{"product_id":"d-link-dem-220t-sfp-100base-bx-d-bidi-single-fiber-fast-ethernet-optical-transceiver","title":"D-Link DEM-220T SFP 100BASE-BX-D BiDi Single-Fiber Fast Ethernet Optical Transceiver","description":"\u003cdiv\u003e\n\u003ch2\u003eBasic Parameter Table\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eItem\u003c\/th\u003e\n\u003cth align=\"left\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eBrand\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eD-Link\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003ePart Number\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eDEM-220T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eStandard\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eSFP 100BASE-BX-D BiDi Fast Ethernet (100Mbps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eBandwidth\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e100M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eWavelength\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eTX 1550nm \/ RX 1310nm (matching pair TX1310\/RX1550)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eFiber Type\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eG.652 Single-Mode Fiber (SMF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eMax Transmission Distance\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e20km\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eConnector\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eLC Simplex (Single fiber bidirectional transmission)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eForm Factor\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eHot-Pluggable SFP (Mini-GBIC), 3.3V power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eCondition\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eFactory New Sealed Original\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eStock Status\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eIn Stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eDelivery Lead Time\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eTypically within 2 business days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eWarranty Term\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e3-Year Official Global Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eUnit Price\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e$25.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2\u003eCore Product Features\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003col\u003e\n\u003cli\u003eD-Link long-distance bidirectional single-fiber 100M fast Ethernet SFP module, only one single-mode fiber core completes transmit \u0026amp; receive, halves fiber core consumption.\u003c\/li\u003e\n\u003cli\u003eMatching rule: This TX1550\/RX1310 module must pair with DEM-220R (TX1310\/RX1550, 100BASE-BX-U) to realize full-duplex bidirectional communication.\u003c\/li\u003e\n\u003cli\u003eComplies with 100BASE-BX WDM BiDi standard, stable 20km transmission over standard single-mode fiber, suitable for cross-town monitoring and branch networking with insufficient spare fiber cores.\u003c\/li\u003e\n\u003cli\u003eHot-swappable plug-and-play design, compatible with all D-Link SFP switches supporting 100M fiber; no equipment power-off required during replacement for easy maintenance.\u003c\/li\u003e\n\u003cli\u003eModerate optical power budget, strong anti-fiber attenuation and anti-electromagnetic interference capability, supports 24\/7 uninterrupted long-term outdoor unattended monitoring operation.\u003c\/li\u003e\n\u003cli\u003eCost-effective long-distance single-fiber BiDi solution, ideal for security monitoring projects lacking spare fiber cores.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2\u003eTypical Application Scenarios\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003col\u003e\n\u003cli\u003ePoint-to-point interconnection with limited single fiber cores: cross-town campus monitoring, remote factory workshop camera backhaul within 20km single-mode fiber range.\u003c\/li\u003e\n\u003cli\u003eOld network renovation for small branch stores, 100M fast Ethernet private line access when only one spare single fiber is available.\u003c\/li\u003e\n\u003cli\u003eNot applicable for multi-mode fiber; must be matched with opposite wavelength BiDi module for normal communication.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e","brand":"Broadcom LSI","offers":[{"title":"Default Title","offer_id":51223491772556,"sku":"DEM-220T","price":160.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/2410\/8428\/files\/e59117d6-4ebe-454e-91e0-5fc823fa1595.png?v=1783071027","url":"https:\/\/www.qsfp40g.com\/products\/d-link-dem-220t-sfp-100base-bx-d-bidi-single-fiber-fast-ethernet-optical-transceiver","provider":"QSFP40G","version":"1.0","type":"link"}