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AC55 Standard Configuration

 

AC55: Input 1, DB9 male

PinSignalNotes
1o/cNot connected
2RxDData coming from device and entering Mux for onward transmission to Host.
3TxDOptional return data path from Mux to device. Not connected unless jumper link is fitted. Default is not fitted
4DTRConnected to pin 9- this is compatible with a regular (asserted) DTR output
5GNDCommon data ground
6DSRNot connected
7RTSRS232 handshake line output. Permanently enabled (Wired to +12v via 1k resistor)
8CTSNot connected
9Power outProvides + 5v DC at up to 300mA to power devices
 

AC55: Input 2, DB9 female

PinSignalNotes
1o/cNot connected
2RxDData coming from device and entering Mux for onward transmission to Host.
3TxDOptional return data path from Mux to device. Not connected unless jumper link is fitted. Default is not fitted
4DTRConnected to pin 9- this is compatible with a regular (asserted) DTR output
5GNDCommon data ground
6DSRNot connected
7RTSRS232 handshake line output. Permanently enabled (Wired to +12v via 1k resistor)
8CTSNot connected
9Power outProvides + 5v DC at up to 300mA to power devices

AC55: Jumper Links and Data Switch

Configuration details- AC55 AC55: View inside case

Summary

  • Jumper Link Channel 1: Open. Backward data path disabled
  • Jumper Link Channel 2: Open. Backward data path disabled
  • Data Switch: Away from Power Socket. Data injected into Host/Terminal pin 3 circuit.
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