User's Manual

User Guide | FreeSpeak II™
Page 45
other words, the data Tx and Rx lines on pins 2 and 3 are reversed. Those are the
only wiring connections on the FS II end of the cable.
PC Connection (9-pin
F)
Base station (9-pin
M)
1 N/C
2 3
3 2
4 N/C
5 5
6 N/C
7 N/C
8 N/C
9 N/C
Table 4-6 Pinout for cable to upgrade Base station firmware
On the PC end, a female 9-pin D connector is used. Make sure that the data
connections of pin 2 to pin 3 and pin 3 to pin 2 are followed, and that pin 5 goes
through to pin 5. Then short pins 1, 4, 6, and 8 together on the PC end of the
cable. The cable will now be ready to use with the any upgrade files from the
factory. Table 4-6 Pinout for cable to upgrade Base station firmware gives the pin
configuration for this cable. Table 4-7 Pinout for cable to upgrade beltpack
firmware shows the pin configuration for the cable used to upgrade beltpack
firmware.