RS-232 Cable Pinouts | Multitech MT5600BA, MT5600BL guide

Appendix F - Pin Descriptions

			Appendix F - Pin Descriptions
Label	Pin	I/O type	Signal name/description
RDL	21	RDL	Remote Digital Loop Input to modem to enable RDL test.
RI	22		Ring Indicator RI output high indicates the presence of
			a ring signal on the telephone line.
	23		NC
XCLK	24	XCLK	External Clock Input to modem used in special
			synchronous applications.
TM	25	TM	Test Mode Output from modem to indicate modem is in
			one of the test modes.

RS-232 Cable Pinouts

		DTE DB-25			DCE DB-25
		connector			connector


		TD	2			2	TD
		TD	2			2	TD
		RD	3			3	RD
		RD	3			3	RD
		RTS	4			4	RTS
		RTS	4			4	RTS
		CTS	5			5	CTS
		CTS	5			5	CTS
		DSR	6			6	DSR
		DSR	6			6	DSR
		GND 7				7 GND
		GND 7				7 GND
		CD	8			8	CD
		CD	8			8	CD
		DTR 20				20 DTR
		DTR 20				20 DTR
		RI 22				22	RI
		RI 22				22	RI

Fig. F-1. 25-pin to 25-pin RS-232 cable.

		DTE DB-9			DCE DB-25
		connector			connector


		TD	3			2	TD
		TD	3			2	TD
		RD	2			3	RD
		RD	2			3	RD
		RTS	7			4	RTS
		RTS	7			4	RTS
		CTS	8			5	CTS
		CTS	8			5	CTS
		DSR	6			6	DSR
		DSR	6			6	DSR
		GND 5				7 GND
		GND 5				7 GND
		CD	1			8	CD
		CD	1			8	CD
		DTR	4			20 DTR
		DTR	4			20 DTR
		RI	9			22	RI
		RI	9			22	RI

Fig. F-2. 9-pin to 25-pin RS-232 cable.

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Multitech MT5600BA, MT5600BL manual RS-232 Cable Pinouts, Appendix F - Pin Descriptions

Contents

MT5600BA-V.92 MT5600BA-V.90 MT5600BL-V.90 MT5600BA/BL SeriesData/Fax Modem User Guide Patents MultiModemII User GuideRecord of Revisions Trademarks MultiModemII User Guide Table of ContentsTable of Contents None of the Indicators Light Product Description Chapter 1 - Description and FeaturesAbout AT Commands Features Safety Warnings Connect the Modem to the Telephone Line Dialup Connection Connect theTwo-Wire Leased LineStep 1 - Connect the Modem to Your System Connect the Modem to Your PC Connect the Phone to the Modem Optional Connect the Four-Wire Leased LineConnect the Modem to the AC Power Outlet Power-On Test Removing an Old Modem Driver Step 2 - Install the Modem DriverInstalling the Modem Driver for Windows 98/Me/2000 XP Installing the Modem Driver for Windows NT MT5600BA-V.92 Only Step 3 - Setting Your Country or Region CodeUsing the LCD Panel Using the Global Wizard How to Verify the Code Step 4 - Install PhoneToolsUsing AT Commands How to Change the Country/Region Code LED Indicators Chapter 3 - Using the Front PanelModem Configuration Menu Structure Liquid Crystal Display LCDOption Selection Branches Menu OverviewTrunks Limbs Limbs Twigs Status Trunk Twigs Basic Options TrunkLimbs Branches Continued from previous page Basic Options Trunk, continued Advanced Options Trunk Advanced Options Trunk, continued Limb Remote Configuration Options TrunkDiagnostic Options Trunk Caller ID Options Trunk Phone Number Memory Options Trunk Status Menu Options Basic Options ASYNC, NORM? Normal asynchronous transmission using the Advanced Options VIEW S-REGISTER SETTINGS. Use the Æ, È, ÇÅ, and Enter buttons to select the number of the S-register whose value you want displayed. To scroll through a list of digits, press the ÇÅ and È buttons. To go to the next position, press the Æ button. To back up or to exit without saving, press the Æ button several times. To display the value, press the Enter button. Same as the Sr? command Phone Number Memory Options Remote Configuration OptionsDiagnostic Options Caller ID Options Chapter 4 - Leased Line Operation Two-Wire Setup Four-Wire Setup Dial Backup and Leased Line Restoral Setup Dial Backup and Leased-Line Restoral 10. Press the Æ button to go to the next digit in the number Changing the Remote Configuration Password Chapter 5 - Remote ConfigurationBasic Procedure Setup Changing the Remote Escape Character Turning Callback Security On and Off Setup ProceduresAT Command Method Chapter 6 - Callback Security Front Panel Method Assigning Callback PasswordsAT Command Method Front Panel Method Assigning Callback Phone Numbers Calling Procedure Command #CBP y= x Store Callback Password Callback Security CommandsCommand #DBn Callback Enable/Disable Command #CBN y= - x Store Callback Number Callback Assignments Form LocationPasswordPhone Number None of the Indicators Light Chapter 7 - Troubleshooting The Modem Does Not Respond to Commands The Modem Cannot Connect When Dialing The Modem Disconnects While Online Data Is Being Lost The Modem Cannot Connect When AnsweringFile Transfer Is Slower Than It Should Be Fax and Data Software Can’t Run at the Same Time There Are Garbage Characters on the MonitorThe Modem Doesn’t Work with Caller ID FCC Part 68 Telecom Appendix A - Regulatory Compliance Canadian Limitations Notice Fax Branding Statement New Zealand Telecom Warning Notice EMC, Safety, and R&TTE Directive ComplianceInternational Modem Restrictions South African Notice Appendix B - Technical Specifications loop Step 1 - Identify the Modem Firmware Upgrade OverviewAppendix D - Upgrading the Firmware Introduction Step 2 - Identify the Current Firmware Version Step 3 - Download the Upgrade FileStep 4 - Extract the Upgrade Files Step 5 - Clear Your Stored Paramenters Step 6 - Upgrade the Modem’s FirmwareStep 7 - Restore Your Parameters Installation Appendix E - Installing a Modem Under LinuxUsing the Terminal Program Minicom to Verify Operation Standard Linux Serial Port Definitions 3. Select Dialup Configuration Tool Using the Modem to Call the InternetCalling the ISP Answering Calls RS-232 Pin Descriptions Appendix F - Pin Descriptions Appendix F - Pin Descriptions RS-232 Cable Pinouts HSKi CTS HSKo RTS Leased Line PinoutsDTE Mini-DIN 8-pin connector DCE DB-25 connector Index