5.6 RS-232C Interface Specifications
[ 1 ] Interface Connector and Pin Assignment
The CU-7000 has an RS-232C interface port (Dsub-25S).
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Pin No. | Signal | Functions | Signal Input/Output |
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1 | FG | Frame ground | Ñ |
2 | SD | Send data | → |
3 | RD | Receive data | ← |
4 | RS | Request to send | Ñ |
5 | CS | Ready to send | Ñ |
6 | DR | Data set ready | Ñ |
7 | SG | Signal ground | Ñ |
8 | CD | Carrier detect | Ñ |
20 | ER | Data terminal equipment ready | Ñ |
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The input/output voltage threshold for the logical valued signal is listed below.
Logical Value | Input Voltage Threshold | Output Voltage Threshold |
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0 | 3V min. | 5V min. |
1 | ||
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