PDF User Manual - Antona Corporation
Contents
1. Appendix C 102 21 80 006022 3215 NOISU3N 31415 6 80 4909 229 580 DEBIINO ER onu WNO LNV 58 53 IWIIJAL JOYIYILNI 341M Z XL 310 310438 43TIOYLNO9 3 680 x1 N zr SWT X03 135 89XbYH T 1 ode 99 03441 5 59 89d 30 3OYIYILNI SYIN b dvd 109 5 1 913N09 Y3AY3S gt 8 INANI 20 N 5 SY HOT oT Ty baf z C3LYNIHYIL 313938 Q3LYNIWY3SL LON 313938 3OWEL 109 de 48 a3sn 020 O3ddIHS Sue 53095 5 090 89d 9 NOISY3N 0609 ONY NOILdO JNNYW Y 51 AYLINIYIO LIMXOLNY OY XL 30 TOYLNOD SLY 5178 LN3SW39V1d3e TYNOILONNA 89d Q609 ONY 53257433 894 0 lt 309 2 NIY 3LON 30 YINO 3 680 994 2ezos g ZEZXL 514 ONY LON S58b SY JYIM Z 100 1090 XL IOYLNO9 YLYO 8b SY 3YIM Z H9IH 5199 1 XL TONLNOD 5197 x03ddIHS SUR ONINIZO3Y OL ISN TIIM 9 ONY UIO TOYLNOD 01 35N TIIM 358103 5193135 JLON banco 818 783 4299 S8r SY 3YIM Z 23 HOIH SLY XL 1 LNO YLYO X1 Y3aniY0 OYLNO9 8 54 38IM gt NO SAYVMIY XL 03441 5 502. 14 580 53 3YIM Z MOT 513 25 ON 9Y 2 XL 31150440 94 8 59 3Y1M b NO SAYMIY 5 59 Antona Corporation
3. Electrical Specifications Power requirements 6 ma for short cable non terminated applications 100 ma for long and or terminated cable applications RS 422 485 output drive short proof output non terminated operation to 150 feet terminated operation with external power supply to 4000 feet RS232 output drive short proof output under worse case conditions 5v switching to exceed 3v ElA RS232 specification Antona Corporation 818 783 4299 Adapter Installation Turn off the personal computer and any other remote equipment before performing the adapter installation Never install or remove the adapter with the power applied to the Pc or any of the attached equipment This could result in permanent damage to the adapter due to static discharge Normally the adapter is plugged directly into the serial port male DB 9 jack on the back of the Pc Be sure to look at the label on the adapter to identify and insure that the proper DB9 is plugged into the Pc s serial jack The ANC 6090 has female DB9s at both ends The user should screw the 2 mounting screws into the serial port s hex nuts for permanent installations to assure good long term connection The adapter may be attached to a ribbon cable type extension from the Pc to the Antona adapter This is sometimes useful when the space is limited behind the Pc The ribbon cable extension should not exceed 3 feet A 12 shielded wire cable could also be used Remember that the signal is stil
4. 04V Photo 2 2 wire interface example 4 Wire A 4 wire RS 485 interface uses 2 wires to transmit to all connected peripheral receive data lines and 2 wires connected from all peripheral transmit pairs back to the server s receive wire pair In such an arrangement the server can be transmitting and receiving at the same time full duplex and no polled response protocol or unique device code is necessary resulting in an overall improvement in communication speed Antona Corporation 818 783 4299 10 Appendix Troubleshooting Guide RS232 RS422 RS485 Serial Interfaces Here are the most common sources of interfacing problems and tests you can make to diagnose your interface Loopback Test You can verify that the Antona adapter is working by doing a simple loopback test using a male DB9 connector with a wire connection from pin 3 to 7 and pin 8 to 2 You can also add external power by soldering a 9v battery clip between pin 1 ground and pin9 V Use a simple terminal program to just test that characters sent out the serial port are echoed back through the adapter Make sure that your terminal program is turning on RTS and or DTR to power the Antona adapter and that the program 5 set to control the com port that the adapter is connected to Put the signal control jumpers JP1 2 3 back to default condition they have been moved The adapter operation does not rely on baud rate parity stop bits but the actual applicat
5. sure to verify that the application program either does not rely or use the state of the DCD input pin for operation Antona Corporation 818 783 4299 ANC 6090 External connections Referenced to adapter DB 9 pins DB 9 Pin DCD R Data Carrier Detect 1 Connected via JP7 input to computer LSD to RTS TRANSMIT DATA RS 232 level output output to computer RECEIVE DATA 3 RS 232 level input input from computer DTR Data Term Ready power output from computer GROUND 5 Signal ground I O signal ground Data Set Ready Tied to DTR pin 4 RTS Ready to Send 7 V to power output from computer adapter Clear to Send 8 Tied to RTS pin 7 RI Ring Indicator 9 Not connected DB9 to DB25 pin to pin chart for use of adapter on a DB25 type com port De DIRT OOt ame Deed E Ax TRANSMITDATA 2 3 RS 232 level output TX RECEWVEDATA 3 2 RS 232levelimput DataTermReady 4 20 _ v to power adapter GND GROUND 5 7 _ signalground DSR DataSetReady 6 6 tiedtoDTR pin4 CTS CleartoSend __ 8 5 RI Ring indicator 9 22 Notused RS 422 485 connections to the ANC 6090 For multimedia control interfacing the jumpering of JP5 6 is set for master as shipped A 9 pin male to 9 pin male cable wired pin to pin is used to connect to the multimedia device For other interfaces the user hand wires a 9 pin cable assembly from
6. technology SMT for low power and small size Plug compatible with DB 9 Pc RS 232C serial ports Pin connections on converted RS 422 signal side mate directly to many professional multimedia units SMPTE interface for Sony BTS Grass Valley Ampex etc Overview The ANC 6090 adapter converts the serial port RS 232C level transmit and receive signals on an IBM compatible personal computer Pc or any device with an RS 232C type interface into bipolar current RS 422 or RS 485 compatible signals The adapter interface voltage levels produced meet the ElA 232 TIA 232 RS 422 and RS 485 signals These adapters find wide use in high speed long distance serial communications or to interface a Pc with equipment that uses an RS 422 or RS 485 type input output The adapter is powered by the host system s serial port signal lines the same way a serial port mouse interface is powered For most installations this eliminates the need for an external power supply making this adapter an ideal choice for portable use Extended cable runs and or terminated RS 422 485 connections may require more current than the serial port power can provide so the RS 422 485 connector can accept 3v to 12v regulated DC at 100 milliamps to provide the added power to drive the adapter Mechanical Specifications Adapter case size 2 2 1 2 X 0 5 Connectors Female 9 to Pc serial port Female DB9 to RS 422 485 equipment
7. the RS 422 485 piece of equipment to the Antona adapter with the appropriate pin to signal interface The only difference between the master and server slave version is the jumper positions of JP5 and JP6 within the adapter The electronics are exactly the same only the 2 transmit and 2 receive signal lines are exchanged on the RS 422 485 side of the adapter Antona Corporation 818 783 4299 DB9 RS 422 485 Signals for Master Multimedia Controller ground for RS 422 485 and or external power same function as pin 5 notused SS 4 motused 4 ground for RS 422 485 and or external power same function as pin 1 A Mn 8 RS 422 485 minus side output PV Optional 3V to 12V DC 100ma DB9 RS 422 485 Signals for Client Receive from Master 1 ground for RS 422 485 and or external same function as pin 5 pp 2 TK RS 422 485minussideoutput_ 8 o RC RS 422 485 plus side input O ground for RS 422 485 and or external power same function as pin 1 Pp noted RS 485 Two and Four Wire Interfacing 2 wire Usually a two wire interface with multiple peripherals uses a polled response half duplex software protocol where each device has a unique device code Generally this requires externally powering the Antona adapter but for short cable runs to non terminated equipment operating at medium baud rates like 9600 or less an external powe
8. the RS 422 485 side of the adapter The configuration as shipped from Antona is set for master This configuration is for the adapter acting as a controller to multimedia type equipment with an RS 422 SMPTE interface Figure 1 shows the jumper locations from the component side of the circuit board The user may move all four jumper shunts on the component side of the card from the horizontal controller configuration to the vertical receiver configuration All four shunts must be changed to either all horizontal or all vertical for proper adapter operation 5 SHIPPEDX MASTER CONTROLLER DCE REMOTE DTE figure 2 Tx Rc Pin Reverse Jumpers DCD Drive 7 This 2 pin jumper disconnects the DCD serial port input line from the RTS signal output When not jumpered a small amount of current is saved by not holding the DCD line high when RTS is high RTS is one of the two main power sources for the adapter and is used to control the transmit and receive function in RS 485 type configurations This jumper is enabled when shipped by a short trace between the two jumper pads on the solder side of the PCB If the designer wishes to disconnect the RTS to DCD connection just use an Exacto knife to cut and remove the small trace between the two pads of JP7 Reconnection may be performed by soldering in a small wire through the two pad holes of JP7 See Appendix B the upper middle of the schematic for the location of JP7 Be
9. DTR lines high to power the adapter Usually for multimedia type interfaces the baud rate is 38 4 Kbaud Odd parity 8 data bits and 1 stop bit For many RS 485 multidrop industrial control applications the baud rate is much slower like 9600 no parity 8 data bits and 1 stop bit Here again if the program is not setup right the adapter will appear not to be working at all RS422 485 Equipment Try to verify the operation of the target equipment independent of the Antona adapter by using another setup a different cable connected to another RS422 485 signal generating device would be the best Using a different computer with the Antona adapter would also be a good test Plugged in Backwards The adapter is shipped with a set of jumpers preset for the most common configuration sometimes after a customer has opened the adapter changed some settings to suit their application the adapter s plastic shell will be refitted around the adapter backwards to the label indications This mistake is easy to do as both ends of the adapter have a female DB 9 If in doubt note that the end with the jack nuts is the RS 422 485 end of the adapter We have had adapters returned as broken which were fine except the shell had been put on backward Now What If none of the above seems to fix the problem but the loopback test works the adapter is working and you may now need to connect an oscilloscope up to examine and monitor the RS422 485 signals
10. Rev 1 5 00 6090 RS 422 485 Serial Communications Adapter Antona Corporation Los Angeles CA 8 Antona Corporation 818 783 4299 Antona Corporation Copyright Copyright c 2003 2014 by Antona Corporation All rights reserved No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language any form or by any means electronic mechanical magnetic optical chemical manual or otherwise without the prior written permission of the Antona Corporation of Los Angeles California Warranty Antona Corporation products are warranted to be free from defects in materials and workmanship for a period of one 1 year from the date of original shipment to customer This warranty is limited to the replacement or repair of parts not subjected to misuse neglect unauthorized repair alteration except card options accident or failure due to the effects of static electricity discharge In no event shall Antona Corporation be liable to the purchaser for loss of use profit or consequential damages or damages of any kind including but not limited to accidental loss or damage to other equipment arising out of use of Antona Corporation equipment whether or not said equipment was used properly The designer is responsible for the determining the suitability and use of the product This warranty is in lieu of any ot
11. TS line on the RS 232 side of the adapter lower trace showing RTS signal after being translated to the inverted TTL level within the adapter precedes transmitting the data byte out the TX line upper trace Auto Transmit Source JP2 This jumper is for the autoxmit feature of our ANC 6085 version adapter and is just left in the horizontal position as shipped on the ANC 6090 See Appendix B the lower left hand of the schematic for the location of JP2 Antona Corporation 818 783 4299 Stop Chi 2 00V 2005 A J 1 16V Photo 1 RTS Transmit Operation RTS may also be used to turn on off the receive input lines JP3 below When RTS is used asserting the RS 232 signal low to the adapter enables transmitting while RTS high enables receiving Note that DTR must be set high when RTS is low in order for the adapter to operate when an external power supply is not being used Receive Enable JP3 This 3 pin straight vertical jumper can be set to enable receiving RS 422 485 data always as shipped JP3 set on the lower and middle pin or turned off automatically whenever the transmit driver is set active by RTS JP3 set on the middle and upper pin See Appendix B the middle left hand of the schematic for the location of JP3 On a 2 wire interface if data is being transmitted and the receiver is also enabled anything transmitted will be looped back into the serial port Since the echoed signal is the actu
12. al data that was transferred to the interface cable being able to see the transmitted data echoed back may be of use for testing authenticating diagnostics of data output or determining when RTS can be lowered if used to control transmission Cable Termination JP4 For installation cable lengths greater than 150 feet resister termination across the remote receive pair end of the cable may be necessary The ANC 6090 has 120 ohm termination resister built in that can be placed across the receive wire pair by setting jumper 4 JP4 located over the transmit receive setting jumpers As described above an external DC power source may be feed into pin 9 on the RS 422 485 connector to supply the additional current that the adapter may need when terminating resisters are installed on the receive transmit wire pairs Note that some multimedia equipment have internally connected circuitry for 120 ohm resister termination If So then even if the separation distance is less than 150 feet it may be necessary to provide an external source of DC Some equipment also allows the user to disconnect the internal termination network for short cable runs See Appendix the upper middle of the schematic for the location of JP4 Antona Corporation 818 783 4299 Transmit Receive Pin Reverse Jumpers JP5 JP6 These two jumper sets designated JP5 and JP6 on the circuit board and schematic allow the designer to swap the transmit and receive pairs on
13. and the RS232 signals being generated by the Antona adapter with the plastic cover removed and running with your RS422 device and program Refer to the schematic Appendix B in this manual It is easy to put a scope probe onto the tops of the 4 jumpers JP5 6 and verify that RS422 485 signals are coming and going to the adapter Test the power to the adapter by attaching a probe to the lead of the 22uf capacitor near the 3v regulator Look for excess noise on any of the lines that might be fouling up the transmissions If the loopback test does not work connect a temporary external power supply up to the adapter by using a 9v battery and battery clip wired onto the loopback connector described above Each adapter is tested prior to shipment with every combination of character transmitted and received at 38 4 Kbaud but like everything occasionally they can go bad Of the hundreds we have shipped there have been maybe 10 or so that arrived non operational Damaged in shipping or infant component burnout We do warranty our adapters so if it still does not work call Antona and we will work out an adapter exchange Antona Corporation 818 783 4299 13 IC t Board Schemat This page contains the schematic for the 6090 adapter The schematic and card artwork are copyright protected by Antona Corporation and are included only to aid the end user to configure the adapter or for technical service personnel to use in maintenance or repair
14. and the power supply ground pin is soldered to the pad just above JP4 Figure 1 next page shows the pads as black dots The pad nearest the middle of the card 15 for the voltage Applying voltage to that pad does not provide voltage to pin 9 on the RS422 485 DB 9 connector Some applications may find it useful to have the DC power supply voltage available at pin 9 for powering another Antona adapter or other attached piece of equipment over a short cable run The user would need to remove D6 and short that component s pads to provide power to external to the adapter D6 15 located next to the V pad that has the trace going to pin 9 on the DB 9 Antona Corporation 818 783 4299 1 Figure 1 jumper locations When shipped the ANC 6090 is set for transmit and receive enabled always The output pins are set for master the terminating resister is disconnected and RTS is connected to DCD JP7 All references to horizontal and vertical below are in respect to figure 1 above The schematic gives another view of each jumper showing the settings on isolated block drawings of each jumper function To open the enclosure hood use a small flat blade screwdriver and carefully pry the plastic latches on one side of the enclosure and gently separate the sides slightly about 020 Place a paper clip or coin between the separated sides of the enclosure to keep it from relatching shut while you repeat the process on the two pla
15. beceesdedeesuscessessesecssesdessnseseesecsss 4 External AR 4 Adapter Jumper OptionS ores eee eel Error Bookmark not defined Figure jumper locations 5 Transmit Control Enable JPL s 0 csssccsssssccosscsssssssenscovsesssenssonsscesccsssssesenscesbecnssensconnscsdensesnsecsssnssdseseseosbssecsoeenes 5 Auto Transmit Source UP 2 bass sis scsavisscisssssosssesssecseosseatesestieeseotsensssvnsSvsss gt soeevesevesdeans soencessetoseasessaceesseeosssessvoedoes 5 Photo 1 RES Transit Operations he 6 Receive Enable 22 A A A A 6 Cable Termination gt ceecessescssestvesosensevons eee oN Ee r e SE O ES SES ERES 6 Transmit Receive Pin Reverse Jumpers JP5 JP6 ocoooccoossssiss 7 fig re 2 Tx Re Pin Reverse Jumpers snaren io 7 DED DEVE JP 7 272 02 AE S AT ET E E EE EET EE EE ETT 7 ANC 6090 External CONTCCHONS viii A 8 DB9 to DB25 pin to pin chart for use of adapter on DB25 type 8 RS 422 485 connections to the ANC 6090 scccsssccsssscsssssscssssscssnsscssssccsssaccsssscessnssesssssssssssssssseseseseees 8 DB9 RS 422 485 Signals for Master Multimedia Controller 9 DB9 RS 422 485 Signals for Server Receive from Master 9 RS 485 Two and Four Wire Inter facing cccsccccssscssessccsssscssssccssssccssnsccsssccssssccessac
16. e like plus signal lines and ditto for the negative to the negative signals Try connecting just one piece of equipment to the adapter for debugging both the cabling and the software interfacing Remember that multidropped peripherals must each be assigned a unique device code Check with the specific equipment s User s Manual for setting this along with protocol baudrate character length parity and stop bits Data Direction Jumpers When shipped the Antona adapter is set fora SMPTE MASTER interface Connector pinouts are in this manual for both MASTER and SERVER SLAVE mode so be sure you Antona Corporation 818 783 4299 IT are looking at the correct table You may also want to open the Antona adapter up and verify the jumpers JP5 6 are set for the mode you desire All 4 jumpers should be installed they each represent one of the 4 signals being transmitted and received The Appendix B Schematic shows how and where these jumpers are located Signal Control Jumpers There are three main jumpers JP1 2 3 that control the operation of the signal switching on the ANC 6090 for transmit and receive enabling Double check that you have set the jumpers correctly for your application All three jumpers must be installed for the adapter to work properly and it is possible to have one mis setting cause the adapter to appear non operational Check the adapter jumper settings against the Appendix B schematic left hand s
17. esssecesssecesseeesseeeeees 9 9A a NN 9 figure 3 typical 2 wire RS 485 interface irus redr E I SE eiS cone at et 10 Photo 2 2 wire interface 10 e 2 10 Appendix A Troubleshooting 11 ada 11 CABLING Most COMMON problem lt lt A 11 Pin Signal Definition 4 wire interfaces 11 Multidrop Cabling 2 wire 11 Data Direction JUMPER 11 Signal Control JUMP siii 12 Cable Fermat A A 12 POW CLINE At 12 Program Operation ui a ii a ii reir es 12 22 AA A 13 Plugsed1n Back Wald unas ips 13 eo dR D PET o ADE 13 Appendix Circuit Board Schematic 14 Antona Corporation 818 783 4299 Features Transmit data at distances up to 4000 feet 1219 2 m Baud rates to 1 Mbaud Powered from serial port for most installations 4 wire full duplex or 2 wire half duplex operation RTS low Operate in multidrop multipoint applications RS 485 Jumperable terminate 120 ohms on input Selectable data loopback feature or data echo suppression in 2 wire applications Choice of fixed or RTS high controlled transmit Surface mount
18. her warranty expressed implied or statutory including without limitation any implied warranty or merchantability or fitness for a particular purpose No amendment of this warranty may be effected except in writing by an officer of the Antona Corporation All repair services shall be performed at the Antona Corporation plant in Los Angeles Ca THE PURCHASER MUST OBTAIN A RETURN AUTHORIZATION FROM THE ANTONA CORPORATION PRIOR TO RETURNING ANY PIECE OF EQUIPMENT Shipment to the Antona Corporation will be at the expense of the purchaser return shipment will be at the expense of the Antona Corporation for all warranty repairs Antona products are not suitable for any critical or life support functions Customers may use Antona s products in office or commercial applications where a failure of the Antona product does not precipitate other damages Antona Corporation 818 783 4299 5 A 3 IS 3 Mechanical SpecificatiONS cane cancion dano andado sdensnssindscesed nesesseasesssnss soeesiseseoasases 3 Electrical Specifications 3 Adapter Installation cssccccccccsssecsssvenssesessnoscssvesecsossseonassvensesoossebscesvesscsoodesssceivenscosessoescedsesecetecssdesesennsesieesssesessnnsl 4 Serial Port PO WEL ssisssecssseseesovlessavysscosesusedssavesdvocssevescsatesoacessbencesnsesescaesdeesesdds
19. ide As a baseline restore all jumper settings to the factory defaults shown on the schematic Cable Termination Reflected signal produced by cabling that is not terminated properly will cause data transmission errors A terminated cable matched to the impedance of the cable wire produces the maximum signal transfer and dampens the ringing of a reflected signal If you are using the adapter to interface with one piece of equipment with a short cable run under 150 feet in an electrically clean environment like an office then you probably do not need the cable to be terminated If on the other hand you are using the ANC 6090 to interface with 2 or more RS 485 devices in an industrial environment with hundreds of feet of cable runs terminating both ends of the cable at the end points would be required The adapter has a jumper enabled 120 ohm resister JP4 that takes care of the adapter end of the cable The user must connect a similar resister at the far end of the cable run An unterminated cable will not work generally with long cable runs and baudrates above 2400 baud Externally powering the adapter for such an application would certainly be required The best way to determine if termination is causing your interface not to work is to just enable the ANC 6090 terminating resister and install a 120 ohm resister onto the last piece of RS 485 equipment on the cable Check also that you have not over terminated the cable by having more
20. ion program you are using with the adapter may see PROGRAM OPERATION below CABLING most common problem If one of the interface wires used is not connected open or shorted the whole interface will appear not to be working Try using another cable or try the loopback test described above at the end of the cable to verify operation If you can not get the loopback test to work through the cable it will not work in your application Even cables purchased with molded ends can be damaged We test all of the cables we sell before shipping them out Pin Signal Definition 4 wire interfaces Take a look at the manual of the RS422 485 equipment that you are trying to control Be sure that the pin definition on the equipment tells you the signal names not what they are suppose to connect to This sounds simple but unless you know which direction the pinouts are defined from you will connect TX to TX which is incorrect Make sure that you have the TX on the Antona adapter connected to the RC on the RS422 485 equipment and TX connected to RC same for the signal coming back from the RS422 485 side make sure that the Antona adapter s RC is connected to the TX and that the RC 15 connected to the TX on the RS422 485 side Pin 5 on the Antona adapter s RS422 output side should be connected to the ground of the RS422 485 equipment Multidrop Cabling 2 wire interfaces Check to make sure you have connected the plus signal lines to th
21. l RS 232C level leaving the computer and entering the adapter Also note that if the designer is using DB9 to DB25 adapter an A B selector box or break out box for testing that all 9 pins should be connected through the adapter or test setup The main ANC 6090 adapter power is drawn from the host system s RTS and DTR lines like a mouse interface Serial Port Powering Three of the Pc s serial port RS 232C level signals can be used by the Antona adapter to derive power from RTS DTR and TX The user must therefore insure that the RTS and DTR signals from the Pc s serial port are brought to a high output level 100 ms before communicating over the adapter Usually this is performed once during the user s program initialization When the appropriate jumper 5 set RTS is lowered and raised to transmit and receive respectively for use in 2 wire interfaces External Powering An external 3v to 12v DC power source may be feed into pin 9 on the RS 422 485 DB 9 connector to supply the additional current that the adapter may need The table below RS 422 485 Connections to the ANC 6090 shows the pins for applying an external source of DC to power the adapter There are also two pads on the circuit board you can solder leads to for applying external power A small hole in the plastic case would need to be added to run the power supply leads from the adapter The regulated DC source lead is soldered to the pin located just to the right of JP7
22. r supply may not be needed The designer should use twisted pair wire with a impedance of 100 to 120 ohms Low cost CAT 5 UTP Unshielded Twisted Pair wire works fine The user must externally wire the cable with pin 3 connected to pin 7 TX to RC and pin 8 to pin 2 TX to RC on the RS 485 connector side of the adapter The 2 conductor cable which connects to the outside world is then wired to pin 7 DATA and to pin 2 DATA of the RS 485 compatible peripheral see figure 3 below We offer an ANC CKIT cable kit with all the hardware needed and 25 feet of CAT 5 UTP wire for this application Antona Corporation 818 783 4299 TIPICAEIR STAS figure 3 typical 2 wire RS 485 interface The photo below photo 2 shows a typical transmission and reception over an RS 485 2 wire interface The top trace shows the data transmitted from the ANC 6090 with a scope probe on the TX RC combined line The 2 group of noisy looking characters is the response received from remote device about 4 ms after the last character is sent through the ANC 6090 The lower trace 2 shows the RS 232 level signal on pin 2 of the RS 232 DB 9 going back to the Pc after being cleaned up by the adapter and converted back into a bipolar signal The 9600 baud data depicted being transmitted and received is through a MODCOM protocol based polled response type industrial controller mm 2 00v Ch2 10 0Y 2 00 5 A Chi Y 2
23. stic latches on the other side of the hood The two sides of the hood should now come apart The computer side mounting screws are loose within the enclosure so be careful of these small parts To reassemble the enclosure hood back around the adapter electronics place the circuit board into the enclosure half that designates signal direction with the RS 422 485 connector the DB 9 connector that has the jackscrews on the arrowed end pointed to by the small RS422 designation Now place the small screws back into position on the RS232 or computer side DB 9 Double check that the hood labeled with which end is RS 232 and RS 422 is properly oriented before pushing the sides together and relatching the plastic shells Remember the RS 422 end of the adapter is the end with the jack nuts mounted onto the female DB 9 connector Transmit Control Enable JP1 For single adapter 4 wire setups where the ANC 6090 is controlling one piece of equipment JP1 can be set in the horizontal position as shipped so that the transmit data RS 422 485 driver lines are always asserted For battery powered applications it may be desirable to turn off the transmit drivers to save current when there is no data being transmitted using the RTS control line When using the RTS signal to control the driver output the vertical position should be set See Appendix B the middle left hand of the schematic for the location of JP1 The photo 1 below shows how lowering the R
24. than two resisters installed other than one at each end of the cable run Access one end of the cable and use a multimeter set to the 200 ohm scale You should measure about 60 ohms if there are two 120 ohm resisters in parallel across the cable you are using multiple Antona adapter s only one at each end of the cable should have JP4 enabled Likewise check any other piece s of equipment on the cable to make sure if they contain termination resisters that only one of them is enabled at the end of the cable Powering Be sure that the RTS and or DTR line on your RS232 interface are high this is what powers the Antona adapter like a mouse interface Some portable computers just do not have enough power to run the adapter and or the RS422 485 piece of equipment you are interfacing Or it may be over a long cable run and or terminated with a 120 ohm resister You can try disconnecting the termination resister also some types of equipment like the ANC 6090 give you a jumper option JP4 for enabling the termination resister It might be necessary to externally power the adapter through the RS422 485 side by applying 3v to 12v DC power to pin 9 and ground to pin 5 or 1 Program Operation The application program you are using may need some setup performed selecting the serial com port baud rate parity number of data bits stop bits and setting the level of the Antona Corporation 818 783 4299 12 handshaking signals RTS
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