Description

The MT9171 (DSIC) and MT9172 (DNIC) are multifunction devices capable of providing high speed, full duplex digital transmission up to 160 kbit/s over a twisted wire pair. They use adaptive echo cancelling techniques and transfer data in (2B+D) format compatible to the ISDN basic rate. Several modes of operation allow an easy interface to digital telecommunication networks including use as a high speed limited distance modem with data rates up to 160 kbit/s. Both devices function identically but with the DSIC having a shorter maximum loop reach specification. The generic "DNIC" will be used to reference both devices unless otherwise noted.

Features

• Full duplex transmission over a single twisted pair

• Selectable 80 or 160 kbit/s line rate

• Adaptive echo cancellation

• Up to 3km (9171) and 4 km (9172)

• ISDN compatible (2B+D) data format

• Transparent modem capability

• Frame synchronization and clock extraction

• MITEL ST-BUS compatible

• Low power (typically 50 mW), single 5V supply