3Com 1.024.1644-00 manual No restrictions on the minimum speed for

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Technical Reference

&Un Sets floor connect speed when set above 0, if the connection cannot be established above this speed, the modem will hang up. When &Un is used in conjunction with &Nn and &Nn is greater than 0, &Nn is the ceiling connect speed.

		&N=0	&N>0
	&U=0	Connects at best	Connects at speed
		possible speed	defined by &Nn. If the
		between your modem	connection cannot be
		and the remote modem	made above this speed,
		Note: These factory	the modem will
		default settings should	hang up.
		be sufficient for most users.
	&U>0	Connects at any speed	Connects at any speed
		faster than the value of &Un	between &Nn. and &Un
	&U0	No restrictions on the minimum speed for the
		connection
	&U1	300 bps
	&U2	1200 bps
	&U3	2400 bps
	&U4	4800 bps
	&U5	7200 bps
	&U6	9600 bps
	&U7	12,000 bps
	&U8	14,400 bps
	&U9	16,800 bps
	&U10	19,200 bps
	&U11	21,600 bps
	&U12	24,000 bps
	&U13	26,400 bps
	&U14	28,800 bps
	&U15	31,200 bps
	&U16	33,600 bps
	&U17	28000 bps
	&U18	29333 bps
	&U19	30666 bps
	&U20	32000 bps
	&U21	33,333 bps
62	56K Voice Faxmodem Internal - User’s Guide

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Contents 56K Voice Faxmodem Internal Page Table of Contents Page Table of Contents Page Welcome to 56K*Information Access Product Features Back Channel Link Rates Upload Speeds Flash ROM Upgradable Determining Available Resources Control PanelWindows 95 version Determining Your Version of WindowsClick Properties Plug and Play Installation How to Prepare for Plug and Play InstallationHow to Insert the Modem into the Computer Serial NumberPage Page Page Page Installing Modem Drivers With Windows Versions 950 and 950a Moving Through the New Hardware Found ScreensPage COM Port Click More Info… Installing Modem Drivers With Windows Version 950b Using the Update Device Driver Wizard ScreensPage COM Port Click More Info… Word about COM Ports and IRQs How to Change the Modem’s Settings Page How to Insert the Modem into the Computer Page Page Page Page Restart Now Software Installation WindowsFlow Control Type of ModemInitialisation String Possible Solution Read This FirstTroubleshooting Possible Solution Possible Solution Possible Solution Troubleshooting Possible Solution Support Resources Are You Still Having Problems? Support ResourcesAnalogue signals Answer modeAnalogue loopback ApplicationGlossary Glossary Auto dial Baud rateBinary digit bit Bit rateData mode Glossary CharacterCharacters per second CPS Class 1Default Detect phaseDigital signals GlossaryGlossary Error control Fax modeFacsimile Flow controlLocal echo ModemNonvolatile memory Nvram OFF/ON hookOriginate mode Glossary Online fallback/fall forwardParity ProtocolTerminal mode Serial transmissionStart/stop bits Terminal22 bis 27ter32 bis See online fall back/fall forward42 bis XmodemYmodem Ymodem GTechnical Reference Technical Reference ITU-T answer sequenceDials the specified phone number, includes the following En Sets local echoLn Controls speaker volume internals only Technical Reference Hn Controls ON/OFF hookDisplays the following information Mn Operates speakerNumeric codes Verbal codesTechnical Reference Sets result code displayed, default is 11/RINGINGTechnical Reference Resets modem Displays a list of ampersand & commandsAn Enables/disables additional result code subsets see Xn Cn Controls Carrier Detect CD signal Fn Loads a read-only non-programmable factory configuration Kn Enables/disables data compression Sets Guard Tone Hn Sets Transmit Data TD flow control see also &Rn300 bps Sets pulse rotary dial make/break ratio No restrictions on the minimum speed for Wn Writes current configuration to Nvram templates Yn Sets break handling64 56K Voice Faxmodem Internal User’s Guide Register Default Function RegistersDefault Function Bit Value ResultTechnical Reference Register Default Function S13Timer S27 See the instructions for S13 S34 Bit Fax Commands +FCLASS=n Sets the mode of operationDisplayed As a number Words Description +FTH=n+FRH=n Regulatory CE ComplianceLimited Warranty