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BMD100 Cellular IP Modem connects to the PC through RS232, and the recommended power cable and data cable are 28-16AWG. The industrial cellular modem adopts the terminal interface. The wiring diagram, standard power cable and data cable are as follows:
Power Cable (Output 12VDC/0.5A)
| Cable color | Power Output Polarity | Corresponding DTU terminal |
| Black & White Alternate | Anode | 1 |
| Black | Cathode | 2 |
RS232 Cable (with DB9 female interface)
| Cable color | Corresponding DB9-F Pin Number | Corresponding DTU terminal |
| Blue | 3 | 10 |
| Brown | 2 | 9 |
| Black | 5 | 8 |
