{"id":2808,"date":"2026-02-04T14:05:40","date_gmt":"2026-02-04T07:05:40","guid":{"rendered":"https:\/\/3onedatavn.com\/?post_type=product&p=2808"},"modified":"2026-02-04T14:05:45","modified_gmt":"2026-02-04T07:05:45","slug":"sw485wa","status":"publish","type":"product","link":"https:\/\/3onedatavn.com\/vi\/san-pham\/sw485wa\/","title":{"rendered":"SW485WA"},"content":{"rendered":"

T\u1ed5ng quan v\u1ec1 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i RS-232 sang RS-485 c\u00f4ng nghi\u1ec7p c\u00f3 c\u00e1ch ly quang \u0111i\u1ec7n SW485WA c\u1ee7a 3onedata<\/h2>\n

SW485WA l\u00e0 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i giao di\u1ec7n RS-232 sang RS-485 d\u1ea1ng nh\u1ecf g\u1ecdn, c\u1ea5p c\u00f4ng nghi\u1ec7p, cho ph\u00e9p th\u1ef1c hi\u1ec7n chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u hai chi\u1ec1u gi\u1eefa c\u1ed5ng n\u1ed1i ti\u1ebfp RS-232 v\u00e0 RS-485, \u0111\u1ed3ng th\u1eddi cung c\u1ea5p b\u1ea3o v\u1ec7 c\u00e1ch ly quang \u0111i\u1ec7n 1500V m\u00e0 kh\u00f4ng c\u1ea7n ngu\u1ed3n c\u1ea5p ngo\u00e0i. Thi\u1ebft b\u1ecb cung c\u1ea5p 1 c\u1ed5ng RS-232 v\u00e0 1 c\u1ed5ng RS-485, \u0111\u01b0\u1ee3c trang b\u1ecb b\u1ea3o v\u1ec7 ch\u1ed1ng xung 600W v\u00e0 ch\u1ed1ng t\u0129nh \u0111i\u1ec7n 15kV, gi\u00fap ng\u0103n ng\u1eeba hi\u1ec7u qu\u1ea3 h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb.
\nC\u1ed5ng RS-232 c\u1ee7a SW485WA s\u1eed d\u1ee5ng giao di\u1ec7n DB9 d\u1ea1ng l\u1ed7, c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi PC v\u00e0 l\u1ea5y ngu\u1ed3n t\u1eeb c\u1ed5ng n\u1ed1i ti\u1ebfp c\u1ee7a PC th\u00f4ng qua c\u00e1c \u0111\u01b0\u1eddng t\u00edn hi\u1ec7u TXD, RTS v\u00e0 DTR. C\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n chuy\u1ec3n \u0111\u1ed5i hai chi\u1ec1u RS-232\/485 ngay c\u1ea3 khi ch\u1ec9 \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n t\u1eeb t\u00edn hi\u1ec7u TXD. B\u1ea5t k\u1ec3 t\u00edn hi\u1ec7u \u1edf m\u1ee9c cao hay th\u1ea5p, SW485WA v\u1eabn c\u00f3 th\u1ec3 nh\u1eadn \u0111\u1ee7 ngu\u1ed3n \u0111i\u1ec7n t\u1eeb c\u00e1c t\u00edn hi\u1ec7u d\u1eef li\u1ec7u\/handshake n\u00e0y.
\nThi\u1ebft k\u1ebf c\u1ee7a SW485WA \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p. Thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n l\u1ef1c, \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p v\u00e0 h\u1ec7 th\u1ed1ng n\u1ea1p th\u1ebb IC.<\/p>","protected":false},"excerpt":{"rendered":"

B\u1ed9 chuy\u1ec3n \u0111\u1ed5i RS-232 sang RS-485 c\u00f4ng nghi\u1ec7p v\u1edbi c\u00e1ch ly quang \u0111i\u1ec7n<\/h1>\n

H\u1ed7 tr\u1ee3 chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u hai chi\u1ec1u gi\u1eefa 1 c\u1ed5ng n\u1ed1i ti\u1ebfp RS-232 v\u00e0 1 c\u1ed5ng n\u1ed1i ti\u1ebfp RS-485
\nH\u1ed7 tr\u1ee3 c\u00e1ch ly quang \u0111i\u1ec7n 1500V
\nC\u00f4ng ngh\u1ec7 c\u1ea5p ngu\u1ed3n qua c\u1ed5ng \u0111\u1ed9c \u0111\u00e1o, kh\u00f4ng c\u1ea7n ngu\u1ed3n c\u1ea5p ngo\u00e0i
\nT\u1ed1c \u0111\u1ed9 l\u00ean \u0111\u1ebfn 38400bps, h\u1ed7 tr\u1ee3 128 n\u00fat
\nT\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n t\u1ed1c \u0111\u1ed9 t\u00edn hi\u1ec7u c\u1ed5ng n\u1ed1i ti\u1ebfp, chuy\u1ec3n ti\u1ebfp t\u1ef1 \u0111\u1ed9ng kh\u00f4ng \u0111\u1ed9 tr\u1ec5
\nH\u1ed7 tr\u1ee3 d\u1ea3i nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng r\u1ed9ng t\u1eeb -40\u00b0C \u0111\u1ebfn 80\u00b0C
\nK\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, d\u1ec5 d\u00e0ng l\u1eafp \u0111\u1eb7t<\/p>","protected":false},"featured_media":2810,"template":"","meta":[],"product_brand":[],"product_cat":[75],"product_tag":[],"class_list":{"0":"post-2808","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-serial-converter","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/3onedatavn.com\/vi\/wp-json\/wp\/v2\/product\/2808","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3onedatavn.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/3onedatavn.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3onedatavn.com\/vi\/wp-json\/wp\/v2\/media\/2810"}],"wp:attachment":[{"href":"https:\/\/3onedatavn.com\/vi\/wp-json\/wp\/v2\/media?parent=2808"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/3onedatavn.com\/vi\/wp-json\/wp\/v2\/product_brand?post=2808"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/3onedatavn.com\/vi\/wp-json\/wp\/v2\/product_cat?post=2808"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/3onedatavn.com\/vi\/wp-json\/wp\/v2\/product_tag?post=2808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}