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Appendix
Terminal Block Pin Assignments
Circuit Test
To test the IC-485AI’s internal circuits, connect a dumb terminal
to the unit and do the following:
1. Set the DCE / DTE switch 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 rate of the communicaton application to 1200
bps.
6. Enter data.
If the circuit is operational, data appears on the screen
Pin
DCE/DTE
1
TrV
2
Transmit -V
3
Receive -V
4
RV
Summary of Contents for IC-485AI
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