MT9074 - Mitel Networks Corporation

MT9074 T1/E1/J1 Single Chip Transceiver

The MT9074 is a single chip device, operable in either T1 or E1 mode, integrating either an advanced T1 (T1 mode) or PCM 30 (E1 mode) framer with a Line Interface Unit (LIU). The framer interfaces to a 2.048 Mbit/s backplane providing selectable data link access with optional HDLC controllers for either the FDL bits and channel 24 (T1 mode) or Sa bits and ch.

Features

• Combined E1 (PCM 30) and T1 (D4/ESF) framer, Line Interface Unit (LIU) and link controller with optional digital framer only mode In T1 mode the LIU can recover signals attenuated by up to 36 dB (6000 ft. of 24 AWG cable) In E1 mode the LIU can recover signals attenuated by up to 36 dB (2000 m. of 0.65mm cable) Two HDLCs: FDL and channel 24 in T1 mode, timeslot 0 (Sa bits) and timeslot 16 in E1 mode Two-frame elastic buffer in Rx & Tx (T1) directions Programmable transmit delay through transmit slip buffer Low jitter DPLL for clock generation Enhanced alarms, performance monitoring and error.