Related Manuals for Antona ANC-6185 Series
Summary of Contents for Antona ANC-6185 Series
- Page 1 Rev. C $ 5.00 ANC - 6185 RS-485/422 Serial Communications Adapter Antona Corporation, Los Angeles, CA ANC-6185T ANC6185R Antona Corporation (818)783-4299...
- Page 2 (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.
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Page 3: Table Of Contents
Pin Signal Definition (4-wire interfaces) ..........................12 Multidrop Cabling (2-wire interfaces) ..........................12 Data Direction Jumpers................................13 Signal Control Jumpers.................................13 Cable Termination ................................13 Powering ....................................13 Program Operation................................14 RS422/485 Equipment................................14 Now What?....................................14 APPENDIX B – TRANSMIT / RECEIVE LEDS ........................15 APPENDIX C -CIRCUIT BOARD SCHEMATIC .........................16 Antona Corporation (818)783-4299... -
Page 4: Features
RS-485/422 output drive= short proof output, non-terminated operation to 150 feet, terminated operation with external power supply to 4,000 feet. RS232 output drive=short proof output, under worse case conditions, ±5v switching to exceed ±3v EIA RS232 specification Antona Corporation (818)783-4299... -
Page 5: Adapter Installation
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. -
Page 6: Adapter Jumper Options
‘start’ bit, circuitry on the ANC-6185 will detect and turn on the transmit RS-485/422. The photo below shows how a RS-232 character being transmitted (top trace) triggers the transmit driver enable line (lower trace) to perform the auto Antona Corporation (818)783-4299... -
Page 7: Photo 1 - Auto Transmit Operation
‘looped-back’ into the serial port. Since the echoed signal is the actual data that was transferred to the interface cable, being able to see the transmitted data echoed back may be of use for testing, authenticating or diagnostics of data output. Cable Termination - JP4 Antona Corporation (818)783-4299... -
Page 8: Tx - Rx Pin Reverse Jumpers - Jp5/Jp6
RS-485/422 piece of equipment to the Antona adapter using either discrete wires (T version) or a male RJ-45 (R version). The only difference between the master and server setting is the jumper positions of JP5 and JP6 within the adapter. -
Page 9: Dcd Drive - Jp7
Data Set Ready Tied to DTR (pin 4) input to computer Ready to Send power output from computer adapter Clear to Send Tied to RTS (pin 7) input to computer Ring Indicator Not connected input to computer Antona Corporation (818)783-4299... -
Page 10: Db9 To Db25 Pin To Pin Chart - For Use Of Adapter On Adb25 Type Com Port
IDENTIFICATION Block (T) Optional +3V to +12V DC @ 100ma RS-485/422 plus side input RS-485/422 minus side input RS-485/422 plus side output RS-485/422 minus side output GROUND ground for RS-485/422 and/or external power -not used- -not used- Antona Corporation (818)783-4299... -
Page 11: Interface Wiring
‘AutoXmit’ adapter feature. The top trace shows the data transmitted from the ANC-6185 with a scope probe on the TX+/RC+ (+DATA) combined line. The 2 group of noisy looking characters is the response received from a remote device about 4 ms after the last character is sent Antona Corporation (818)783-4299... -
Page 12: Photo 2 - 2-Wire Interface Example
Only one connected client device can transmit at a time, so software must determine if two or more devices have transmitted at the same time (collisions - detected as receive errors) and then signal the clients to defer the transmissions by different delay times. Antona Corporation (818)783-4299... -
Page 13: Appendix A - Anc-6185 Troubleshooting Guide
If you use a different terminal program, make sure that it is turning on RTS and/or DTR to power the Antona adapter, and that the program is set to control the serial port that the adapter is connected to. The adapter operation in loopback does not rely on baud rate, parity, stop bits - but the actual application program you are using will (see PROGRAM OPERATION below). -
Page 14: Data Direction Jumpers
You should measure about 60 ohms if there are two 120 ohm resisters in parallel across the cable. If 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. -
Page 15: Program Operation
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. -
Page 16: Appendix B - Transmit / Receive Leds
Rc LED always on Check that the Rc+ and Rc- polarity of attached equipment is correct and check attached device(s). Rc LED always off – when receiving Check that the connected device(s) is transmitting to the adapter. Antona Corporation (818)783-4299... -
Page 17: Appendix C -Circuit Board Schematic
Appendix C -Circuit Board Schematic 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 competent technical service personnel to use in maintenance or repair.
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