USER MANUAL
Contents
1. Materials Authorization number on the outside of the shipping contain er This number may be obtained from Patton Electronics Technical Service 301 975 1007 http www patton com or support pat ton com NOTE Packages received without an RMA number will not be accepted Patton Electronics technical staff is also available to answer any questions that might arise concerning the installation or use of your Model 2023 Technical Service hours 8AM to 5PM EST Monday through Friday 2 0 GENERAL INFORMATION Thank you for your purchase of this Patton Electronics product This product has been thoroughly inspected and tested and is warrant ed for One Year parts and labor If any questions arise during installa tion or use of the unit contact Patton Electronics Technical Support 301 975 1007 http www patton com or support patton com 2 1 FEATURES e Converts serial data to parallel data e Built in 16 bit buffer prevents loss of data e Supports both XON XOFF and hardware flow control e Data rates to 19 2 Kbps e No AC power required e DCE DTE switch selectable e Small and easy to install e Complete with 6 feet of cable and a Centronics connector e Made in USA 2 2 DESCRIPTION The Model 2023 Serial to Parallel Converter converts RS 232C serial data to parallel data An internal strapping option facilitates hardware or software flow control by converting the parallel BUSY sig nal to the relevant signal on the ser2. and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio and tele vision reception The Model 2023 has been tested and found to com ply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules which are designed to provide reasonable protection from such interference in a commercial installation However there is no guarantee that interfer ence will not occur in a particular installation If it does cause interfer ence to radio or television reception which can be determined by dis connecting the RS 232 interface the user is encouraged to try to cor rect the interference by one or more of the following measures mov ing the computing equipment away from the receiver re orienting the receiving antenna and or plugging the receiving equipment into a differ ent AC outlet such that the computing equipment and receiver are on different branches 1 2 CE NOTICE The CE symbol on your Patton Electronics equipment indicates that it is in compliance with the Electromagnetic Compatibility EMC directive and the Low Voltage Directive LVD of the Union European EU A Certificate of Compliance is available by contacting Patton Technical Support 1 3 SERVICE All warranty and nonwarranty repairs must be returned freight pre paid and insured to Patton Electronics All returns must have a Return
3. eee g 3 au 4 TE z Q 0 H Oo 4 EAE a e Ao OIL q l ip P rti p u 9 a uP oF A O sl u 4 m B E WB He ee e 44 a Hege T a8 wo 2 g om a ee 2 ge g J2 E J a4 A an 3 E bee BES z gal ea a Pees 3 2 3 aa i 7 ree ae los E aL EE 4 1 iS e i al RRBRRERRR OOS 5 GE E oF ooroanon F L g 4 Copyright Patton Electronics Company All Rights Reserved
4. Dear Valued Customer Thank you for purchasing Patton Electronics products We do appreciate your business I trust that you find this user manual helpful We manufacture one of the widest selections of data communica tions products in the world including CSU DSU s network termination units powered and self powered short range modems fiber optic modems interface converters baluns electronic data switches data line surge protectors multi plexers transceivers hubs print servers and much more We produce these products at our Gaithersburg MD USA facility and can custom manufacture products for your unique needs We would like to hear from you Please contact us in any of the following ways to tell us how you like this product and how we can meet your product needs today and in the future Web http www patton com Sales E mail sales patton com Support E mail support patton com Phone Sales 301 975 1000 Phone Support 301 975 1007 Fax 301 869 9293 Mail Patton Electronics Company 7622 Rickenbacker Drive Gaithersburg MD 20879 USA We are committed to a quality product at a quality price Patton Electronics is BABT and ISO 9001 certified We meet and exceed the high est standards in the industry CE UL etc It is our business to serve you If you are not satisfied with any aspect of this product or the service provided from Patton Electronics or its distributors please let us know Thank you Bur
5. Model 2023 in a DOS environment please follow the software set up instructions in Section 4 1 below 4 1 DOS SOFTWARE SET UP To use the Model 2023 in a standard DOS application you will need to set up the serial COM port on the computer Make sure the COM port configuration and the Model 2023 configuration are the same To do this you can refer to your DOS manual or see the sum mary below From C gt Mode Comn baud parity data bits stop bits P where n 1 or 2 COM port 1 or 2 baud 300 600 1200 2400 4800 9600 parity Either N none O odd or E even default E data bits Either 7 or 8 default 7 Note Graphics files require 8 stop bits Either 1 or 2 default 1 P Indicates that the COM port is being used for a printer If you enter P time out errors will be continuously retried The following command sets the COM1 for the default configuration of the Model 2023 C gt MODE COM1 96 N 8 1 P Note If your PC or output device requires a different software set up consult the user manual or call Technical Support at 301 975 1007 APPENDIX A PATTON MODEL 2023 SPECIFICATIONS Serial Interface Serial Data Rates Data Format Parity Parallel Interface 6 foot Power Temperature Altitude Humidity Physical Asynchronous RS 232C compatible DB 25 female DCE DTE switch selectable 300 600 1200 2400 4800 9600 19200 bps Strap selectable 7 or 8 b
6. ar to Send input to the 2023 power supply Data Set Ready input to the 2023 power supply Signal Ground Carrier Detect input to the 2023 power supply Input to the 2023 power supply Used for hardware flow control connected to pin 20 Used for hardware flow control connected to pin 20 Data Terminal Ready input to the 2023 power supply ON high when parallel BUSY lead is low OFF low when parallel BUSY lead is high Note These power inputs are not required for operation 8 APPENDIX C PATTON MODEL 2023 PARALLEL PORT CONNECTIONS Pin Name Description 1 Strobe Output normally high goes low to read in data on power up 2 Data bit 0 Output 3 Data bit 1 Output 4 Data bit 2 Output 5 Data bit 3 Output 6 Data bit 4 Output 7 Data bit 5 Output 8 Data bit 6 Output 9 Data bit 7 Output 10 Acknowledge Input normally high goes low to shift next byte out of the buffer 11 Busy Input normally low goes high when buffer is full goes low when buffer empties 16 Ground 17 Ground 19 Ground 30 Ground 33 Ground 36 Ground Note These power inputs are not required for operation APPENDIX D PATTON MODEL 2023 BLOCK DIAGRAM Hu aty a A 29 5 1G F Ae Ke A u BE lg hig A e ORBRERERS bar ee fact a T 4 eu Q 4 oe i E 2 i Zee
7. ial interface It supports serial data rates to 19 2 Kbps and requires no AC power For easy configuration the Model 2023 features a convenient set of configuration switches which allows you to control data rate parity data bits and flow control The Model 2023 is also DCE DTE switch selectable Housed in an ultra miniature ABS plastic case the Model 2023 measures only 4 17 x 1 73 x 87 The Model 2023 comes standard with a DB 25 female connector on the computer side a Centronics 36 pin male connector on the printer side and a 6 foot connector Custom connectors and cable lengths are also available 3 0 CONFIGURATION The Model 2023 is equipped with internal jumpers for data config uration rate selection and method of handshaking to be used The jumper options are summarized in Figure 1 below See Table 1 for a description of the factory settings Data Configuration Data Rate Jumper Jumper Flow Control Jumper Serial DB 25 Connector DCE DTE Switch Figure 1 The Location of the Patton Model 2023 Configuration Switches 3 1 ACCESSING JUMPERS AND SWITCHES To gain access to the internal jumpers remove the four screws on the plastic casing and pull the case halves apart Be careful not to lose the four case screws or the captive screws 3 2 SETTING THE DCE DTE SWITCH The internal DCE DTE switch shown below allows the Model 2023 to plug directly into a DB 25 serial interface port without use of a cr
8. its one stop bit Strap selectable enable disable even odd Centronics compatible 36 pin male connector attached to the end of a cable Uses power from RS 232C interface no external power required 0 60 C 32 140 F Up to 3000m 10 100 feet 5 to 95 non condensing 4 17 x 1 73 x 0 87 APPENDIX B PATTON MODEL 2023 SERIAL PORT CONNECTIONS DCE SETTING Pin Name 1 FG 2 TXD 3 RXD 4 RTS 5 CTS 6 DSR 7 SG 8 cD 9 V 11 19 20 DTR DTE SETTING Pin Name 1 FG 2 TXD 3 RXD 4 RTS 5 CTS 6 DSR 7 SG 8 cD 9 V 11 19 20 DTR Description Frame Ground Serial Transmit Data data input from serial port input to the 2023 power supply Serial Receive Data sends XON XOFF to serial port Request to Send input to the 2023 power supply Clear to Send used for hardware flow control ON high when parallel BUSY lead is low OFF low when parallel BUSY lead is high Data Set Ready used for hardware flow control connected to CTS line pin 5 above Signal Ground Carrier Detect pulled to V when powered up Input to the 2023 power supply Input to the 2023 power supply connected to pin 20 Input to the 2023 power supply connected to pin 20 Data Terminal Ready input to the 2023 power supply Description Frame Ground Serial Transmit Data sends XON XOFF to serial port Serial Receive Data data input from serial port input to the 2023 power supply Request to Send pulled to V when powered up Cle
9. ns off an XON command is sent to allow the serial port to con tinue transmitting Strap Identity Function Possible Settings Factory Setting Data Bits Matches number of data 7 bits to the printer 8 8 bits Parity Determines parity usage EN DIS Disable EVEN ODD Even Data Rate Matches the speed of the 300 2023 to that of serial input 600 device 1200 2400 4800 9600 9600 19200 Flow Control Enables CTS DSR control H Hardware Hardware or XON XOFF flow control S Software NOTE Unit is hardwired for one stop bit NOTE With the jumper removed from the flow control pins both Hardware and Software flow control are operative i e XON XOFF is sent as well as normal control of the CTS DSR control lines This mode is not recommended for most operations Table 1 Factory Strap Settings 5 4 0 INSTALLATION After configuring the Model 2023 align the case halves and replace the four case screws Then plug the DB 25 connector in the case into the serial port of your RS 232 device and tighten the brass screws for a secure connection Next plug the Centronics connector on the cable end into your parallel printer and fasten the bail latches to the corresponding ears Once connected to the proper interface ports the Model 2023 is ready to operate Since the Model 2023 derives power from the serial interface there is no power switch to turn on and no AC adapter to plug in If you are using the
10. ossover cable When connecting the Model 2023 to a PC terminal or other DTE set the DCE DTE switch to DCE When connecting the Model 2023 to a modem or multiplexer set the DCE DTE switch to DTE Refer to Appendix B amp Appendix C for specific DCE DTE pin designations DCE JE DTE Figure 2 Close up of the Patton Model 2023 DCE DTE Switch 4 3 3 SETTING THE JUMPERS Data Bits Set the jumper to match the data bit configuration on your serial communication port Parity Parity bits are sometimes used to enable a limited error detection scheme Set the EN DIS jumper to ENABLE if your serial communication port uses a parity bit and to DISABLE if it does not Set the ODD EVEN jumper according to your system s requirements Data Rate Most PC serial communication ports can operate at speeds up to 9600 bps Match the data rate to the COM port bit rate Hardware Flow Control In DCE mode when the BUSY line pin 11 from the parallel port goes high CTS pin 5 and DSR pin 6 on the serial port go low this stops the flow of data After the buffer empties the BUSY line goes low and CTS and DSR go high This allows the serial port to send data In DTE mode pins 11 19 and 20 are used for hardware flow control Software Flow Control In DCE mode whenever BUSY pin 11 on the parallel interface goes high for more than 5 mSec an XOFF command is sent to the serial port to stop data flow When the BUSY line tur
11. ton A Patton Executive Vice President P S Please tell us where you purchased this product USER MANUAL MODEL 2023 Serial to Parallel Interface Converter pE PATTON 3 Flectronics To Iso Part 07M2023 C SALES Cree Doc 020111UC 301 975 1000 gies Revised 08 12 99 TECHNICAL SUPPORT 301 975 1007 An ISO 9001 http www patton com Certified Company 1 0 WARRANTY INFORMATION Patton Electronics warrants all Model 2023 components to be free from defects and will at our option repair or replace the prod uct should it fail within one year from the first date of shipment This warranty is limited to defects in workmanship or materials and does not cover customer damage abuse or unauthorized modifi cation If this product fails or does not perform as warranted your sole recourse shall be repair or replacement as described above Under no condition shall Patton Electronics be liable for any damages incurred by the use of this product These damages include but are not limited to the following lost profits lost savings and incidental or consequen tial damages arising from the use of or inability to use this product Patton Electronics specifically disclaims all other warranties expressed or implied and the installation or use of this product shall be deemed an acceptance of these terms by the user 1 1 RADIO AND TV INTERFERENCE The Model 2023 generates and uses radio frequency energy
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