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M-986-2R2PL Datasheet PDF

Clare M-986-2R2PL

The M-986-1R2 and -2R2 MFC Transceivers contain all the logic necessary to transmit and receive CCITT R2F (forward) and R2B (backward) multifrequency signals on one 40-pin integrated circuit (IC). Each channel can be connected to an analog source using a coder-decoder (codec) as shown in the Block Diagram below.
Part No. M-986-2R2PL
Datasheet M-986-2R2PL Download
Manufacturer
Clare
Description MFC Transceivers
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M-986-2R2PL datasheet page 1 preview

FEATURES

● Direct A-Law PCM digital input
● 2.048 Mb/s clocking
● Programmable forward/backward mode
● Programmable compelled/direct control
● Operates with standard codecs for analog interfacing
● Microprocessor read/write interface
● Binary or 2-of-6 data formats
● Single- or dual-channel versions
● 5 volt power

APPLICATIONS

● Test equipment
● Trunk adapters
● Paging terminals
● Traffic recorders
● PBXs

DESCRIPTION

M-9861R2 is a single-channel version; M-986-2R2 provides two channels. R1 single and dual multifrequency transceivers are also available as M-986-1R1 and 2R1. Operating with a 20.48 MHz crystal, the M-986 is capable of providing a direct digital interface to an Alaw-encoded PCM digital input. The M-986 can be configured by the customer to operate with the transmitter and receiver either coupled together or independently, allowing it to handle a compelled cycle automatically or via command from the host processor. For the R2 versions of the M-986, A-law is used for coding/decoding.
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