
| Appendices | Apx.C Pin Assignments | 
C.15 PJ2017 MDC1 interface connector (30-pin) 
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 | Table  | MDC1 interface connector  | 
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| Pin No. | Signal Name | I/O | Pin No. | Signal Name | I/O | 
| 1 | NC | - | 2 | GND | - | 
| 3 | GND | - | 4 | I | |
| 5 | NC | - | 6 | NC | - | 
| 7 | NC | - | 8 | GND | - | 
| 9 | NC | - | 10 | NC | - | 
| 11 | NC | - | 12 | NC | - | 
| 13 | NC | - | 14 | NC | - | 
| 15 | GND | - | 16 | - | |
| 17 | B3V | - | 18 | NC | - | 
| 19 | GND | - | 20 | GND | - | 
| 21 | NC | - | 22 | O | |
| 23 | O | 24 | NC | - | |
| 25 | O | 26 | O | ||
| 27 | GND | - | 28 | GND | - | 
| 29 | GND | - | 30 | O | |
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C.16 PJ1003 MDC2 interface connector (2-pin) 
Table 
| Pin No. | Signal Name | I/O | Pin No. | Signal Name | I/O | 
| 1 | I/O | 2 | I/O | 
C.17 PJ2019 Serial interface connector (9-pin) 
Table C-17  Serial interface connector (9-pin) 
| Pin No. | Signal Name | I/O | Pin No. | Signal Name | I/O | 
| 1 | I | 2 | I | ||
| 3 | O | 4 | O | ||
| 5 | GND | - | 6 | I | |
| 7 | O | 8 | I | ||
| 9 | I | 
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| TECRA M1 Maintenance Manual  | 
