Sun Microsystems Interface Adapter manual To RS-449 Converter, Figure B-3X.21 to RS-449 Converter

Page 54

X.21 to RS-449 Converter

FIGURE B-3illustrates the pin connections required for an X.21 to RS-449 converter.

T(2,9)

S (6,13)

C (3,10)

R(4,11) I (5,12) G (8)

X.21 interface

(15-pin connector)

FIGURE B-3X.21 to RS-449 Converter

TxD (4,22)

RxC (8,26)

TxCI (5,23) RTS (7,25)

CTS (9,27)

RxD (6,24)

DCD (13,31)

SG (19)

RS-449 interface workstation

(37-pin connector)

When using an X.21 conversion you must perform the following hsip_init operation:

#hsip_init hihp0 9600 txc=txc rxc=rxc

Note – Both receive and transmit clock inputs (RxC and TxCI) need a clock signal if txc is set to txc and rxc is set to rxc.

34 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 DocumentationDocumentation, Support, and Training Third-Party Web SitesSun Welcomes Your Comments Product Overview Product DescriptionFeatures SunHSI/U AdapterHardware and Software Requirements 1Hardware and Software RequirementsPage SunHSI/U Adapter Installation Installation ProcessTo Install the Adapter External Cabling RS-232 to RS-449 Connections Page SunHSI PCI Software Installation Installation Overview1SunHSI PCI Software Directories and Files Before Installing the Software Verifying the Software and Hardware RequirementsTo Remove Older Versions of the Software 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 Viewing the Man Pages Man PagesTo View Man Pages in the C Shell Environment To View Man Pages in Bourne or Korn Shell Environments Make the changes effective in your current windowGlossary Page Index