Cable Requirement, Communication Requirements | Compaq 281862-002

7-2Direct Connections

Cable Requirement

For proper communication, IRC requires a null-modem cable with a complete set of modem control signals. The exact wiring diagram for this cable is shown in Appendix B. Cables are occasionally labeled as “null-modem” which do not conform to this diagram. Check with your cable vendor to ensure that the cable meets the requirements shown in Appendix B. Cables that differ from this specification may not function correctly.

Communication Requirements

For proper operation, both IRC and the terminal must be configured and operate compatibly. The following communication attributes are important for proper out-of-band access:

■Managed Server Serial Port Configuration — For a direct-connect configuration, one of the server’s integrated serial ports is used as the communication device. Verify that the desired port is enabled and configured correctly. See “Configuring an external modem or direct connection” in Chapter 2 for more details. One suggested configuration is using integrated serial port B configured as COM2, IRQ3.

■IRC Configuration — Make sure you have configured IRC’s communication device as direct connect. Also ensure that the COM port and interrupt settings match the serial port selected above. In direct- connect configurations, it is recommended that the serial port sharing options be set to dedicated, making the selected serial port into a dedicated out-of-band management port. Configure and note the baud rate and communication settings, as the terminal needs to mirror these settings to gain access.

■Terminal Communication Settings — Configure the terminal to match to communication settings specified for IRC. This includes the communication baud rate, number of data bits, whether a 7-bit parity mode is selected, and the number of stop bits. If the terminal is not configured correctly, you can not obtain a login prompt from IRC.

■ Flow Control — Configure the terminal for hardware flow control. An improper flow control setting could result in the loss of characters, causing the terminal to display incomplete or garbled information, especially during peak video activity.

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Compaq 281862-002 manual Cable Requirement, Communication Requirements, 2Direct Connections

Contents

Integrated Remote Console Compaq Integrated Remote Console User Guide Contents Establishing a Connection Using Attention Key Sequences Appendix B Vii Text Conventions Getting Help Symbols in TextCompaq Website Viii About This Guide Telephone Numbers Integrated Remote Console Capabilities Introduction Benefits of Using Integrated Remote Console Requirements2Introduction Installation Sequence Outline Terminology IRC Terminology4Introduction Expected Audience Accessing Integrated Remote Console Installing the Modem Setup and Configuration Configuring the Modem Configuring a non plug-n-play ISA Modem2Setup and Configuration Select View or Edit Details 4Setup and Configuration Configuring an external modem or direct connection Example Configuring an integrated serial port Configuring Integrated Remote Console Integrated Remote Console Configuration Summary6Setup and Configuration Integrated Remote Console Configuration Summary Internal Modem External Modem or 8Setup and Configuration Modem Strings Assigning Authorized Users 10Setup and Configuration Example Selecting a user to modify User Configuration 12Setup and Configuration Example Edit User screen Example Setting Security Access 14Setup and Configuration Establishing a Connection Establishing a Connection Using Compaq Insight Manager 2Establishing a Connection Device Setup window 4Establishing a Connection Establishing an Out-of-Band Remote Console Connection Invoke Integrated Remote Console Login 6Establishing a Connection Verifying Modem Settings COM port settings 8Establishing a Connection Establishing a Connection Using Windows HyperTerminal Compaq Integrated Remote Console User Guide 10Establishing a Connection Setting up a Connection HyperTerminal is now ready to dial into the managed server Connection window 12Establishing a Connection Establish a connection using HyperTerminal 14Establishing a Connection Saving a Connection Configuration Guidelines Display SettingsTerminal settings Modem settings Limitations16Establishing a Connection Establishing a Connection Invoke IRC Login 18Establishing a Connection Login Remote Console Main Menu 20Establishing a Connection 10. Remote Console mode Using Integrated Remote Console Remote Console mode 2Using Integrated Remote Console Main Menu Options Remote Console Menu Option 4Using Integrated Remote Console Beginning a Remote Console Session Using Remote Console mode Key Functions for Navigating the IRC Menu System 6Using Integrated Remote Console Compaq Integrated Remote Console User Guide Returning to the Main Menu 8Using Integrated Remote Console Changing the Default Attention Key Changing the Terminal Screen Size 10Using Integrated Remote Console Return to Main Menu 12Using Integrated Remote Console Reboot Server Menu Option Server Reboot menu Reboot Server warning 14Using Integrated Remote Console 10. Power Cycle warning 12. Power Cycle using Ansi terminal emulation emulation 16Using Integrated Remote Console View Reboot Sequence 13. Reboot Replay Sequence screen 18Using Integrated Remote Console 14. Event Log screen View Event Log 20Using Integrated Remote Console Change Password 16. Manage Login Information screen Manage Login Information Modify User Information 22Using Integrated Remote Console 18. Manage Configuration screen Manage Configuration 24Using Integrated Remote Console Communications Setup 20. Edit Modem Strings screen Modem Strings 26Using Integrated Remote Console Disconnecting Using Attention Key Sequences Example Returning to IRC Main Menu 2Using Attention Key Sequences Compaq Integrated Remote Console User Guide Example Pressing F10 Key 4Using Attention Key Sequences Key Function Atn a Example Entering Alt + P 6Using Attention Key Sequences Example Entering Ctrl + Alt + Del More Attention Key Examples 8Using Attention Key Sequences Example United States Keyboard with Attention Keys indicated Changing the Attention Key Additional Modem Information Modem TypesModem Requirements External Serial Modems Important Tip2Additional Modem Information Windows Modems Internal ISA Plug-n-Play Modems 4Additional Modem Information PCI-based Modems Modem Configuration Setting Summary Modem Configuration Strings Computer to Modem Serial Port Speed Data Carrier Detect DCD Operation6Additional Modem Information Error Correction Data Terminal Ready DTR InterpretationFlow Control Data Compression Response Codes8Additional Modem Information Direct Connections Connecting Using a Terminal or Terminal Emulator Cable Requirement Communication Requirements2Direct Connections Compaq Integrated Remote Console User Guide 4Direct Connections Connecting Using a Terminal Server or Concentrator Obtaining the Appropriate Cable 6Direct Connections Example Cisco 2509/2511 RJ-45 Connector Pinout Connector Example Configuring Integrated Remote Console Example Cisco 2509/2511 RJ-45 to DB-9F Adapter8Direct Connections Configuring the Terminal Server 10Direct Connections Modem Sharing 2Modem Sharing Asynchronous Management Compaq Integrated Remote Console User Guide 4Modem Sharing Graphical Remote Control Compaq Integrated Remote Console User Guide 6Modem Sharing Additional Information Temporarily disable IRC Turn on Modem Log FileView Modem Log File 8Modem Sharing Locate the Modem Initialization Strings Re-enable IRC with Proper Initialization Strings Modem Selected Baud Init String #1 Init String #2 Suggested Modem Settings Dedicated or Shared in non-NT Environment Modem Settings 2Suggested Modem Settings Suggested Settings When Modem is Shared in Windows NT Shared in NT 4.0 Environment Modem Settings 4Suggested Modem Settings Terminal or PC Modem Null-Modem Cable Description Table C-1 Error Table of Contents Troubleshooting 2Troubleshooting Post Errors Connection problems using a modem in dedicated mode Connection Problems 4Troubleshooting Cannot obtain a login prompt in dedicated mode Compaq Integrated Remote Console User Guide 6Troubleshooting Connection problems using a modem in shared mode Cannot obtain a login prompt in shared mode 8Troubleshooting Compaq Integrated Remote Console User Guide Connection problems using a direct- connection Cannot obtain a login prompt using a direct-connection10Troubleshooting Terminal doesn’t scroll correctly in Remote Console Mode Problems while using IRC 12Troubleshooting View Reboot Sequence is grayed out Index-1 Index Index-2 Index-3 DCD Index-4 Index-5 Index-6 Index-7 Index-8 Index-9 Index-10 Index-11 Index-12