MH89790B Datasheet ST-BUS FAMILY CEPT PCM 30/CRC-4 Framer & Interface Preliminary Information

Manufacturer: Mitel Networks

Overview: ® ST-BUS™ FAMILY MH89790B CEPT PCM 30/CRC-4 Framer & Interface Preliminary.

MH89790B st-bus family cept pcm 30/crc-4 framer & interface preliminary information by Mitel Networks - Datasheet Preview

Datasheet Details

Part number	MH89790B
Manufacturer	Mitel Networks
File Size	488.94 KB
Description	ST-BUS FAMILY CEPT PCM 30/CRC-4 Framer & Interface Preliminary Information
Download	MH89790B Download (PDF)

General Description

The MH89790B is Mitel’s CEPT PCM 30 interface solution, designed to meet the latest CCITT standards PCM 30 format with CRC-4.

The MH89790B provides a complete interface between a 2.048 Mbit/sec digital trunk and Mitel’s Serial Telecom Bus, the ST-BUS.

The MH89790B is a pin-compatible enhancement of the MH89790, permitting the removal of the tuneable inductor and inclusion of the external NAND gate used for generating RxD.

Key Features

Complete primary rate 2048 kbit/s CEPT transceiver with CRC-4 option Selectable HDB3 or AMI line code Two frame elastic buffer with 32µ s jitter buffer Tx and Rx frame and multiframe synchroniza-tion signals Frame alignment and CRC error counters Insertion and detection of A, B, C, D signalling bits with optional debounce Line driver and receiver P.

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