Page 2 - FCC STATEMENT; FEDERAL COMMUNICATIONS COMMISSION
FCC STATEMENT 1 FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and usedproperly, that is, in strict accordance with the manufacturer’s instructions, may cause i...
Page 4 - TRADEMARKS
TRADEMARKS 3 TRADEMARKS USED IN THIS MANUAL Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.
Page 5 - Contents
PROTOCOL CONVERTER MODEL A/S-4 4 Contents Chapter Page 1. General Information ................................................................................................................................6 2. A/S-4 Specifications .......................................................................
Page 6 - CONTENTS
CONTENTS 5 Chapter Page 6.12 Printer Options ..........................................................................................................................456.13 Verify Switch Settings ..........................................................................................................
Page 7 - General Information
PROTOCOL CONVERTER MODEL A/S-4 6 1. General Information THE A/S-4 is an SNA protocol converter. It is capable of a wide variety of conversions and adaptationtasks. Listed below are just a few of the tasks the A/S-4 was designed to perform: • Bit-oriented protocol, SDLC• Byte-oriented protocol, ASCII...
Page 8 - CHAPTER 1:General Information
CHAPTER 1:General Information 7 The A/S-4 is a 3274 work-alike controller emulating a PU2 with one LU2 terminal and one LU1 or LU3printer. This allows an ASCII terminal or micro computer to emulate a 3278 CRT with a 3278 printer.The A/S-4 will also emulate SNA/SDLC 3776 or 3777 work station with one...
Page 11 - Power Transformer
PROTOCOL CONVERTER MODEL A/S-4 10 3.4 Power Transformer The A/S-4 is shipped with a transformer for the standard USA 110-VAC outlet plug. A substitutetransformer may be ordered for the for 220 VAC or other voltages. A conversion plug for differentpower outlets is the responsibility of the purchaser....
Page 12 - NOTE; Terminal Switches
CHAPTER 4: Switches 11 4. Switches The A/S-4 is equipped with 8 banks of DIP switches, all of which are accessed from the bottom of theunit. The general functions of these switches are as follows: Terminal Interface Configuration SW2, SW3, SW6 Terminal Speed SW6 Modem Interface Configuration SW4, SW...
Page 15 - How to Set Terminal Port Switches for Different Devices
PROTOCOL CONVERTER MODEL A/S-4 14 4.2 How to Set Terminal Port Switches for Different Devices DEVICES VDU or Async Modem Centronics Tally printer “Y” VDU, DTE or DCE device Printer Data Products Printer (Busy on 20) (Busy on 19) Cable Switch 2 Switch 2 Switch 2 Switch 2 Switch 2 1 OFF 1 OFF 1 OFF 1 ...
Page 18 - How to Set Modem Port Switches for Different Devices
CHAPTER 4: Switches 17 4.4 How to Set Modem Port Switches for Different Devices DEVICES ASYNC MODEM SYNC MODEM FRONT END PROCESSOR Switch 4 Switch 4 Switch 4 1 OFF 1 OFF 1 OFF 2 ON 2 ON 2 OFF 3 OFF 3 OFF 3 OFF 4 OFF 4 OFF 4 OFF 5 OFF 5 OFF 5 ON 6 ON 6 ON 6 ON 7 OFF 7 OFF 7 ON 8 OFF 8 ON 8 ON Switch ...
Page 20 - CHAPTER 5: LED Indicator
CHAPTER 5: LED Indicator 19 5. LED Indicator The front of A/S-4 enclosure provides 10 light emitting diodes (LED) indicators. The indicators arearranged and labeled in the following order, from left to right. TTX Terminal Transmit Data TRX Terminal Receive Data TCD Terminal Carrier Detect TCTS Termi...
Page 24 - CHAPTER 6: Power Up and Configuration Menu Options; Switching from A/S-4’s Main Menu to Running the Application
CHAPTER 6: Power Up and Configuration Menu Options 23 The input allowed at this menu is one letter A thru J so to run or change an option. Listed below is abrief description of what each letter gives you access to, refer to the section listed for more details. Letter Section Description A 6.4 Run A/...
Page 29 - Changing Video Attributes and Commands for VDU
PROTOCOL CONVERTER MODEL A/S-4 28 6.7 Changing Video Attributes and Commands for VDU The menu obtained by selecting item D of the main menu is shown in Figure 7. This menu allows theoperator to define the parameters which will give the proper video highlighting to the fields on the VDUscreen. CURREN...
Page 46 - Printer Options
CHAPTER 6: Power Up and Configuration Menu Options 45 N. VDU Auto Logon Msg - This 80 character message can be changed by entering the letter N followed by the Logon message, containing any printable ASCII character (X`20’-X`7F’). The field separator(X`1C’) character, which is used to delimit the di...
Page 52 - CHAPTER 7: Interactive Operation; Interactive Operation
CHAPTER 7: Interactive Operation 51 7. Interactive Operation The A/S-4 operating in the Interactive mode, emulates an IBM 3274/76 cluster controller with a singleLU Type 2 terminal IBM 3278 and an IBM 3287 LU Type 1 or 3 printer. The VDU LU assigned by the H-Application Option menu is the terminal’s...
Page 57 - Batch Printer Operation
PROTOCOL CONVERTER MODEL A/S-4 56 2) SI (X`0F’) character asks the A/S-4 for the SNA line status of each Logical Unit. The response to the SI is described in the transmission of the SI character as a special controlcharacter. Any data following the SI character will be thrown away until a Start of F...
Page 58 - CHAPTER 8: Batch Operation
CHAPTER 8: Batch Operation 57 When sending data to the printer each character is inspected and then sent if needed. A column countis kept to determine the position of the printer’s print head which is compared to the selected columnwidth of the paper. If a space character is found, it is not sent ri...
Page 59 - Batch Default Options
PROTOCOL CONVERTER MODEL A/S-4 58 8.4 Batch Default Options The A/S-4 has the capability of loading all it’s Batch options from the VDU (computer) without goingthrough any menus. This is done by receiving the shift out (X’0E;) character followed by the optionsselected in hexadecimal form. The VDU an...
Page 64 - CHAPTER 9: Battery RAM
CHAPTER 9: Battery RAM 63 9. Battery RAM All operating parameters selected from the configuration menus are saved in battery backed-up RAM(Random Access Memory). Therefore, if AC power to the A/S-4 is interrupted, it is unnecessary toreenter the parameters previously selected. If the unit is powered...
Page 66 - CHAPTER 11: Software Upgrade and EPROM Replacement; Software Upgrade and
CHAPTER 11: Software Upgrade and EPROM Replacement 65 11. Software Upgrade and EPROM Replacement Each EPROM has a label affixed to the top containing an address and the current data of the software inthe IC. To replace the old EPROM with the new EPROM, follow the procedure below: 1. Unplug the A/S-4...
Page 77 - Communication Operations
PROTOCOL CONVERTER MODEL A/S-4 76 Appendix A: 3274 SNA Communication Operations This appendix is intended to give a VDU operator the basic description of the System NetworkArchitecture (SNA) for a 3278 CRT (or like device) in the area of remote communications. First the 3278 CRT is connected to a 32...
Page 78 - APPENDIX A: 3274 SNA Communication Operations
APPENDIX A: 3274 SNA Communication Operations 77 NOTE Some applications may not send a welcome message. The operator must send the firstmessage to start the transactions. 8. After the operator has finished working, he should signoff the application. The system will then UNBIND the CRT so that the CR...
Page 80 - APPENDIX B: General 3770 SNA Communication Operations
APPENDIX B: General 3770 SNA Communication Operations 79 8. After the operator has finished working, he should signoff the application. The system will UNBIND all the LUs from the host system so that the work station and application are nolonger communicating with each other. This leaves the work st...
Page 81 - Appendix C: Conversion Charts
PROTOCOL CONVERTER MODEL A/S-4 80 Appendix C: Conversion Charts The following pages contain the EBCDIC-to-ASCII Character conversion chart. Characters under the“RECV” heading are the EBCDIC characters received from the SNA host. The ASCII equivalent is to theright under the “CONV” column. When EBCDI...
Page 82 - APPENDIX C: Conversion Charts
APPENDIX C: Conversion Charts 81 EBCDIC-to-ASCII Character Conversion EBCDIC-to-ASCII EBCDIC-TO-ASCII RECV CONV PRT CONV RECV CONV PRT CONV 00-NUL 00-NUL 20-SP 20-DS 00 THW 01-SOH 01-SOH THW 21-SOS 00 THW 01-STX 02-STX THW 22-FS 1C-FS THW 03-STX 03-ETX THW 23- 00- THW 04-PF 00- NOTE 2 24-BYP 00- THW...
Page 88 - © Copyright 1989. Black Box Corporation. All rights reserved.
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