Page 11 11. Product DescriptionThis manual contains the information required to install and use the EXM-31 HighSpeed Modem expansion module.The EXM-31 is a plug-in PC-compatible internal modem for computer systems withEXM expansion capabilities. As an internal modem, it includes an 16550-compatibleserial port, and can be set to standard PC I/O COM1-COM4. It can also be configuredto use one of eight interrupts.The EXM-31 is based on the AT&T HSM144DC chip set. When configuring withstandard PC software, use a classification such as “Generic AT&T Class 1 Fax,14400 Data Modem.” The EXM-31 supports the following features:• Data Modes⎯ CCITT V.32bis: 14400 (TCM), 12000 (TCM), 7200 (TCM)⎯ CCITT V.32: 9600 (TCM), 4800 (QAM)⎯ CCITT V.22bis: 2400 (QAM)⎯ CCITT V.22: 1200 (DPSK)⎯ CCITT V.21: 300 (FSK)⎯ CCITT V.23: 75/1200 (FSK)⎯ Bell 212A: 1200 (DPSK)⎯ Bell 103: 300 (FSK)• Fax Modes⎯ CCITT V.17: 14400 (TCM), 12000 (TCM), 9600 (TCM), 7200 (TCM)⎯ CCITT V.29: 9600 (QAM), 7200 (QAM)⎯ CCITT V.27ter: 4800 (DPSK), 2400 (DPSK)⎯ CCITT V.21 Channel 2: 300 (FSK)• V.42 error correction (LAPM and MNP)• V.42bis and MNP 5 data compression• V.42bis data compression over MNP• Extensive AT commend set• EIA/TIA 578 Class 1
