Unique Micro Design Advanced Thinking Products Model 164 Quad
Contents
1. for data travelling from S1 to S2 ie there is no terminal scanner to Host software flow control For this reason switch C 4 enables an intercharacter delay to slow down data input from S3 if needed 2 1 2 S3 blocking in modes 1 amp 2 In modes 1 and 2 input received on serial channel S3 may be blocked Here input is buffered until a terminator character is received which in the standard firmware option is the carriage return control character ie hexadecimal OD decimal 13 Once the terminating character is received the optional preamble character string is output followed by the buffered characters excluding the terminating character followed by the optional postamble character string The received block may be manipulated as determined by the block modifier routine given in the table below A Spectra Physics bar code symbology id stripping modifier is provided as standard other routines can be provide upon request Issue 1 2 12 92 14 Unique Micro Design DOC M164 UM Input from Spectra Physics Scanner Output FF12234567890 CR lt STX gt 1234567890 lt ETX gt Example of block modifer 2 with lt STX gt preamble and lt ETX gt postamble Block Description modifier routine 1 Nomanipulation gt gt NH aM characters removed 3 reeved Block modifier routines Blocking type Setting 1 postamble 2 postamble ON ON preamble modified BLOCK usin2. ie 4 LASA SS 5 20 8 Issue 1 2 12 92 DOC M164 UM 26 Unique Micro Design DOC M164 UM PC serial port M164 serial port DB9 socket DB9 socket 2 3 3 2 6 BS 4 5 5 4 ee ee a a a mm 8 6 4 4 3 To Centronics printer A standard PC parallel printer cable should be used to connect the parallel port of the Model 164 to a Centronics printer 4 4 4 To parallel port of PC A straight through pin to pin DB25 plug to DB25 plug cable is used to connect the parallel port of a PC to the parallel input port of the Model 164 Issue 1 2 12 92 2
3. jnoconnecion EX EEE AE 4 o p DTR input data stream handshake 5 Ig no connection 6 jnocomecin 7 o p RTS ie always asserted mig tied to 5V can power external devices 8 jip CTS output data stream handshake 9 noconnection case Ground Serial interface DB9 plug connector 71 XD 6 9 Front view of DB9 plug Issue 1 2 12 92 23 Unique Micro Design DOC M164 UM 4 2 Parallel Interface 1 Strobe Jo I 2 Daao Jo I 3 Daai Jo I 4 Daa2 OC 5 Daa3 OC 6 Daas Jo I 7 batas lo M 8 Daas Jo 11 Bus as 3 10 Acknowledge do o JO 7 Busy o JO O I GND O GND 12 13 14 15 16 17 18 25 Ground gt Parallel I O interface DB25 socket connector 13 RR KK XX XXX XxX XxX X i 25 RR Kk KK KK KK KK 14 Front view of DB25 socket Issue 1 2 12 92 24 Unique Micro Design DOC M164 UM 4 3 External power interface Issue 1 The Model 164 requires 6 to 9 volts DC at 300 mA to operate The external power connector connects to standard plug packs with centre pin grounded 2 12 92 25 Unique Micro Design 4 4 Typical cables 4 4 1 To serial port of Printer PC serial port M164 serial port DB25 plug DB9 socket Do en 2 d cte eue c ere 3 Y cime seu 5 Aa ccm 8 4 4 2 To serial port of PC PC serial port M164 serial port DB25 socket DB9 socket LA A 2 Ses 3 B
4. determined by the binary pattern given in switch banks A and B The second character determines which port to select ASCII 1 ie hexadecimal 3T decimal 49 selects S1 ASCII LEA selects S2 and ASCII 3 selects S3 If it is desired to send the selection code character through to the selected output port two of these selection code characters need to be sent in sequence With switch C 3 on the selection code is only interpreted after a selected idle time In this way graphic data which may contain a valid selection code will not be interpreted OFF ON Modes A X L ne interp reted A e after idle timeout Issue 1 2 12 92 Unique Micro Design DOC M164 UM 30 second idle timeout ON 10secondidle timeout OFF 1 bit ON 0 bit A3 A2 A3 A4 B1 B2 B3 B 4 bit7 bit6 bit5 bit4 bits bit2 bit bito Switch bank A and B in Mode 3 Selection code character 2 4 Mode 4 Printer Sharer With mode 4 the parallel port is configured as an output n this mode the Quad Coupler is operating as printer sharer Her th parallel output ort is shared between the three serial nput ports Contention is resolved on a irst come first served basis with the irst active serial port being assigned to he printer port After no activity on the active input port for the selected idle timeout period the parallel port is released for allocation to
5. the next active serial port Ct Fh HET pH Switch C 3 selects whether a form feed control character is sent after a print job C C2 C33 C4 FON ON Mote4 Ni No form feed sent after idle timeout Issue 1 2 12 92 19 Unique Micro Design DOC M164 UM TI TON T Form feed sent after idle timeout OFF 30 secondidle timeout JON fOsecondidetimeout Issue 1 2 12 92 20 Unique Micro Design DOC M164 UM 2 5 Communications parameters For serial channel S3 the serial communications parameters are fixed at 9600 baud 8 data bits with no parity and one stop bit with hardware handshaking For serial channels S1 amp S2 switch bank D and E determine their parameters Switch setting Baud rate ON ON OFF 60 J J Switch definitions Serial ports S1 amp S2 baud rate OFF BO Enabled Disabled Issue 1 2 12 92 21 Unique Micro Design DOC M164 UM ON Odd O 1 handshake Hardware DTR CTS Software XON XOFF S2 handshake Hardware DTR CTS Software XON XOFF Switch definitions S1 amp S2 communications parameters Issue 1 2 12 92 22 Unique Micro Design DOC M164 UM 4 Interfaces 4 1 Serial interfaces The serial interfaces use 10 Volt levels The pin consigment on the DB9 plug male is a subset of the PC AT serial interface
6. D E S 2 A E eS 1 Model 164 Quad Coupler Advanced Thinking Products OA TATIVUVd Ups Situs DESI R Status The three serial ports on the Model 164 are designated S1 S2 and S3 A parallel port is also provided which can be configured either as an input designated PI or configured as an output designated PO The Model 164 can operate in a number of modes as configured via the externally accessible switches These switches are arranged in five banks designated A to E with each bank comprising four switches numbered 1 to 4 For example switch 2 of bank B is designated B 2 Issue 1 2 12 92 5 Unique Issue 1 icro Design DOC M164 UM There are two indicators power and status The power indicator lights when power is applied to the unit The status indicator flashes once on successful power up and ashes in various sequences to indicate g error and other conditions 2 12 92 Unique Micro Design DOC M164 UM 1 4 Modes of operation The Model 164 is a multi functional device It can operate as a serial to parallel converter parallel to serial converter ASCII to PC TERM converter simple baud rate converter serial wedge printer sharer code activated switch There are four basic operating modes with the Model 164 numbered from 1 to 4 These modes determin how the par
7. ERM and the multi user system 1 8 Serial to Parallel converter With mode 2 the parallel port is configured as an output ie it connects to a parallel printer This mode provides serial input conversion to parallel output Issue 1 2 12 92 9 Unique Micro Design DOC M164 UM A Parallel ll Port Optional PC Term r Conversion AD Serial Port Serial Port Serial Port SI S2 S3 As Mode 2 has input from serial port S2 directed to Sl a host computer could communicate with a parallel printer whilst receiving input from a bar code scanner Issue 1 2 12 92 10 Unique Micro Design DOC M164 UM 1 9 Code activated switch Mode 3 provides code activated switch functionality where parallel input is interpreted for codes which direct output to a selected serial port Port C 0x WY W Serial Port Serial Port Serial Port S1 S2 S3 d E i OI e OI e 9 conde 1 10 Printer sharer Mode 4 provides printer sharing functionality Here input to S1 S2 and S3 is directed to the parallel output port Port contention is resolved by time out ie if say S1 is outputting to the printer then S2 is locked out from sending information until S1 finishes its job Job completion is determined by having no activity for a selected time out per
8. Unique Micro Design Advanced Thinking Products Model 164 Quad Coupler User Manual Document referenc DOC M164 UM UMD Part Number 6 0164 993 4 Issue 1 First release Revision 2 12 92 Unique Micro Design DOC M164 UM Unique Micro Design Advanced Thinking Products Model 164 Quad Coupler Document referenc DOC M164 UM UMD Part Number 6 0164 993 4 Issue 1 First release Revision 2 12 92 Unique Micro Design Pty Ltd A C N 007 419 490 2 23 Wadhurst Drive Boronia Vic 3155 Australia Tel 61 3 887 1022 Fax 61 3 887 0734 Copyright C 1992 Unique Micro Design P L Issue 1 2 12 92 2 Unique Micro Design DOC M164 UM Issue Date Comments 2 12 92 First release Issue 1 2 12 92 3 Unique Micro Design DOC M164 UM 1 Introduction 1 1 Scope This manual provides installation and configuration details for the Unique Micro Design Model 164 Quad Coupler 1 2 Overview The Model 164 Quad Coupler is a general purpose microcomputer based device which provides three full duplex serial ports and a m S configurable parallel I O port Its ultiple operating modes are selected by a eries of switches This manual describes the Model 164 operating with the standard firmware Other firmware options can be provided to suit Specific applications Issue 1 2 12 92 4 Unique Micro Design DOC M164 UM 1 3 Description Ru ll Ll S 3
9. allel I O and serial ports behave These modes are selected by switches C 1 and C 2 which are detailed in chapter 23 The following sections describe Some typical configurations 1 5 Parallel to serial converter Mode 1 has the parallel port configured as an input ie it connects to the printer port of a PC Input into this port is output to S1 thereby converting parallel input to serial output Issue 1 2 12 92 7 Unique Micro Design DOC M164 UM Optional Parallel PC Term Port m Conversion Serial Port Serial Port Serial Port Sl S2 S3 se CIC o o 1 6 Serial wedge Mode 1 also offers a serial wedging function Here S1 and S2 can communicate bidirectionally Serial port S3 inserts its input into this stream by either outputting to S1 ie where communication is full duplex with the terminal or both S1 or S2 where communication is half duplex In this way a bar code scanner can insert its data between a terminal and a host computer Issue 1 2 12 92 8 Unique Micro Design DOC M164 UM Parallel Port Optional DO Term r Conv sion Serial Port Se al Port Serial Port S1 S3 ae mE 1 7 PC TERM conversion In mode 1 ASCII input to 3 can optionally be converted to PC TERM output allowing bar code scanners and the like to be inserted in between terminals running PC T
10. g routine 3 postamble Issue 1 2 12 92 15 Unique Micro Design DOC M164 UM Switch bank A in Modes 1 amp 2 Blocking selection 2 1 3 Pre and post amble strings Switch bank B is used to select the pre and post amble character strings which are sent with blocked data in modes 1 and 2 Preamble valid when blocking enabled Setting BA B2 ES OFF Hexadecimal Decimal 02 03 0A OD Svitch definitions Pre post amble string selection Issue 1 2 12 92 16 Unique Micro Design DOC M164 UM 2 2 Mode 2 Serial to Parallel Converter With mode 2 the parallel port is configured as an output and accepts input from S1 The operation of S3 is the same as mode 1 oN OFF Moe2 RE ne P forFlssiost 51535 ON satostas2 oe GES S3 PC Term conversion S3 to OFF No intercharacter delay ON Intercharacter delay of 30 mS Issue 1 2 12 92 17 Unique Micro Design DOC M164 UM 2 3 Mode 3 Code Activated Switch With mode 3 the parallel port is configured as an input In this mode the Quad Coupler is operating as a code activated switch Input is accepted from the parallel port and is directed to either serial port S1 S2 or S3 as selected by a designated two character sequenc The first character in the sequence is the selection code which is
11. iod Issue 1 2 12 92 11 Unique Micro Design DOC M164 UM 4 f Parallel Port AN AN AN Serial Port Serial Port Serial Port SI 82 S3 Doone e Issue 1 2 12 92 12 Unique Micro Design DOC M164 UM 2 Configuration 2 1 Mode 1 Serial Wedge Parallel to Serial Converter With mode 1 the parallel port is configured as an input with its data being directed to S1 providing parallel to serial conversion Mode 1 also provides serial wedging Here SI and S2 are cross linked which provides Host to Terminal communications S3 is wedged between Sl and 3S2 allowing scanner or other input into the data stream Optional PC TERM conversion may be enabled on S83 input to allow ASCII devices to communicate with PC TERM Host systems OFF OFF TS OFF S3 no conversion OFF S3 to St full duplex ON S3toS1 amp S2 half duplex ON S3 PC Term conversion cua to S1 OFF Nointercharacterdelay ON Intercharacter delay of 30 mS Issue 1 2 12 92 13 Unique Micro Design DOC M164 UM 2 1 1 PC TERM conversion handshake When PC TERM conversion is invoked software handshak when nabled will use the PC TERM protocol Hardware handshaking operates as normal The Host running PC TERM must be connected to S1 and the terminal to S2 The software handshake only operates f
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