{"product_id":"4-channel-industrial-contact-closure-media-converter-up-to-80km-bidi-transmission","title":"4-Channel Industrial Contact Closure Media Converter Up To 80km BiDi Transmission","description":"\u003cdiv\u003eIntroduction\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for mission-critical environments, the IM610-4K↑↓WT\/R  is a rugged 4-channel contact closure transceiver that converts dry-contact or logic-level signals into optical pulses for reliable long-haul transmission.\u003c\/li\u003e\n\u003cli\u003eLeveraging WDM technology, it sends and receives data over a single strand of fiber, effectively doubling your infrastructure’s capacity without laying extra cables.\u003c\/li\u003e\n\u003cli\u003eWhether you are monitoring perimeter fences, controlling remote relays, or aggregating alarm panels, this unit delivers galvanic isolation that kills ground loops and rejects EMI\/RFI – common plagues in industrial sites.\u003c\/li\u003e\n\u003cli\u003eWith support for both single-mode and multimode fibers, it adapts to new installations and legacy networks alike, while the wide 12–52V DC input ensures stable operation even under unstable grid conditions.\u003c\/li\u003e\n\u003cli\u003eBuilt for the harshest weather, it survives from -40°C to +75°C, making it a true companion for outdoor cabinets, roadside boxes, and unmanned substations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eKey Features\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e4 Independent Contact-Closure Channels – Each channel can be configured as input or output, supporting TTL, RS-232\/422\/485, passive switches, or relay dry contacts for maximum flexibility.\u003c\/li\u003e\n\u003cli\u003eSingle-Fiber BiDi Transmission – Uses 1310nm\/1550nm WDM to exchange signals on one fiber, saving valuable cable resources and simplifying network topology.\u003c\/li\u003e\n\u003cli\u003eExtreme Optical Budget – With a receiver sensitivity of -30dBm and output power up to 3dBm, it achieves a link loss margin of 30dB, enabling spans up to 80km on 9\/125µm single-mode fiber.\u003c\/li\u003e\n\u003cli\u003eHardened Industrial Design – DIN-rail mountable, fanless, and protected against lightning surges; operates flawlessly in high-vibration, high-humidity (0–95% non-condensing) environments.\u003c\/li\u003e\n\u003cli\u003ePlug-and-Play SFP Interface – The modular SFP slot allows on-the-fly wavelength or distance changes without replacing the main unit, reducing downtime and upgrade costs.\u003c\/li\u003e\n\u003cli\u003eNo EMI\/RFI Interference – Fiber-optic isolation completely eliminates ground potential differences and electrical noise, ensuring error-free data for sensitive measurement and control systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eApplication\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThis transceiver excels in scenarios where electrical isolation and long reach are non-negotiable.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eIn highway toll plazas and tunnel supervision, it carries alarm signals from emergency phones and fire detectors to the central control room over dozens of kilometers.\u003c\/li\u003e\n\u003cli\u003eFor city-wide surveillance networks, it connects remote PTZ cameras and gate sensors to backbone switches, removing the need for repeaters or signal boosters.\u003c\/li\u003e\n\u003cli\u003eIndustrial plants deploy it to monitor tank levels, conveyor belt status, and warehouse intrusion detectors, while power utilities use it to transmit breaker trip signals between substations and dispatch centers.\u003c\/li\u003e\n\u003cli\u003eMilitary and defense projects rely on its tamper-proof optical path for perimeter intrusion detection and border sensor arrays.\u003c\/li\u003e\n\u003cli\u003eEven in large sports arenas or broadcast studios, it serves as a silent workhorse for distributing contact-closure cues – starting video recorders, triggering lighting cues, or switching audio matrices – all without introducing ground buzz or latency.\u003c\/li\u003e\n\u003cli\u003eFor system integrators, its flexible channel mapping and hot-swappable optics make it the go-to building block for hybrid fiber-copper control systems, whether retrofitting old sites or designing greenfield SCADA infrastructures.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OLYCOM","offers":[{"title":"Default Title","offer_id":54560179257623,"sku":null,"price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/9674\/2935\/files\/13_4a5a690a-f45e-4177-a744-842ce26e7873.jpg?v=1785297134","url":"https:\/\/olycom.cn\/ja\/products\/4-channel-industrial-contact-closure-media-converter-up-to-80km-bidi-transmission","provider":"OLYCOM","version":"1.0","type":"link"}