Specification Null-modem cable to connect DGT E-Board to handheld cradles: Pocket PC or Palm.

The serial port connector of the cradle will show a female 9-pin D connector, and the DGT Board cable too. To connect the two, a short cable can be made which has 2 male 9-pin connectors, and swapped communication lines.

Needed: 
2 Male 9-pin D connectors
2 connector housings (caps)
15 cm 3-wire flexible cable
Soldering tool
Soldering tin

Connect by soldering:
Connector A: pin 5 to Connector B: pin 5
Connector A: pin 2 to Connector B: pin 3
Connector A: pin 3 to Connector B: pin 2

Assemble the connector caps, Ready!