Sun Microsystems Interface Adapter manual T1 Compatibility Options, Operating Modes Options

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T1 Compatibility Options

The version of the hsip_init utility shipped with the SunHSI software has options that enable you to invert data and clock signals to accommodate the requirements of T1 or CEPT transmission equipment. The hsip_init parameters that allow for inversion are:

txd – transmit data signal

rxd – receive data signal

txc – transmit clock signal

rxc – receive clock signal

The effect of the default settings for all of these parameters is that SunHSI software does not invert the data or clock signal controlled by the parameter. To invert a signal, you specify a setting of the form param-name=-paramname, for example, txc=-txc.

As an example, suppose you want to invert the transmit and receive data signals on the first SunHSI/U port (port 0) on the second SunHSI/U adapter in your system. To do so, enter the following command:

#hsip_init hihp4 txd=-txd rxd=-rxd

To invert both clock and data signals, enter:

#hsip_init hihp4 txd=-txd rxd=-rxd txc=-txc rxc=-rxc

Appendix C discusses the background and requirements for these inverted settings.

Operating Modes Options

This section describes the operating modes that you can set with the hsip_init utility.

The SunHSI software operates in two main operating modes, the high-level data link control (HDLC) mode and the IBM (SDLC) mode. The HDLC mode always operates in a full-duplex, point-to-point fashion. While the IBM mode defaults to a full-duplex, point-to-point, operation, you can also set this mode to be either a half-duplex or a multipoint operation.

18 Sun PCI High Speed Quad Port Serial Interface Adapter User’s Guide • December 2005

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Contents Sun Microsystems, Inc Please Recycle Contents Cable Pin Assignments & Signals SunVTS Diagnostic Testing Page Figures Page Tables Page Regulatory Compliance Statements FCC Class a NoticeICES-003 Class B Notice Avis NMB-003, Classe B CCC Class a Notice Page Declaration of Conformity Page Preface How This Book Is OrganizedUsing Unix Commands Shell PromptsTypographic Conventions Related DocumentationSun Welcomes Your Comments Documentation, Support, and TrainingThird-Party Web Sites Product Overview Product DescriptionFeatures SunHSI/U AdapterHardware and Software Requirements 1Hardware and Software RequirementsPage To Install the Adapter SunHSI/U Adapter InstallationInstallation Process External Cabling RS-232 to RS-449 Connections Page SunHSI PCI Software Installation Installation Overview1SunHSI PCI Software Directories and Files To Remove Older Versions of the Software Before Installing the SoftwareVerifying the Software and Hardware Requirements Installing the Software To Install the SunHSI SoftwareAt the ok prompt, type the boot command with the -roption Configuring the Software To Test the InstallationTo Configure for Point-to-Point Protocol Edit the /etc/netmasks file as follows SunHSI Utilities Hsipinit UtilityT1 Compatibility Options Operating Modes OptionsHdlc Mode Hsiploop Utility Hsipstat Utility Page Cable Pin Assignments & Signals Pin AssignmentsDCD1A Appendix a Cable Pin Assignments & Signals RTS4A Interface Signals RS-449 Interface SignalsPage Null Modem Cable Requirements Configuring Internal or External Clocking Building the Null Modem CableRS-449 Signals RS-449 Null Modem CablePage Appendix B Null Modem Cable Requirements To RS-449 Converter Figure B-3X.21 to RS-449 ConverterT1 Inverted Data and Clock Signals Data Signal InversionBipolar with 8-Zero Substitution Hdlc Zero Insertion AlgorithmClock Signal Inversion Page SunVTS Diagnostic Testing Using the SunVTS sunlink TestPage To View Man Pages in the C Shell Environment Viewing the Man PagesMan Pages To View Man Pages in Bourne or Korn Shell Environments Make the changes effective in your current windowGlossary Page Index