Brief Description
The CMX635 is an integrated Subscriber Processor designed for low chip-count ISDN voice/data terminals and POTS terminal adaptors. Its functions facilitate operation in an ISDN feature phone with speakerphone capability or in a POTS terminal adapter with Subscriber Pulse Metering (SPM), DTMF encoder/decoder, Caller Line ID (CLID) and Caller ID on Call Waiting (CIDCW) capabilities. It also implements many functions needed in an intelligent NT or NT1Plus system.

FEATUREs
• S/T Interface to ITU-T I.430 (TE & NT1)
• 2B + 1D-channel HDLC Controllers
• IOM™-2 / GCI Interface
• Selectable A-Law/µ-Law PCM Codec
• 100mW Speaker-Phone Output
• 2 Independent Analogue Inputs
• Pre-Programmed Tone Generators
• V.23/Bell 202 FSK Generator
• Ringing Signal and SPM Generators
• DTMF Encoder/Decoder

APPLICATIONs
• ISDN Terminal Equipment
• ISDN Intelligent NT’s
• ISDN Phones and Feature Phones
• Digital & Analogue Answer-Phones
• Data Adaptors
• Active and Passive Terminal Adaptors
• Alarm Systems
• Point-Of-Sale Terminals
• ‘Group 4’ Fax Equipment
• Video Phones