You can make a serial cable using the 9-pin serial commector to ribbon cable part. In page 30, we can see that you need to identify and then strip the ends of the wires on the ribbon cable that connected to pins 2, 3, 4, 5, 6, and 8 on serial connector. The wires connected to pins 4, 6, and 8 should be soldered together (and then insulated with heat-shrinkable tubing) Slip a short length of heat-shrinkable tubing onto wires 2, 3, 5.
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