描述 Description

The MT8931C Subscriber Network Interface Circuit (SNIC) implements the ETSI ETS 300-012, CCITT I.430 and ANSI T1.605 Recommendations for the ISDN S and T reference points. Providing point-topoint and point-to-multipoint digital transmission, the SNIC may be used at either end of the subscriber line (NT or TE).

特性 Features

? ETS 300-012, CCITT I.430 and ANSI T1.605 S/T interface

? Full-duplex 2B+D, 192 kbit/s transmission

? Link activation/deactivation

? D-channel access contention resolution

? Point-to-point, point-to-multipoint and star configurations

? Master (NT)/Slave (TE) modes of operation

? Exceeds loop length requirements

? Complete loopback testing capabilities

? On chip HDLC D-channel protocoller

? 8 bit Motorola/Intel microprocessor interface

? Microprocessor-controlled operation

? Zarlink ST-BUS interface

? Low power CMOS technology

? Single 5 volt power supply

Applications

? ISDN NT1

? ISDN S or T interface

? ISDN Terminal Adaptor (TA)

? Digital sets (TE1) - 4 wire ISDN interface

? Digital PABXs, Digital Line Cards (NT2)