| Details of the DTA serial programming lead and rolling road Potbox. |
| Serial lead for programming the DTA EXP48 ECU from a laptop. |
| Potbox is for use on a rolling road for quicker entering of multiple results. |
| Serial programming Cable | ||
| DTA end. |
PC End. |
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| 15 Pin HD male. | 9 Pin D female. | |
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| Pin No. | Pin No. | Function |
| 1 (CD) | 1 (CD) | Carrier Detect ? |
| 2 (RD) | 2 (RD) | Receive Data |
| 3 (TX) | 3 (TX) | Transmit Data |
| 4 (DTR) | 4 (DTR) | Data Terminal Ready |
| 5 (GND) | 5 (GND) | System Ground |
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Pot box with Serial pass through connector |
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| DTA end | Pass through. | Pot box |
| 15 Pin HD male |
15 Pin HD female |
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| Pin No. | Pin No. |
Small box with 2 off 4.7K linear pots & 3 off normally closed pushbutton switches fitted in it. |
| 1 (CD) | 1 (CD) | |
| 2 (RD) | 2 (RD) | |
| 3 (TX) | 3 (TX) | |
| 4 (DTR) | 4 (DTR) | |
| 5 (GND) | 5 (GND) | |
| 6 | n/c | "Advance" pot centre terminal. |
| 7 | n/c | "Fuel" pot centre terminal. |
| 8 | n/c | Switch and pot ACW terminal common. ( Note *1) |
| 9 | n/c | "Stop" switch. |
| 10 | n/c | "Enter" switch. |
| 11 | n/c | "Knobs" switch. |
| 12 | n/c | Pot CW terminal common. (Note *2) |
| 13 | n/c | |
| 14 | n/c | |
| 15 | n/c | |
| Note *1 One side of all of the switches and the anti clockwise terminals of the 2 pots is connected to pin 8 | ||
| Note *2 Clockwise terminal of the 2 pots is connected to pin 12 | ||
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| The normal warnings apply, use this information at your own risk, it is not supported by DTA in any way. |
| Many thanks to the original provider of these details who of course wishes to remain anonymous and my friend Chris Bass from Accumax for doing the Schematics for me. |
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