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DESCRIPTION

The M34116 is a product specifically designed for applications in PCM digital exchanges. It is able to handle up to 64 channels in any conferences combination from 1 to 29 conferences in parallel and to generate seven different tones and one melody.

■ HW AND SW COMPATIBLE WITH M116

■ 1 TO 64 SERIAL CHANNELS PER FRAME (CONTROLLED BY SYNC SIGNAL PERIOD)

■ 29 MAXIMUM CONFERENCES

■ 1 TO 64 SERIAL CHANNELS PER CONFERENCES

■ 3 SIMULTANEOUS OPERATION MODES AVAILABLE: CONFERENCE, TRANSPARENT AND TONE GENERATION

■ TYPICAL BIT RATES: 1536/1544/2048/4096Kbits/s

■ COMPATIBLE WITH ALL KINDS OF PCM FORMAT

■ μ AND A LAW (PIN PROGRAMMABLE)

■ EQUAL PRIORITY TO EVERY CHANNEL

■ ONE FRAME AND ONE CHANNEL DELAY FROM SENDING TO RECEIVING

■ OVERFLOW INFORMATION FOR EACH CONFERENCE BY PIN OS (OVERFLOW SIGNALLING) AND ON DATA BUS ON MPU REQUEST

■ INSTRUCTION SET COMPATIBLE WITH M3488

■ PROGRAMMABLE INPUT AND OUTPUT ATTENUATION OR GAIN FROM 0 TO 15dB WITH STEP OF 1dB FOR EACH CHANNEL

■ TONE GENERATION FROM 3.9Hz TO 3938Hz WITH MIN. STEP OF 3.9Hz

■ TOTAL OF 7 DIFFERENT TONE OUTPUTS IN PARALLEL PROGRAMMABLE VIA MPU (MAXIMUM 4 DIFFERENT FREQUENCIES

■ AND DURATIONS)

■ 1 MELODY OF MAXIMUM 32 PROGRAMMABLE FREQUENCIES AND DURATIONS

■ 5V POWER SUPPLY

■ TTL COMPATIBLE INPUT LEVELS, CMOS/TTL COMPATIBLE OUTPUT LEVELS

■ MAIN INSTRUCTIONS CONTROLLED BY MICROPROCESSOR INTERFACE:

– Channel connection to a conference

– Channel attenuation or gain

– Channel disconnection from both conference and transparent modes

– Tone and melody generation

– Overflow status

– Operatingmode

– Channel status