{"id":873,"date":"2026-02-25T22:16:32","date_gmt":"2026-02-25T22:16:32","guid":{"rendered":"https:\/\/demo.accurays.com\/ustransceivers\/product\/ust-1000base-dwdm-sfp-transceiver-for-cisco-dwdm-sfp-3977-taa-compliant\/"},"modified":"2026-02-25T22:16:32","modified_gmt":"2026-02-25T22:16:32","slug":"ust-1000base-dwdm-sfp-transceiver-for-cisco-dwdm-sfp-3977-taa-compliant","status":"publish","type":"product","link":"https:\/\/demo.accurays.com\/ustransceivers\/product\/ust-1000base-dwdm-sfp-transceiver-for-cisco-dwdm-sfp-3977-taa-compliant\/","title":{"rendered":"UST 1000BASE-DWDM SFP Transceiver for Cisco &#8211; DWDM-SFP-3977  TAA Compliant"},"content":{"rendered":"<p>The US Transceivers compatible DWDM-SFP-3977 is a 1000BASE-DWDM SFP transceiver engineered for single-mode fiber deployments requiring precise wavelength control. Operating at a DWDM wavelength of 1539.77 nm (ITU Channel 49), this module delivers 1 Gbps data rates with support for distances up to 80 km over SMF using an LC Duplex connector interface.<\/p>\n<p>Built to meet demanding network requirements, the US Transceivers compatible DWDM-SFP-3977 supports Digital Diagnostics Monitoring (DDM\/DOM), enabling real-time monitoring of optical power, temperature, and voltage. Its compact SFP form factor makes it ideal for deployment in a wide range of 1G-capable switches and routers that accept standard SFP interfaces.<\/p>\n<p>This module is TAA compliant and manufactured to meet RoHS, CE, and REACH standards, as well as IEEE 802.3 and SFP MSA specifications. It is a cost-effective, fully compatible alternative for enterprise, metro, and data center environments requiring DWDM long-haul connectivity.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The US Transceivers compatible DWDM-SFP-3977 is a 1000BASE-DWDM SFP transceiver engineered for single-mode fiber deployments requiring precise wavelength control. Operating at a DWDM wavelength of 1539.77 nm (ITU Channel 49), this module delivers 1 Gbps data rates with support for distances up to 80 km over SMF using an LC Duplex connector interface. Built to [&hellip;]<\/p>\n","protected":false},"featured_media":860,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[18],"product_cat":[485,484,344],"product_tag":[],"class_list":["post-873","product","type-product","status-publish","has-post-thumbnail","product_brand-cisco","product_cat-1000base-dwdm","product_cat-1g-sfp-dwdm-transceiver","product_cat-sfp","pa_data-rate-1gb","pa_distance-80km","pa_product_type-single-mode","pa_wavelength-c49","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product\/873","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/comments?post=873"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/media\/860"}],"wp:attachment":[{"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/media?parent=873"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_brand?post=873"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_cat?post=873"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/demo.accurays.com\/ustransceivers\/wp-json\/wp\/v2\/product_tag?post=873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}