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| Categories: | Intelligent Communication Converters | Intelligent Communication Converters |
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Intelligent Communication Controller with one RS-485 port and one RS-232/RS-485 port
| Model Number | I-7521/7521D |
I-7522/7522D | I-7523/7523D | I-7524/7524D | I-7527/7527D |
| CPU (80188) | 40M | 40M | 40M | 40M | 40M |
| SRAM | 156k | 156k | 156k | 156k | 156k |
| Flash | 256k | 256k | 256k | 256k | 256k |
| COM 1 Port Program download |
RS-232/RS-485 (Note1) |
RS-232/RS-485 (Note1) |
RS-232/RS-485 (Note1) |
RS-232/RS-485 (Note2) |
RS-232/RS-485 (Note2) |
| COM 2 Port | RS-485(Note3) |
RS-485(Note3) | RS-485(Note3) | RS-485(Note3) | RS-485(Note3) |
| COM 3 Port | - | RS-422(Note4) |
RS-232(Note4) | RS-232(Note4) | RS-232(Note5) |
| COM 4 Port | - | - | RS-232(Note5) | RS-232(Note4) | RS-232(Note5) |
| COM 5 Port | - | - | - | RS-232(Note4) | RS-232(Note5) |
| COM 6 Port | - | - | - | - | RS-232(Note5) |
| COM 7 Port | - | - | - | - | RS-232(Note5) |
| COM 8 Port | - | - | - | - | RS-232(Note5) |
| D/O | 3 | 1 | - | - | - |
| D/I | 3 | 3 | 2 | ||
| User defined I/O | 3 | - | - | - | - |
| Real Time Clock | - | - | - | Y | Y |
| Embedded O.S. | MiniOS7 | MiniOS7 | MiniOS7 | MiniOS7 | MiniOS7 |
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