https://atrc.net.pk/dokuwiki/ 2026-04-11T09:33:48+00:00 https://atrc.net.pk/dokuwiki/ https://atrc.net.pk/dokuwiki/lib/tpl/dokuwiki/images/favicon.ico text/html 2024-04-06T13:29:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://atrc.net.pk/dokuwiki/doku.php?id=products:ict:communications:error_detection:frame_check_sequence&rev=1712410140&do=diff What is Frame Check Sequence? What is Frame Check Sequence? Frame Check Sequence (FCS) refers to extra bits added to the frame for error detection. It is used for HDLC error detection. It is 2 byte or 4-byte field that is used to detect errors in the address field, control field, and information field of frames transmitted across the network. It is used to ensure the data frame is not corrupted by the transmission medium while sending it from sender to receiver. HDLC Frame Format