Facility Data Link Software
GL's Facility Data Link Analyzer performs FDL decode and analysis on T1 channels in both real time and off-line using saved files with high level data link (HDLC) frames and bit-patterned extended super frame (ESF) data link messages. The real-time mode of operation is used to capture streams of HDLC frames on the selected cards and also embedded bit-patterned ESF data link messages.