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ATEN IC-485AI, User Manual

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ATEN IC-485AI User Manual Download Page 23

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Troubleshooting

Symptom

Action

Data Transmission
Failure

Check that IC-485AI units are securely 
plugged into the computers’ serial ports.

Check that the cables are properly set up 
and properly connected.

Check that SW1 and the DIP Switch are set 
properly.

Insert terminal resistors according to the 
information given on p. 13

Data Loss or Error

Check that the Data Rate and Data Format 
are the same for all devices.

Insert terminal resistors according to the 
information given on p. 13

Summary of Contents for IC-485AI

Page 1: ......

Page 2: ...rference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures...

Page 3: ...support aten com Email Support support aten com Online Support Technical Support http support aten com Troubleshooting Documentation Software Updates http www aten com Email Support support aten usa...

Page 4: ...Telephone Support For telephone support call this number International 886 2 8692 6959 China 86 400 810 0 810 Japan 81 3 5615 5811 Korea 82 2 467 6789 North America 1 888 999 ATEN ext 4988 1 949 428 1...

Page 5: ...and follow the installation and operation procedures carefully to prevent any damage to the unit and or any of the devices connected to it Features may have been added to the IC485AI since this manual...

Page 6: ...g distance data communications systems using standard computer hardware The IC 485AI provides Point to Point Multidrop and Simplex operations over distances of up to 1200 m 4000 ft Designed with built...

Page 7: ...lled high TxD Flashes when data transmission occurs 2 RS 422 RS 485 Terminal Block 3 Grounding Tab 4 DCE DTE Selection Switch If the IC 485AI is going to be plugged into a DTE device the switch must b...

Page 8: ...8 Bottom View 1 DIP Switch This eight segment DIP Switch located on the unit s bottom panel is used to configure the switch s operating parameters 1...

Page 9: ...you change any of the DIP Switch settings you must reset the device by powering it off then powering it on again SW 1 3 Baud Rate Note 1 The Baud Rate must be the same for all units on the installati...

Page 10: ...unit operates as an RS 422 or RS 485 converter As an RS 422 converter SW8 determines whether the unit is configured for Primary or Secondary operation As an RS 485 converter SW8 determines whether the...

Page 11: ...5AI units There are two configurations Point to Point Full Duplex and Point to Point Half Duplex 1 Point to Point 4 Wire Full Duplex Point to Point Full Duplex uses reverse four wire cabling as shown...

Page 12: ...Auto Send Data Mode see p 15 for RS 485 operation details Multidrop A Multidrop configuration is one in which more than two devices are linked for communication using several IC 485AI units One of th...

Page 13: ...for DTE and vice versa For the Primary unit set SW7 ON set SW8 ON RS 422 Primary mode For all of the Secondary units set SW7 ON set SW8 OFF RS 422 Secondary mode Note 1 No more than 31 Secondary unit...

Page 14: ...into if it will plug into a DCE device configure it for DTE and vice versa For all of the units set SW7 and SW8 according to the table on p 9 to configure each unit s RS 485 operating mode see p 10 f...

Page 15: ...abling to link all the connected IC 485AI units as shown in the figure below For all IC 485AI units set the unit to DCE or DTE depending on what type of device the IC 485AI will plug into if it will p...

Page 16: ...or straight through configuration according to the information provided in the Switch Configuration and Operating Modes sections Note 1 When tightening the terminal connector screws it is recommended...

Page 17: ...erminal blocks of the two units at each end of the installation RS 485 Half Duplex Note When the distance between both ends of the installation is large and or the transmitted signals aren t stable in...

Page 18: ...ch to the opposite of the terminal 2 Set all DIP Switch segments to ON 3 Connect one wire from Tx 1 to Rx 4 connect a second wire from Tx 2 to Rx 3 4 Set the terminal to Full Duplex 5 Set the baud rat...

Page 19: ...C 485AI operates in RS 485 RTS Control Mode when both SW7 and SW8 are set to OFF In this mode RTS is pulled high when the computer makes a request to send data Start RTS 0 Send RTS 1 Send Data Complet...

Page 20: ...n order to prevent more than one signal on the line If the the bus line is busy CTS is pulled high and the IC 485AI will not send data to the bus line If the bus line is determined to be idle CTS is p...

Page 21: ...8 8 CD 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 SCD 12 12 13 13 SCS 13 13 14 14 STD 14 14 15 15 TC 15 15 16 16 SRD 16 16 17 17 RC 17 17 18 18 18 18 19 19 SRS 19 19 4 4 20 20 DTR 20 20 21 21 SQD 21 21...

Page 22: ...lock RS 422 RS 485 1 x Grounding Tab Function Switches Slide Switch DCE DTE Select DIP Switch Segment 1 3 Baud Rate Segment 4 Reserved Segment 5 6 Data Format bits Segment 7 8 RS 422 RS 485 Select Cab...

Page 23: ...heck that the cables are properly set up and properly connected Check that SW1 and the DIP Switch are set properly Insert terminal resistors according to the information given on p 13 Data Loss or Err...

Page 24: ...repair service without charge during the Warranty Period If a product is detective ATEN will at its discretion have the option to 1 repair said product with new or repaired components or 2 replace th...

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