eWON4002™
Installation Guide
ver 2 . 04
9.5.1 Pinout serial ports 1 and 3 (according to mode):
Pin | RS232 | RS485 | RS422 |
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1 | - | - | - |
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2 | RXD | - | RX+ |
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3 | TXD | A+ | TX+ |
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4 | - | - | - |
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5 | GND | GND | GND |
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6 | - | - | - |
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7 | RTS | - | RX- |
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8 | CTS | B- | TX- |
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9 | - | - | - |
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Table 27: Serial ports 1 and 3 pinout
9.5.2 Pinout serial port 2
Pin | RS232 |
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1 | DCD |
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2 | RXD |
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3 | TXD |
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4 | DTR |
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5 | COM (GND) |
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6 | DSR |
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7 | RTS |
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8 | CTS |
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9 | RI |
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Table 28: Serial port 2 pinout
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