USR-TCP232-410S User Manual
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3.2 Indicators
1) POWER: indicate power. It is on when power is supplied.
2) WORK: indicate working status. It twinkles when 410S works well. If it is on or off for a period, 410S
works improperly, you should cut the power and restart.
3) 232TX: It twinkles when 410S RS232 sends data.
4) 232RX: It twinkles when 410S RS232 receives data.
5) 485TX: It twinkles when 410S RS485 sends data.
6) 485RX: It twinkles when 410S RS485 receives data.
4. Software Design Reference
4.1 Functions