Description
The MT8979 is a single chip CEPT digital trunk transceiver that meets the requirements of CCITT Recommendation G.704 for digital multiplex equipment.
The MT8979 is fabricated in Mitel’s low power ISO-CMOS technology.

FEATUREs
• Single chip primary rate 2048 kbit/s CEPT transceiver with CRC-4 option
• Meets CCITT Recommendation G.704
• Selectable HDB3 or AMI line code
• Tx and Rx frame and multiframe synchronization signals
• Two frame elastic buffer with 32 µsec jitter buffer
• Frame alignment and CRC error counters
• Insertion and detection of A, B, C, D signalling bits with optional debounce
• On-chip attenuation ROM with option for ADI codecs
• Per channel, overall and remote loop around
• ST-BUS compatible

APPLICATIONs
• Primary rate ISDN network nodes
• Multiplexing equipment
• Private network: PBX to PBX links
• High speed computer to computer links