Lightware SW4-OPT-TX240RAK Multimode Single Fiber Extender with Bi-directional RS-232 - 91510027

Product Overview

The Lightware SW4-OPT-TX240RAK is a multimode single-fiber HDMI extender transmitter that carries HDMI 1.4, DVI 1.0, and bidirectional RS-232 over one SC multimode fiber cable at distances up to 2,500 m. Designed for large venues, broadcast facilities, and installations where copper signal quality degrades over long runs, it delivers zero-frame-latency video transmission with full HDCP compliance and galvanic isolation between source and display. It pairs with Lightware OPT series receivers and is also compatible with MX and 25G modular matrix frames via optical input boards.

Product Description

The SW4-OPT-TX240RAK accepts video from DVI, two HDMI, and one DisplayPort input, selecting the active source for transmission over a single SC fiber connection — eliminating the need for a second fiber or copper return path for HDCP handshaking. The CWDM six-channel laser architecture separates high-speed and low-speed lanes on the same fiber core, handling the bidirectional communication required for HDCP and RS-232 pass-through simultaneously.

A local HDMI output mirrors the transmitted signal for source monitoring without signal splitting. Pixel Accurate Reclocking eliminates jitter accumulated from low-quality cables or daisy-chained devices, critical in 3D and broadcast-grade applications where audio is processed on a separate path requiring frame-accurate timing. Audio embedding is handled from a 3.5 mm jack or 5-pole balanced Phoenix connector, with volume adjustable from -95.625 dB to 0 dB. GPIO ports (8-pole Phoenix) and RS-232 pass-through (bidirectional, up to 57.6 kBaud) provide full control integration without a separate control path. The unit operates standalone or rack-mounted on a shelf and integrates directly into Lightware MX hybrid matrix systems via MX-HDMI-OPT optical boards.

Key Features

• Single-fiber HDMI extension — transmits video, audio, HDCP handshaking, and RS-232 over one SC multimode fiber; no second fiber required
• Up to 2,500 m distance — 2,500 m on OM4 fiber at 1080p@60Hz/24bpp; reduced distances for higher resolutions and color depths
• 4x multi-format video input — DVI-D, 2x HDMI, and DisplayPort sources selectable at the transmitter
• Zero frame latency — optical conversion adds no frame delay, essential for 3D and synchronized audio/video systems
• Pixel Accurate Reclocking — eliminates jitter and skew from source or upstream signal degradation
• Galvanic isolation — breaks ground loops between source and display endpoints; prevents hum and interference
• Bidirectional RS-232 — pass-through and control, up to 57.6 kBaud, over the same fiber link
• Advanced EDID Management — 15 user-programmable EDID slots plus factory presets; forces fixed output resolution from any source
• Audio embedding — 3.5 mm jack and 5-pole balanced Phoenix input; volume -95.625 to 0 dB in 0.375 dB steps
• GPIO control ports — 8-pole Phoenix connector for automation and room control integration
• USB KVM extension — HID device extension over fiber for keyboard/mouse control at remote endpoint
• MX matrix compatible — connects directly to MX-HDMI-OPT optical input boards in Lightware modular frames

Typical Applications

• Long-distance HDMI or DVI distribution in large venues, sports facilities, and campuses
• Broadcast studios requiring zero-latency signal transport with galvanic isolation
• Conference rooms on separate floors or buildings connected by installed fiber infrastructure
• Yacht and marine AV installations where interference immunity and isolation are required
• Home cinema or estate installations with existing multimode fiber between equipment rooms and displays
• Lightware MX modular matrix systems requiring optical input sources

Technical Specifications

Competitor Comparison

Frequently Asked Questions

Does single-fiber operation compromise HDCP compliance?

No. Lightware's CWDM laser architecture uses separate wavelength channels on the same fiber core for bidirectional communication, allowing full HDCP handshaking without a second fiber or copper return path.

What receiver is required on the far end?

In standalone applications, the SW4-OPT-TX240RAK pairs with the Lightware HDMI-OPT-RX200R. It also connects to compatible OPT series receiver modules installed in MX or 25G hybrid matrix frames via MX-HDMI-OPT optical input boards.

Can I use existing installed OM1 fiber?

Yes, but distances are reduced. OM1 (62.5/125) supports up to 250 m at 1080p@60Hz/24bpp. For higher resolutions or longer runs, OM3 or OM4 50/125 fiber is required. Verify fiber condition and connector cleanliness before installation.

Is there a local monitoring output during transmission?

Yes. A dedicated HDMI output mirrors the transmitted signal, allowing source monitoring at the transmitter location without signal splitting or additional hardware.

How is audio embedded if the source has no analog output?

The unit embeds HDMI-carried audio from the selected HDMI or DisplayPort source directly into the fiber stream. The analog audio inputs (3.5 mm jack or 5-pole Phoenix) are an additional path to replace or supplement embedded HDMI audio.

Can this unit be rack mounted?

Yes, using a Lightware rack shelf or bracket accessory. The unit can also be used standalone on a desk or shelf. It is not a 1U rackmount chassis by itself.

Where can I order with technical pre-sales support?

Available at creationnetworks.net. Contact the team for fiber link budget calculations, receiver recommendations, and MX matrix integration planning.