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AC7A/B USER’S GUIDE

Form 0233-160920—September 2016

43044 Business Park Drive

•

Temecula

•

CA 92590-3614

Phone: 800-321-OPTO (6786) or 951-695-3000

Fax: 800-832-OPTO (6786) or 951-695-2712

www.opto22.com

Product Support Services

800-TEK-OPTO (835-6786) or 951-695-3080

Fax: 951-695-3017

Email: [email protected]

Web: support.opto22.com

Содержание AC7A

Страница 1: ...iness Park Drive Temecula CA 92590 3614 Phone 800 321 OPTO 6786 or 951 695 3000 Fax 800 832 OPTO 6786 or 951 695 2712 www opto22 com Product Support Services 800 TEK OPTO 835 6786 or 951 695 3080 Fax...

Страница 2: ...1142245 Japanese Patent No 2002535925A German Patent No 60011224 Opto 22 FactoryFloor groov Optomux and Pamux are registered trademarks of Opto 22 Generation 4 groov Server ioControl ioDisplay ioMana...

Страница 3: ...and C 13 Connecting the AC7A B to the Optomux Network 14 Apply AC Power 15 Communication LEDs 15 Installing the AC7A B for use with devices other than Opto 22 s Optomux I O 16 Overview 16 Equipment R...

Страница 4: ...iption 30 Setup 31 Biasing 31 Termination 31 Wiring and Related Jumpers 31 Additional Jumpers 31 Commonly Used RS 232 Signals 32 Using Protective Ground on AC7A B 33 Biasing and Terminating RS 422 485...

Страница 5: ...protective enclosure not included The converter operates as a full duplex device with transmission speeds up to 38 400 baud for distances up to 5 000feetusingtwotwistedpairsandagroundwire Only REVL bo...

Страница 6: ...ewerAC7A B scanoperateatupto115 200baud Themaximumdistancefor 115 200baudrateis3 000feet Note See the solder non component side of the circuit board for the revision number An example is 001782L where...

Страница 7: ...RS 422 485 Interface Screw terminals or 9 pin DB 9 female connector Baud Rate Up to 38 400 baud 115 200 baud in Rev L and later RS 232 Distance Up to 50 feet RS 422 485 Distance Up to 5 000 feet at 38...

Страница 8: ...rmation pleasesee AdditionalTechnicalInformation EQUIPMENT REQUIRED FOR INSTALLATION Mediumsizeflat bladescrewdriver Wirestripper Varietyofcolor codedwiresandcables 22or 24gaugetwisted paircableforcom...

Страница 9: ...kedAC onewireperterminal ThepolarityoftheACpowerwireswithrespecttothe ACscrewterminalsonthepowerconnectoroftheAC7A Bdoesnotmatter If using a standard 3 conductor power cord with a three pronged plug i...

Страница 10: ...e 2 3 Standard Straight Through 25 Pin to 25 Pin RS 232 Cable Figure 2 4 Standard Straight Through 9 Pin to 25 Pin RS 232 Cable ItisalsopossibletomakeyourowncableforconnectionsbetweentheAC7A BandanRS...

Страница 11: ...RS 232 Cable made by user Figure 2 6 9 Pin to 25 Pin 3 Wire RS 232 Cable made by user Note Some serial cables that look like standard straight through cables are actually null modem cables The wiring...

Страница 12: ...npin2ononeendofthecableandpin2ontheotherend Thesetwopinsaretiedtogetheronastandard 25 pinto25 pinstraight throughcable Ina25 pinto25 pinnull modemcable pin2ofoneendistiedtopin3of theotherend Ifyouhave...

Страница 13: ...llasrouting options for other pins Detailed information about this is covered later in this manual in Additonal Technical Information If you are using a standard straight through cable to connect the...

Страница 14: ...n9 screw terminalRS 422 485connector GroupBisonthe left and group C is on the right If the AC7A B is being used in a standard Optomux network in either repeat or multidropmode installthejumpersasshown...

Страница 15: ...quipment Thethirdpairoftwistedwireconnects theLOGICGNDterminalontheAC7A BtotheCOMterminaloftheOptomuxdevice Finally theshieldofthethree pairsoftwistedwireshouldbetiedtoearthgroundatonlyoneofitstwoends...

Страница 16: ...when the AC7A B is receiving data into its RS 485 port i e data is entering theRS 485portandexitingtheRS 232port RX RS 232 AC7A B RS 422 485 The RTS Request to Send LED will turn on when the AC7A B is...

Страница 17: ...D FOR INSTALLATION Mediumsizeflat bladescrewdriver Wirestripper Varietyofcolor codedwiresandcables 22or 24gaugetwisted paircableforcommunicationcables 18gaugeforpowerconnections MOUNTING THE AC7A B Th...

Страница 18: ...AC one wire per terminal The polarity of the AC power wires with respect to the AC screw terminalsonthepowerconnectoroftheAC7A Bdoesnotmatter If using a standard 3 conductor power cord with a three pr...

Страница 19: ...ndard straight throughcable Figure3 4showstheconnectionsbetweenanAC7A Badaptercardanda9 pinRS 232 serialportusingastandardstraight throughcable Figure 3 3 Standard Straight Through 25 Pin to 25 Pin RS...

Страница 20: ...in 3 Wire RS 232 Cable made by user Figure 3 6 9 Pin to 25 Pin 3 Wire RS 232 Cable made by user Note Some serial cables that look like standard straight through cables are actually null modem cables T...

Страница 21: ...s is given in Additional Technical Information The terms Transmit and Receive for these two pins both apply from the computer s point of view SETTING THE AC7A B RS 232 JUMPERS FIRST GROUP NEAR THE 25...

Страница 22: ...traight Through RS 232 Cable IfyouareusingaNULLmodemcabletoconnecttheAC7A BtoyourPC youwillneeddifferentjumpersettings ThejumpersettingsforaNULLmodemcableconnectinganAC7A BtoaPC aDTERS 232port areshow...

Страница 23: ...InstalljumpersA D E andGontheAC7A B RemovejumpersB C F and H on the AC7A B If you are using a three wire TX RX and GND RS 232 cable and the RS 232 device does not require hardware flow control but the...

Страница 24: ...Jumpers A through H Schematic SETTING THE AC7A B RS 422 485 JUMPERS GROUPS B AND C Thesetwojumpergroupsarelocatedabovethegreen9 screw terminalRS 422 485connector GroupBisonthe left and group C is on t...

Страница 25: ...12 5pF ft Thefirstpairofwiresisusedforthetransmitline Thesecondpairofwiresisusedforthereceiveline Thethirdpair ofwiresisusedtoconnecttheLOGICGNDoftheAC7A BtotheCOMterminaloftheRS 485device Finally th...

Страница 26: ...4 wireRS 422 485mode Inthe4 wiremodeusestwo twisted pairsofwiring fourconductorstotal areusedforcommunication In4 wiremode onetwisted pairofwiresisusedforthetransmitsignalandtheothertwistedpairofwires...

Страница 27: ...theRS 232portandexitingtheRS 422 485port TX RS 232 AC7A B RS 422 485 TheRX Receive LEDwillflashwhentheAC7A BisreceivingdatatoitsRS 422 485port i e dataisenteringthe RS 232portandexitingtheRS 422 485po...

Страница 28: ...22 485devicethattheAC7A Bwouldliketo senddata RTS AC7A B RS 422 485 TheCTS CleartoSend LEDwillturnonwhentheAC7A BisreceivingaCTSsignalfromanother RS 422 485device ThereceivedCTSsignaltellstheAC7A Btha...

Страница 29: ...sistoensure that DTR pin 20 on the AC7A B s RS 232 connector is not connected If you are using a 25 pin port on the PC thenyou llneedtomakethesethreeconnections Figure 4 1 25 Pin RS 232 Cable for AC7A...

Страница 30: ...eAC7A Basshownbelow Theshadedareasindicatewherejumpers needtobeplaced Figure 4 3 Three Sets of AC7A B Jumpers Finally connectFO toTO andFO toTO ontheAC7A Basshownbelow Figure 4 4 Connecting the AC7A B...

Страница 31: ...theAC7A BRS 422 485transmitter isonlyconnectedtoOptomuxbrainreceivers ThismeansthattheAC7Atransmittercanbeusedwiththedefault configurationofbeingRS 422 ThisconfigurationdoesnotbiastheRS 422link andthe...

Страница 32: ...donlybeinstalledonone AC7A Bonthelink theyshouldberemovedforallotherAC7A Bsonthelink Termination Be sure to apply termination at both ends of the RS 485 link When the AC7A B is configured for 2 wire R...

Страница 33: ...haped DB 25 connectorthatisusedbytheAC7A B A 9 pin connector DB 9 which was first used on the IBM PC AT is also found on many computers The most commonlyusedRS 232signalsaregivenbelow alongwiththeirpi...

Страница 34: ...orDIGITALOFF UnlikeRS 232 RS 485allowsmorethanonetransmitter and or receiver on a single data line These two characteristics are the reason that biasing and termination are requiredonanRS 485communica...

Страница 35: ...lreadyaccomplishedatsomeotherpointontheRS 485line thenthebiasingresistorjumpers shouldberemovedontheAC7A B Insummary anRS 485communicationlinemustbeterminatedatbothendsbyhavingaterminatingresistorplac...

Страница 36: ...stingpurposes temporarilydisconnectanyRS 422 485wiringfromtheAC7A B Next temporarily connecttheTO terminaltotheFO terminal ThentemporarilyconnecttheTO terminaltotheFO terminal Thiswillcreatealoopbackc...

Страница 37: ...sed DTR anabbreviationforDataTerminalReady Thisisanoutputfromthecomputeranditmeansthatthe computerispoweredup andreadytocommunicatewithanotherdevice GND anabbreviationforGroundorLogicGround RD anabbre...

Страница 38: ...erthantheshield forthecommon Four Pair BeldenP N8104 withoverallshield BeldenP N9728 individuallyshielded BeldenP N8164 individuallyshieldedwithoverallshield ManhattanP NM3477 individuallyshieldedwith...

Страница 39: ...38 AC7A B User s Guide APPENDIX A Figure A 1 AC7A B DB9 J2 Connection Pinout APPENDIX A...

Страница 40: ...o22 com When calling for technical support be prepared to provide the following information about your system to the ProductSupportengineer Softwareandversionbeingused Controllerfirmwareversion PCconf...

Страница 41: ...695 3095 www opto22 com Inside Sales 800 321 OPTO Product Support 800 TEK OPTO 951 695 3080 Fax 951 695 3017 Email sales opto22 com Form 1335 050601 2004 2005 Opto 22 All rights reserved All trademar...

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