Wiring
The choice of the wire, owing to the low currents involved, is not critical. The use of solid wire is preferable, since stray strands have the tendency to splay out when pushed through the holes of the board, causing accidental shortcuts with neighbor pads.
Wire with a section of 0.2-0.5 mm2 (22-24 AWG), used for wire-wrapping or bread-boarding is the ideal choice.
The following table summarizes the wiring connections.
| Connector 1 | Connector 2 | Resistor* | Diode* | Max485 | RJ14 | ||||||||||||||||
| 5 (GND) | 7 (Vcc) | 8 (Vin) | 19 (D1) | 20 (D0) | 19 (D6) | 1 | 2 | C | A | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 2 | 3 | 4 | 5 |
| X | X | X | |||||||||||||||||||
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* The diode and the resistor can be omitted if an external power supply is used.
The names of the SBC65EC signals (GND, Vcc, Vin, D0, D1 and D6) are clearly marked near the corresponding pads on the PT01TC-ASM prototyping board.