3 SPECIFICATIONS
3.2
The following shows the
3.2.1
The following shows the specifications of the
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| abbreviation | C24 |
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1 | CD | Carrier detect |
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2 | RD(RXD) | Receive data |
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3 | SD(TXD) | Send data |
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3 | 4 | DTR(ER) | Data terminal ready |
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5 | SG | Signal ground |
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6 | DSR(DR) | Dataset ready |
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5 | 7 | RS(RTS) | Request to send |
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| 8 | CS(CTS) | Clear to send |
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| 9 | RI(CI) | Call Indicate |
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(1)The control signals are described below. (The pin numbers of the connector are enclosed in parentheses.)
1)CD signal (1)
•The Q series C24 operates according to the setting CD terminal check (see Section 8.4.5) of the Q series C24.
| CD terminal check enabled | CD terminal check disabled | |
| • The Q series C24 performs send and receive | • The Q series C24 performs send and receive | |
| processing when the CD signal (receive | processing regardless of the ON/OFF status | |
carrier detection) is ON. | of the CD signal. | ||
communication | • If the CD signal is turned off during data | • Data communications is possible with an | |
| communication, the Q series C24 initializes | external device that cannot turn the CD | |
| the transmission sequence. | signal ON/OFF. | |
See Chapter 8 of User's Manual (Application) | Setting impossible. | ||
communication | |||
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2)RD signal
This is a signal to receive data.
3)SD signal
This is a signal to send data.
3 - 3 | 3 - 3 |