APPLICATIONS
The Conexant™ RC56LD, RC336LD, and RC144LD Modem Device Set supports data/fax, V.80 synchronous access mode, world-class, voice/TAM/ telephony extensions, speakerphone, AudioSpan, DSVD, and cellular/GSM operation depending upon the model, ROM size, and installed firmware (Table 1). The modem supports the following primary data modulations: ITU-T V.90/K56flex™ (RC56), V.34 (RC56 and RC336) and V.32bis. The modem is designed to operate with dial-up telephone lines in the U.S. and world-wide. PC Card interface models also support analog cellular direct connect and GSM direct connect. Parallel host interface models can support either analog cellular direct connect and GSM direct connect or telephony extensions. Serial DTE interface models support telephony extensions. Low profile, small PQFP/TQFP packages and low voltage operation with low power consumption make this device set ideal for laptop, notebook, and palmtop applications using parallel host or serial DTE interface with the MCU or using PC Card interface with the MCUP.