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Commetrex\u2019 60112 Fax Modem Bundle includes Commetrex\u2019 V.21, V.27ter, V.29, and V.17 in a C-coded reference design and versions optimized for the Texas Instruments TMS320C6200 and TMS320C5400 DSPs in a TI XDAIS Algorithm Standard-conformant and Commetrex format. The optimized versions provide up to 16 simultaneous V.17 receivers for each 100-MCPS on a TI \u2018C6400 or 7 simultaneous modems on the \u2018C5400.<\/p>\n
Commetrex first deployed its modems in 1994. Hundreds of developers in Asia, North America, and Europe have since licensed the technology, and dozens of OEMs have integrated the modems into proprietary embedded environments. Everyday, millions of fax pages are sent and received with Commetrex\u2019 fax modems.<\/p>\n
These modems have exceptional performance in high-noise and ISI channels. They can withstand large noise bursts, dropouts, and amplitude changes.<\/p>\n
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Module<\/strong><\/th>\n| Performance (mega-cycles\/sec)<\/strong><\/th>\n | Code Space (bytes)<\/strong><\/th>\n | Constants and tables (bytes)<\/strong><\/th>\n | Per-Instance Memory(bytes)<\/strong><\/th>\n<\/tr>\n | Total<\/td>\n | 5.3 (V.17R)<\/td>\n | 49,656*<\/td>\n | 14,938*<\/td>\n | <\/td>\n<\/tr>\n | V.17 transmitter<\/td>\n | 3.7<\/td>\n | 5,984<\/td>\n | 5,036<\/td>\n | 472<\/td>\n<\/tr>\n | V.17 receiver<\/td>\n | 5.3<\/td>\n | 28,000<\/td>\n | 7,158<\/td>\n | 2076<\/td>\n<\/tr>\n | V.27ter\/V.29 transmitter**<\/td>\n | 4.6 (V.27: 4.0)<\/td>\n | 6,904<\/td>\n | 4,228<\/td>\n | 504<\/td>\n<\/tr>\n | V.27ter\/V.29 receiver**<\/td>\n | 5.1 (V.27: 5.5)<\/td>\n | 23,264<\/td>\n | 3,996<\/td>\n | 1632<\/td>\n<\/tr>\n | V.21 transmitter<\/td>\n | 2.1<\/td>\n | 3,488<\/td>\n | 2,080<\/td>\n | 192<\/td>\n<\/tr>\n | V.21 Receiver<\/td>\n | 3.9<\/td>\n | 4,160<\/td>\n | 1,804<\/td>\n | 200<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n*Total memory utilization does not equal the sum of individual modems due to common elements | \n**V.27ter and V.29 are table-driven and share a single code set and static data space.<\/address>\n ‘C5400 Resource Numbers<\/h3>\n
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