User Manual
Page 56
This is : Pin 2: Data out to GPS Pin 3: Data in Pin 5: Sig. Connecting to DGPS For the DBR (differential beacon receiver) that has a DB9 connector on the housing, the pinout is due to the pinout being the opposite of the DB9 connector configuration for a PC connection. 48 Magellan GPS 315/GPS 320 GND 5 1 9 6 To use the PC interface cable to interface the GPS receiver with the DBR-2 or DBR-3, you must use a null modem (Radio Shack P/N: 26-264A) and a gender changer (Radio Shack P/N: 26-280A) to connect the GPS receiver properly.
This is : Pin 2: Data out to GPS Pin 3: Data in Pin 5: Sig. Connecting to DGPS For the DBR (differential beacon receiver) that has a DB9 connector on the housing, the pinout is due to the pinout being the opposite of the DB9 connector configuration for a PC connection. 48 Magellan GPS 315/GPS 320 GND 5 1 9 6 To use the PC interface cable to interface the GPS receiver with the DBR-2 or DBR-3, you must use a null modem (Radio Shack P/N: 26-264A) and a gender changer (Radio Shack P/N: 26-280A) to connect the GPS receiver properly.