003cdiv class=\"markdown markdown-main-panel tutor-markdown-rendering enable-luminous-fast-follows stronger enable-updated-hr-color\" id=\"model-response-message-contentr_62287c70b92eff5f\" dir=\"ltr\"\u003e\n\u003cp\u003eThe \u003cb\u003eHollyland 2\/4 Wire Converter (Model: HL-WC01)\u003c\/b\u003e is a rugged, compact system utility designed to bridge legacy wired party-line intercom hardware with modern 4-wire digital communications.\u003c\/p\u003e\n\u003cp\u003eIn broad television, theatre, and industrial event grids, matching different audio standards can cause level drops or feedback loops. This bidirectional converter handles the cross-translation automatically, maintaining pristine wideband audio quality in both directions.\u003c\/p\u003e\n\u003ch3\u003eUnderstanding the Conversion\u003c\/h3\u003e\n\u003cp\u003eWired intercom infrastructures generally fall into two categories. This converter acts as an active, real-time translator between them:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e2-Wire Systems (Party-Line):\u003c\/b\u003e Used by brands like Clear-Com, RTS, or Altair. They transmit power and bidirectional (two-way) talk\/listen audio down a single pair of wires within a standard 3-pin XLR line.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e4-Wire Systems (Matrix\/Digital):\u003c\/b\u003e Used by high-end digital matrix platforms, broadcast consoles, and wireless hubs (like the \u003cb\u003eHollyland Solidcom C1 \/ C1 Pro Hub\u003c\/b\u003e or \u003cb\u003eSyscom 1000T\u003c\/b\u003e). These split incoming and outgoing audio lines onto entirely independent pairs of pins (one path exclusively for input, one exclusively for output).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCore Performance Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIntelligent Auto-Nulling Circuitry:\u003c\/b\u003e The biggest hurdle in 2-to-4 wire conversion is line echo caused by impedance mismatches. The converter features a dedicated, front-panel \u003cb\u003eAUTO NULL\u003c\/b\u003e button. With one click, the device generates an internal test tone, analyzes the connected line impedance, and drops echo levels out of the track automatically.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePower-Free Party-Line Drawing:\u003c\/b\u003e The converter can extract its operational power directly from an active 12V to 36V DC 2-wire intercom line. You do not need to hunt for an external wall outlet on a busy production floor. \u003ci\u003e(Note: If the 2-wire side doesn't provide power, it can also run off standard USB-C bus power).\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDistance Wire-Length Compensation:\u003c\/b\u003e Built with internal DIP switches on the chassis to account for high-frequency signal roll-off over long cable runs. Users can toggle distance compensation steps to optimize audio performance for cable lengths spanning \u003cb\u003eup to 656 feet (200 meters)\u003c\/b\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIndependent ±6 dB Gain Trimming:\u003c\/b\u003e Features independent physical gain adjustment switches for both the 4-Wire Input and 4-Wire Output stages. This allows technical directors to balance varying audio volumes between different manufacturer systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e6-Segment Real-Time LED Level Meters:\u003c\/b\u003e Dual LED level strips provide instant, scannable visual feedback for signal inputs and outputs, flashing green for optimal paths and shifting to red to warn of audio clipping.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Technical Specifications Matrix\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature Component\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eHollyland 2\/4 Wire Converter (HL-WC01) Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eBidirectional Connectivity\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2-Wire (3-pin XLR Male \u0026amp; Female) | 4-Wire (3-pin XLR Male \u0026amp; Female)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eAudio Frequency Response\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100 Hz to 5 kHz (Optimized for crystal-clear vocal range)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eTotal Harmonic Distortion\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLess than 1% at 1 kHz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eSignal-to-Noise Ratio (SNR)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026gt;55 dB (at 0 dBu baseline input)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eMaximum Audio Input Level\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2-Wire: \u0026gt;6 dBu | 4-Wire: \u0026gt;18 dBu\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eTermination Resistor Grid\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIntegrated Switchable 220Ω Internal Termination Resistor\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eChassis Form Factor Space\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1\/4 RU Size (Up to 4 units can be mounted in a standard 1U rack tray)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eTotal Unit Weight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 520 grams (18.3 oz)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eThe Auto-Nulling Status Indicator\u003c\/h3\u003e\n\u003cp\u003eWhen initializing a system, click the physical \u003cb\u003eAUTO-NULL\u003c\/b\u003e button on the front face. The integrated LED color ring provides real-time diagnostic feedback:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCyan (Blue-Green):\u003c\/b\u003e Idle state \/ calibration has not been performed yet.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eGreen:\u003c\/b\u003e Calibration successful. Echo paths have been calculated and suppressed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRed:\u003c\/b\u003e Calibration failed. The device detected active crosstalk, a terminal short, or open open-ended cables. Check your XLR connectors and re-run.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cb\u003eEcosystem Integration Best Practice:\u003c\/b\u003e If you are hooking this up to cascade a \u003cb\u003eHollyland Solidcom C1 \/ C1 Pro Hub\u003c\/b\u003e with an existing wired Clear-Com setup, wire the 4-wire ports of this converter to the 4W RJ45\/XLR terminal on the Solidcom Hub, and the 2-wire side to your party-line. Turn off all microphones on the beltpacks before hitting \u003cb\u003eAUTO-NULL\u003c\/b\u003e, as background room ambient noise bleed can distort the accuracy of the acoustic echo measurement.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e","brand":"Hollyland","offers":[{"title":"Default Title","offer_id":52073249571118,"sku":"HOL-CAS2\/4-CON","price":11533.35,"currency_code":"ZAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0157\/2910\/files\/1-16.png?v=1782121188","url":"https:\/\/shopvisuals.tv\/products\/hollyland-cascade-2-4-wire-converter-bi-directional-convertion","provider":"ShopVisuals.tv","version":"1.0","type":"link"}