USER'S MANUAL - KVM Switch Direct
Contents
1. SSS EE CONVERTER USER S MANUAL Sexe S3eS20 fF 5X7 32S A Read this guide thoroughly and follow the installation and operation procedures Carefully to prevent any damage to the hub and or any of the devices it connects to This package contains 1 Bidirectional Serial Parallel Converter SXP 320A or SXP 325A 1 AC 9V 200mA Power Adapter 1 User Manual Copyright 1999 ATEN International Co Ltd Manual Part NO PAPE 1145 100 Printed in Taiwan 06 1999 All brand names and trademarks are the registered property of their respective owners Setting the Switches Baud Rate The baud rate is set with DIP Switch segments 1 3 as shown in the table below Baud Rate bits per second OFF OFF 115200 Handshake DIP Switch S t Eola secur Handshake ON XON XO FF O FF Data and Stop Bits DIP Switch t aul a SEJME Data Bits stop Bits a a a ae E EO E Parity DIP Switch t 2 C ae aay Parity Inhibit OFF ON Even Parity O dd Parity ae 4 oS RONIE Table of Contents Overview Features Installation Default Configuration DIP Switch Settings Cabling Operation Appendix Troubleshooting Specifications RS 232C Interface Specification Centronics Interface Specification Centronics Interface Timing Chart Preventing Radio amp TV Interference Conversion Direction DIP Switch ment ts a Swi S segme Conversion Direction OO ON o Parallel to Serial Ser2. de a DB 25 RS 232C DCE compatible connector and a C 36 Centronics connector The serial baud rate Is from 1200 to 115200 bps selectable by DIP Switch The parallel interface speed for the non buffered SXP 320A is 11 52 KB sec for the buffered SXP 325A it is 1 5 MB sec The units support both hardware and software XON XOFF handshaking Setup is extremely easy All that is involved is setting the DIP Switch and connecting the cables Front View PARALLEL PORT POWER ON LED AC 9V JACK SERIAL PORT RESET KEY Parallel to Serial When performing a Parallel to Serial interface conversion 1 Plug the male end of a 25 pin male to C 36 female printer cable into the PC s parallel port 2 Plug the female end of the 25 pin to C 36 male female printer cable into the SXP 320A SXP 325A s Centronics connector 3 Plug the male end of a 25 pin to 25 pin male female serial cable into the SXP 320A SXP 325A s serial connector 4 Plug the female end of the 25 pin to 25 pin male female serial cable into the printer s serial port 5 Plug the Power Adapter into an AC source plug the Power Adapter cable into the SXP 320A SXP 325A s power jack SXP 320A SXP 325A Rear View Features e DIP Switch Sets Data Direction e Built In Buffer for Efficient Operation SXP 325A e Both Hardware and XON XOFF Handshaki
3. ial to Parallel Cabling Serial to Parallel When performing a Serial to Parallel interface conversion 1 Plug the female end of a 25 9 pin to 25 9 pin male female serial cable into the PC s serial port 2 Plug the male end of the 25 pin to 25 pin male female serial cable into the SXP 320A SXP 325A s serial connector 3 Plug the female end of a C 36 to C 36 male female printer cable into the SXP 320A SXP 325A s printer connector 4 Plug the male end of the C 36 to C 36 male female printer cable into the printer Note If your serial cable is long enough you can plug the SXP 320A SXP 325A directly into the printer without the need for a printer cable 5 Plug the Power Adapter into an AC source plug the Power Adapter cable into the SXP 320A SXP 325A s power jack 9 or 25 Pin Female to 25 Pin Male Cable Sl 5 Overview The SXP 320A SXP 325A are interface converters that allow Centronics and RS 232 devices to communicate with each other a computer with an RS 232 output to a Centronics printer for example Both units are bidirectional enabling you to convert from serial to parallel or parallel to serial The primary difference between them is that the SXP 325A is configured with 512 KB of memory allowing it to serve as a printer buffer whereas the SXP 320A has no memory These two way converters provi
4. ng e Easy Installation e Compact Size Installation Switch Configuration Overview The SXP 320A 325A is configured by setting an eight segment DIP Switch as follows Switch Purpose 1 2 Baud rate setting 3 4 Handshake setting Data and Stop Bits setting Parity setting 18 Conversion Direction setting An explanation of each DIP Switch setting is given below Note 1 When the segment is set in the direction of the arrow itis ON 2 In each table the default setting is highlighted a hh Serial Port Cabling Device Connector s Pin Cables SXP 320A SXP 325A a 25 pin 25 pin cable or a 9 pin 25 pin cable TX 0 m RX Rx a TX RTS m CTS CTS a RTS DSR w DTR DTR m DSR GND GND Parallel Port Cabling Device s Pin a 25 pin 36 pinCables SXP 320A SXP 325A DB 25 or a 36 pin 36 pin cable C 36 e D0 D7 a ACK BUSY PE SLCT AUTOFEED XT W ERROR a 2 INIT a SLCT IN J ND
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