
5.4.2Connector pin assignment
Connector (cable side):
Figure 5.11 shows the serial interface connector.
1 | 5 | (Cable side) |
6 | 9 | (Male type) |
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Figure 5.11 Serial interface connector
Signal definition:
Table 5.3 lists
Table 5.3 RS-232C interface signals
Pin | Signal name | Direction | Description | |
number | ||||
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1 | RTS | Output | Request to Send | |
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| Space state when the printer is ready to transmit data | |
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2 | TD | Output | Transmitting Data | |
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3 | RD | Input | Receiving Data | |
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4 | DSR | Input | Data Set Ready | |
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| The printer can receive or transmit data when this signal is in the | |
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| space state. | |
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5 | SG |
| Signal Ground (common return) | |
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6, 8 | DTR | Output | Data Terminal Ready | |
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| Space state when the printer is ready to receive or transmit data |
Notes:
1.The space state corresponds to the high level of the interface signal.
2.The direction (output or input) is viewed from the printer side.