Black Box A/S-4 manual Power Transformer, Synchronizer

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PROTOCOL CONVERTER MODEL A/S-4

3.4 Power Transformer

The A/S-4 is shipped with a transformer for the standard USA 110-VAC outlet plug. A substitute transformer may be ordered for the for 220 VAC or other voltages. A conversion plug for different power outlets is the responsibility of the purchaser.

3.5 Synchronizer

The A/S-4 has a unique feature on the modem port to allow the A/S-4 to run SDLC over asynchronous modems, therefore providing a low cost dial up system. This is possible by the use of a hardware synchronizer circuit that derives clocks from the data. To use this feature, set the modem port switches as listed in Section 4.0 for an Asynchronous Modem.

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Contents

Protocol Converter Model A/S-4 FCC Statement Protocol Converter Model A/S-4 Trademarks Contents Contents General Information General Information Indicators Power SpecificationsTerminal Automatic Speed Detection Installation1General Installation Modem InterfaceSynchronizer Power TransformerCarrier Detect SwitchesTerminal Switches CLEAR-TO-SENDREQUEST-TO-SEND Baud Rate Devices How to Set Terminal Port Switches for Different DevicesModem Switches REQUEST-TO-SEND How to Set Modem Port Switches for Different Devices Option Switches LED Indicator Power Up Power Up and Configuration Menu OperationsType Home for VDU Match or Space Version Power Up MessageProtocol Converter Main Menu RUN no Changes Else Change VDU A/S-4 Main MenuCurrent Switching from A/S-4’s Main Menu to Running the Application Protocol Converter Model A/S-4 Current Changing the VDU TypeVDU = NEW VDU Changing VDU Commands for the VDU Type Selected Changing Video Attributes and Commands for VDU ESC X Y Z 4 Standard Keyboard Layout Power Up and Configuration Menu Options ADM 1178 Keyboard Layout IBM 3101 Keyboard Layout PNS Keyboard Layout Changing Keyboard Layout Type Protocol Converter Model A/S-4 ESC or =PF20 PA Keys CTL Z or Protocol Converter Model A/S-4 Changing Application Options Changing ApplicationDo not set the VDU and PRT LU addresses to the same values XON/XOFF=OFF Changing Batch Application Options Printer Options Current Power Up and Configuration Menu Options Programmable Printer Options Verify Switch Settings Reload Default Options Interactive Operation Batch Operation Receiving Batch Data from the SNA host Batch OperationSOF ETX Transmitting Batch Data to the SNA HostSTX Batch Printer Operation Batch Operation Batch Default Options BIT 7 Terminate Message to VDU on 1-END of Chain 1ST Char from VDU Device IndicatorLU Address Customer Option aCustomer Option C Inbound LU XFRChar Option not Used LU Address not UsedC5D3 = Lear Siegler ADM 3A Default CRT = Ascii STANDARD, VT100Default Kybd = Standard Application OptionsEND of Options Battery RAM Maintenance Software Upgrade and Eprom Replacement System/Line Gen for Batch Addr = C1 Transfer = Modetab = InstinclmSscpfm = Ussscs Vpacing =Buffact = Setupmsg SetupinfUsstab = Rjeincdt Istatus = ActiveCkptlns = Waitime =Operator CctlNohold Nosep Start Operator Cctl Ckptlns =Cmpct Comp Nosep Select = PUNCH1Transp Pudest = Pulcl Punode Xeonode =Adiscon Codea Comp Ebcdic Ifacea LowspeedCompact Modeent LOGMODE=COMPACT,FMPROF=X’03’,TSPROF=X’03’ Prtrans = YESModeent LOGMODE=BUF512,FMPROF=X’03’,TSPROF=X’03’ Modeent LOGMODE=BUF256,FMPROF=X’03’,TSPROF=X’03’Usscmd CMD=RMT101,REP=LOGON,FORMAT=BAL Ussparm PARM-APPLID,DEFAULT=JES2Ussparm PARM=LOGMODE,DEFAULT=BATCH Ussparm PARM=LOGMODE,DEFAULT=MOCOMPProblem Symptom Possible Remedies Troubleshooting Problems and Odd Installation ProblemsTroubleshooting Problems and Odd Installation Problems Appendix a 3274 SNA Communication Operations Appendix a 3274 SNA Communication Operations Appendix B General 3770 SNA Communication Operations Appendix B General 3770 SNA Communication Operations Appendix C Conversion Charts Appendix C Conversion Charts Protocol Converter Model A/S-4 Appendix C Conversion Charts Protocol Converter Model A/S-4 Recv Conv Protocol Converter Model A/S-4 Park Drive Lawrence, PA