6.2.5Interface pin assignment
Serial and parallel interface pin assignment tables are shown below.
Serial interface pin assignment table
| Pin No. | Signal | Input/Output | Description |
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| 1 | F.GND | − | Frame ground |
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| 2 | TXD | Output | |
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| 3 | RXD | Input | |
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| 4 | RTS | − | |
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| 5 | CTS | Input | |
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| computer permitted |
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| 6 | NC | − | No connection |
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| 7 | S.GND | − | Signal ground |
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| 8 | NC | − | No connection |
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| 9 | NC | − | No connection |
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T | 10 | NC | − | No connection |
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| 11 | NC | − | No connection |
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| 12 | NC | − | No connection |
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| 13 | S.GND | − | Signal ground |
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| 14 | +5VDC | − | +5 V (max. load 100 mA) |
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| 15 | NC | − | No connection |
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| 16 | NC | − | No connection |
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| 17 | NC | − | No connection |
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| 18 | NC | − | No connection |
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| 19 | NC | − | No connection |
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| 20 | DTR | Output | |
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| printer permitted |
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| 21 | NC | − | No connection |
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| 22 | NC | − | No connection |
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| 23 | NC | − | No connection |
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| 24 | NC | − | No connection |
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| 25 | NC | − | No connection |
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