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ModemӢĵModulatorͷ2ĸͽDemodulatorͷ3ĸƴɵģΪƽ׳ơèΪ绰仰źŵģܳ봫źţ̨Զļ޷ֱͨ绰ߴݣתźŲͨ绰ߴ͡ƵźΪز·һҪ͵źȥزǽյƵźţԭЯźšƽֵۺϡȻʵʵĵƽҪ⸴ӵöࡣ 
ModemòڵModemͨд湦ܣͨշ档еĻֿ֧ӵ绰ͷƵ񿨣Ϳڴ绰ͬʱԷ 
ModemͣʽModemʽModemٶֻ56Kֽгϳ۵56K Modemʮֳ죬ġèƷûв𣬼۸ȴʮֵ⡣ 
ʱߵԭ·ãزźжϻȵȡʱղͨͶϵϵͳ޷ӣʱ绰ܴ󡣹ƷƵModemҹ绰ӦƷƵǿһЩڵͼ۵Modemڴ˷Ҳ⡣ 
ӰװϿèÿʽ̨ʽ֮֡ÿʽèֱӰװСŵǼ۸ˡʡռ䣬ռCOMӿڣȱǰװʱԴͻڰװİ忨Խ࣬ͻĿԽ󡣲PCIġèѲЩˣûָʾƣʱ޷˽乤״̬
̨ʽèԼĵԴӦһRS-232CºCOMӿŵǰװʹáЯ㣬ռϵͳԴϴиָʾƣڼӵǰĹ״̬ͨܽ϶࣬ͬASVDȣȱǼ۸ԹһͬεģáèҪõĹһٶԪèһͶʣèʿûĵ⣬õ56kMODEMǵͨŷҪڸǿҽһҪѡ56KģModem׼ˣITUƶģ׼V.90
˹˾Rockwell˾ֱƳ˷V.90׼оƬ56K ModemͳһV.90׼ѡ56k ModemҪѡV.90׼ModemܹV.90׼56K Modemܱ֤ġèԺ󲻻ּ⡣ 
ߵ56K ModemصǣƷʾȶǿ׵ߣҹܶӲѹͬAutoscanȡΨһȱǼ۸񰺹󣬱56K3COM"èһֻǧԪϣһܳܣϣHayesMODEMҲҪ˾ŰԪſ򵽣˵SupraExpress56EGVC¸56K/R19ҲҪ800Ԫ3COMʹõԼоƬX2Ϊģ˺ͺϵModemʹõRockwellоƬK56flexΪ 
е56K Modem۸һ400700ԪңҪƷMulti-TechôWiscom½ʵ롢̨GVC(¸ͻȣҼʹõRochwellоƬ۴κ3COMModemһ˵ѡõͬһоƬͬModemϲ̫Ĳ죬۸֮⣬ҪΪModemõϺãÿɿĿؼ̵װԪɢ٣Ա֤Modemʱ乤ߡ̨GVC˾ModemȫλӵڶλƷ۸С㣬кܸߵܼ۸ȣڹнϴûȺ
GVCĲƷħ硢󡢽ȼϵУħ粻ܣʹVoice Mailܣ֧רߡԶšԶӵȹܡ ͵56K ModemǹڣҪڣModemߡèĿǰгϱȽϳƷнӥTPLinkProlinkTopstar EcomSpeedcomЩModem۸200Ԫ400Ԫ֮䣬ܼ۸ȼߣͨûкܴèڶϵͳӦԲZoltrix Hsp56KԣֻṩWindows95/98Ժ汾򣬶UNIXOS2LinuxDOSȻΪˡ 
ѡõMODEMʱӦϸ鿴˵ϵܲ͹ܵȣʡǷ˫Duplex棨FAXVoiceӲѹ䡢ʶͬȹܣǰӦǱرĹܣûһ㻹òҪҲ޷ 
õһModemӦϸһӡˢ·պ͵㺸ӦϵԪȻҪȥȽ鲻ͬϵԪĶ٣ָԭСӡˢ·λáʵڰϲûװԪĳЩ͵ModemϿ׿ӡˢиԪλȴûװԪ·ӡˢԪţаװλãȴҲԪͨЩԪ޶鿨ĹûʲôӰ죬һЩйذȫͿܵԪȱЩԪĿɿɽۿۡ⣬ûװѹ͹ѹܵȱԪʹҲûӰ죬ڴ绰·ѹʱʹModemҲһ𻵽ӿڵ· 
ѡûModemпܣ㶼Ӧϻʵʲһ¸ÿCPUռʺʵȡModemCPUռһۺָ꣬ҪȡCPUƵڴԼĽӿڣISAӿڻPCIӿڣ˺Ѹһֵһԭͬһ̨ϲԣѡCPUռʵ͵ModemҲǼModemܵһҪָ꣬56KָModemÿ봫͵λΪ56KByte7Kֻʵҵ뻷²õֵʵʹµֻͨ4.8Kҡ⣬56K Modemֻܱ֤56KЭ飨ʣļϴļȻ33.3K    
    