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3Com RMON-EMP-3 installation and operation guide RS-232 25-Pin Port Connector Pinouts

Models: RMON-EMP-3

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RS-232 25-Pin Port Connector Pinouts

RS-232 25-Pin Port Connector Pinouts

This section describes the serial port pinouts for the RS-232 25-pin connector on the RMON MultiProbe Module faceplate. Table A-1 lists the pinouts for the RS-232 25-pin connector.

Table A-1. RMON MultiProbe Module RS-232 25-Pin Port

Connector Pinouts

Pin	US	CCITT	DIN

1	CHS GND	101

2	Tx	103	D1

3	Rx	104	D2

4	RTS	105	S2

5	CTS	106	M2

6	DSR	107	M1

7	GND	102

8	DCD	109	M5

20	DTR	108	S1

22	RI	125	M3

23	SR	111

Note: The RMON MultiProbe Module asserts pins 20 and 4 continuously. Pins 20 and 4 are de-asserted only when the serial line is hung up in a modem connection.

Specifications A - 5

Image 101

3Com RMON-EMP-3 RS-232 25-Pin Port Connector Pinouts, Table A-1. RMON MultiProbe Module RS-232 25-Pin Port

Contents

Guide ONline Ethernet RMON MultiProbe Module Installation and OperationDocument Number Printed March Model Number RMON-EMP-3 Software Version 3Com Corporation 118 Turnpike Road Southborough, MAFederal Communications Commission Notice ii Ethernet RMON MultiProbe Module Installation and Operation GuideCanadian Emissions Requirements VDE Class B ComplianceRestricted Rights Ethernet RMON MultiProbe Module Installation and Operation Guideiv Ethernet RMON MultiProbe Module Installation and Operation Guide How to Use This Guide ContentsChapter 2 - Installing the Module Chapter 1 - Introductionvi Ethernet RMON MultiProbe Module Installation and Operation Guide Chapter 3 - Configuring the ModuleAppendix A - Specifications Chapter 4 - TroubleshootingAppendix B - Technical Support Indexviii Ethernet RMON MultiProbe Module Installation and Operation Guide Figures x Ethernet RMON MultiProbe Module Installation and Operation Guide Tables xii Ethernet RMON MultiProbe Module Installation and Operation Guide Audience How to Use This GuideStructure of This Guide Convention Document ConventionsIndicates Examplexvi Ethernet RMON MultiProbe Module Installation and Operation Guide Related Documents3Com Documents The following documents supply related background information Reference Documents1 Introduction RMON Probe RMON OverviewRMON Architecture RMON Client Ethernet RMON GroupsHostTopN Group - Sorts stations by top traffic contributors. You can use this information to identify the most active hosts on a segment or the hosts producing the most errors RMON MultiProbe Module Overview RMON MultiProbe Module Features Other benefits of the RMON MultiProbe Module include Theory of Operation Figure 1-1. RMON Sample Application Sample ApplicationPage Installing the Module 2 2 Installing the ModulePrecautionary Procedures Table 2-1. Quick Installation Steps Quick InstallationUnpacking Procedures Installing the RMON MultiProbe Module RMON MultiProbe Module Figure 2-1. RMON MultiProbe Module in the ONline System ConcentratorConnecting a Terminal Initializing the RMON MultiProbe Module Figure 2-2. Main Configuration Menu Monitoring the Front Panel Figure 2-3. RMON MultiProbe Module Front Panel LEDs and Reset Button Table 2-2. Module LED Interpretations LED Name Table 2-2. Module LED Interpretations ContinuedColor StatePage Configuring the Module 3 3 Configuring the ModuleConfiguration Menu Overview Main Menu Figure 3-1. Configuration Menu Flow ChartFigure 3-1. Configuration Menu Flow Chart Continued Modifying Configuration Menu Values Using the Main Configuration Menu Figure 3-2. Main Configuration Menu Result Table 3-1. Main Configuration Menu DescriptionOption Figure 3-3. Download Menu Using the Download MenuDisplays the TFTP server IP address and enables you enables you to enter a new value. The filename canreset, the module reverts to the software contained Table 3-2. Download Menu DescriptionFigure 3-4. Modify/View Configuration Values Menu Using the Modify/View Configuration Values MenuDisplays the time zone and enables you to enter a Table 3-3. Modify/View Configuration Values Menu Descriptiondescription of this menu, refer to the section Using For a description of this menu, refer to the sectionDescription Continued Using the Modify/View Serial Configuration Values MenuTable 3-3. Modify/View Configuration Values Menu Figure 3-5. Modify/View Serial Configuration Values Menu Serial Port IP Address Table 3-4. Modify/View Serial Configuration Values Menu Descriptionenables you to enter a new value. Valid values Menu Description Continued Table 3-4. Modify/View Serial Configuration ValuesDisplays the modem hangup string and enables Table 3-5. Modem Init Strings and Hangup Strings Modem Init Strings and Hangup StringsTable 3-5. Modem Init Strings and Hangup Strings Continued Table 3-6. Connect Response String Example Modem Response StringsUsing the Modify/View Network Settings Menu Figure 3-6. Modify/View Network Settings Menu Figure 3-6 is an example of the Modify/View Network Settings menuTable 3-7. Modify/View Network Settings Menu Description Table 3-7. Modify/View Network Settings Menu Description Continued Using the Modify/View Network Interface Settings MenusFigure 3-7. Modify/View Network Interface 1 Settings Menu Displays the interface subnet mask and enables you Table 3-8. Modify/View Network Interface Settings Menu DescriptionDisplays the interface IP addressand enables you to Assigning the Interface IP Address and Subnet Mask Configuring the Module and InterfacesThis configuration sets up one interface for each bridged segment Assigning the Module Default Gateway BOOTP Configuration Process Using BOOTP to Configure the Module and InterfacesBOOTP Description Sample BOOTPtab file BOOTP RequirementsUsing BOOTP # /etc/bootptab database for bootp server /etc/bootpd Assigning Interfaces to Networks Figure 3-8. DIP Switch Location Using the DIP Switch to Assign NetworksSwitch Table 3-9. Network Selection DIP Switch SettingsSetting Network SelectionUsing Management Commands to Assign Interfaces to Networks Management Command Examples Saving Network Assignments Showing Module and Interface ConfigurationsShow Module Command Show Port Command Configuring the Module 3 Re-initializing the RMON MultiProbe Module Information Lost Warm-Starting the RMON MultiProbe ModuleInformation Preserved Cold-Starting the RMON MultiProbe Module Information Lost Information PreservedPage Troubleshooting 4 4 TroubleshootingTable 4-1. Diagnostic Tests and Interface Status LEDs Troubleshooting Startup ProblemsTable 4-2. Troubleshooting Malfunctions Troubleshooting MalfunctionsTable 4-2. Troubleshooting Malfunctions Continued Symptom Table 4-2. Troubleshooting Malfunctions ContinuedPossible Cause Corrective ActionTable 4-2. Troubleshooting Malfunctions Continued Symptom Table 4-2. Troubleshooting Malfunctions ContinuedPossible Cause Corrective ActionTroubleshooting Network Connectivity Problems Technical Assistance Page Electrical Specifications Environmental Specifications A SpecificationsMechanical Specifications General Specifications Connectors and Cables Memory Configuration AllocationEnvironmental Specifications Electrical SpecificationsPower Requirements Operating TemperatureGeneral Specifications Mechanical SpecificationsConnectors and Cables Table A-1. RMON MultiProbe Module RS-232 25-Pin Port RS-232 25-Pin Port Connector PinoutsConnector Pinouts RS-232 Crossover Cable for a PC or Terminal Sample Out-of-Band Connections Modem Cable PinoutsONline System Concentrator Modem ModemStraight-Through Cable Ethernet Null-Modem Cable Direct SLIP Connection ONline SystemUsing the RMON MultiProbe Module SLIP Address Table A-2. RS-232 Straight-Through Cable Pinouts RS-232 Straight-Through CableFigure A-3. RS-232 Straight-Through Cable Pinouts RS-232 Null-Modem CableTable A-3. Maximum Number of Entries for Ethernet Tables Memory Configuration AllocationOn-line Technical Support B Technical SupportWorld Wide Web Site Support from Your Network SupplierEmail Technical Support Support from 3Com Returning Products for Repair Accessing the 3Com MIB3Com Technical Publications Page Numerics Index2 Index Page 4 Index VDE compliance Warm start configuration information