MT8977 Datasheet | Mitel Networks Corporation

® ISO-CMOS ST-BUS™ FAMILY MT8977 ® T1/ESF Framer Circuit (ACCUNET T1.5) Preliminary Information Features - - - - - - - - - - - - - - D3/D4 or ESF framing and SLC-96 patible Two frame elastic buffer with jitter tolerance improved to 156 UI Insertion and detection of A, B, C, D bits, signalling freeze, optional debounce Selectable B8ZS, jammed bit (ZCS) or no zero code suppression Yellow alarm and blue alarm signal capabilities Bipolar violation count, FT error count, CRC error count Selectable robbed bit signalling Frame and superframe sync. signals, Tx and Rx AMI encoding and decoding Per channel, overall, and remote loop around Digital phase detector between T1 line and STBUS One...