{"id":362,"date":"2023-05-29T06:17:26","date_gmt":"2023-05-29T06:17:26","guid":{"rendered":"https:\/\/tplinksg.com\/?post_type=product&p=362"},"modified":"2025-09-05T09:00:39","modified_gmt":"2025-09-05T01:00:39","slug":"tp-link-1000base-bx-wdm-bi-directional-sfp-module-tl-sm321b","status":"publish","type":"product","link":"https:\/\/tplinksg.com\/index.php\/product\/tp-link-1000base-bx-wdm-bi-directional-sfp-module-tl-sm321b\/","title":{"rendered":"TP-Link 1000BASE BX WDM BI DIRECTIONAL SFP MODULE TL SM321B"},"content":{"rendered":"

What This Product Does<\/h3>\n

TP-Link?s TL-SM321B adopts the latest standard 1000Base-BX, transmitting over one single-mode fiber with one different wavelength going in each direction. Paired with TL-SM321A, You can extend the network distance up to 20Km with TP-Link?s routers, switches and media converters for reliable high-speed long-distance communication.<\/p>\n

 <\/p>\n

Specification:<\/strong><\/p>\n\n\n\n\n\n
PACKAGE CONTENTS<\/a><\/th>\n<\/tr>\n<\/thead>\n
Package Contents<\/th>\n? SFP Module TL-SM321B
\n? Installation Guide<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
MEDIA CONVERTER & MODULE<\/a><\/th>\n<\/tr>\n<\/thead>\n
Standards and Protocols<\/th>\nIEEE 802.3z, TCP\/IP<\/td>\n<\/tr>\n
Wave Length<\/th>\nTX: 1310 nm
\nRX: 1550 nm<\/td>\n<\/tr>\n
Power Supply<\/th>\n3.3 V<\/td>\n<\/tr>\n
Safety & Emission<\/th>\nFCC, CE<\/td>\n<\/tr>\n
Cabel<\/th>\nSingle-Mode Fiber<\/td>\n<\/tr>\n
Fiber Type<\/th>\n9\/125 ?m Single-Mode<\/td>\n<\/tr>\n
Max. Cable Length<\/th>\n20 KM<\/td>\n<\/tr>\n
Data Rate<\/th>\n1.25 Gbps<\/td>\n<\/tr>\n
Port Type<\/th>\nLC Simplex<\/td>\n<\/tr>\n
Environment<\/th>\nOperating Temperature: 0?70 ?C (32?158 ?F)
\nStorage Temperature: -40?85 ?C ( -40?185 ?F)
\nOperating Humidity: 10?90% RH, Non-Condensing
\nStorage Humidity: 5?90% RH, Non-Condensing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"
\n

1000Base-BX WDM Bi-Directional SFP Module<\/h1>\n<\/div>\n
\n
    \n
  • Up to 20 km transmission distance with?9\/125 ?m SMF (Single-Mode Fiber)<\/li>\n
  • Bidirectional WDM communication on a single fiber<\/li>\n
  • Compatible with Small Form Pluggable Multi-Source Agreement (SFP-MSA)<\/li>\n
  • Supports Digital Diagnostic Monitoring (DDM)<\/li>\n
  • Hot-swappable module design<\/li>\n
  • Work with TL-SM321A?as a pair<\/li>\n<\/ul>\n<\/div>\n","protected":false},"featured_media":816,"template":"","meta":[],"product_brand":[],"product_cat":[26],"product_tag":[],"class_list":{"0":"post-362","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-accessories","7":"thunk-woo-product-list","8":"opn-qv-enable","9":"top-store-woo-hover-none","10":"top-store-single-product-tab-horizontal","11":"top-store-shadow-","12":"top-store-shadow-hover-","14":"first","15":"outofstock","16":"taxable","17":"shipping-taxable","18":"purchasable","19":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/tplinksg.com\/index.php\/wp-json\/wp\/v2\/product\/362","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tplinksg.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/tplinksg.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tplinksg.com\/index.php\/wp-json\/wp\/v2\/media\/816"}],"wp:attachment":[{"href":"https:\/\/tplinksg.com\/index.php\/wp-json\/wp\/v2\/media?parent=362"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/tplinksg.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=362"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/tplinksg.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=362"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/tplinksg.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=362"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}