MT8926 Datasheet | Mitel Networks Corporation

® ISO-CMOS ST-BUS™ FAMILY MT8926 T1 Performance Monitoring Adjunct Circuit (PMAC) .. Features - - - - - - - - ANSI T1.403 and T1.408 Performance Monitoring and Maintenance Functions Operates in conjunction with Mitel's T1/ESF framer circuits (MT8976/77 and MH89760B) D3/D4 (SF), and ESF modes of operation One and two second timers Supports bit-oriented and message-oriented data transfer over the Facility Data Link (FDL) ESF and D3/D4 Yellow Alarms, Alarm Indication Signal and Loss of Signal Indication Framing Error, CRC Error and Bipolar Violation Error counters Alarm interrupts and counter overflow interrupts ISSUE 3 July 1993 Ordering Information MT8926AE MT8926AP 28 Pin Plastic DIP 28 Pin PLCC -40°C to 85°C Description The MT8926 Performance Monitoring Adjunct Circuit (PMAC) interworks with Mitel's MT8976/77 and MH89760B to provide performance monitoring data, alarms and T1 maintenance Features . It meets the performance monitoring and maintenance requirements of ANSI T1.403 and T1.408, and also supports Channel Service Unit (CSU) requirements. Applications - - - T1 line performance data collection CSU performance monitoring ISDN Primary Rate maintenance controller FDLi E8Ki Transmit BOM Register Receive BOM Register & RAI Debounce IRQ C2i CSTi0 CSTi1 CSTo BSI RESET ST-BUS Interface Snap Shot Registers FSI SEI 4 Bit SE Counter 4 Bit FE Counter E8Ko E8K/FDL Mux FDLo FDL Extractor Framer, SE/FE Detector Line Loopback Integrator 8 Bit BPV Counter Rx A B8ZS Recovery, BPV Detector Rx B ECLK DSTi0 DSTi1 DSTo F0i Payload & Line Loopback Control 8 Bit CRC Counter CSI AIS/LOS Detector Timer 1SEC Figure 1 - Functional Block Diagram 4-3 28 PIN PLASTIC DIP 28 PIN PLASTIC...