Clear-Com FreeSpeak Antenna Splitter - Manual (Page 65)

Clear-Com Communication Systems
FreeSpeak V2.0 Instruction Manual 4 - 1 7
CONNECTING TO A PC
CONNECTING VIA THE SERIAL PORT
The PC serial port on the rear of the FreeSpeak basestation is mainly
used for firmware version upgrades of the system.
A specially wired cable is required for these updates, consisting of two
9-pin D-type connectors for the PC and the FreeSpeak ends. On the
FreeSpeak end, a male 9-pin D connector is used, and is wired as
follows in relation to the D connector pins on the PC end. Pin 2 goes to
pin 3, pin 3 goes to pin 2, and pin 5 goes to pin 5; in other words, the
data Tx and Rx lines on pins 2 and 3 are reversed. Those are the only
wiring connections on the FreeSpeak end of the cable.
Table 4-6: Pinout for Cable to Upgrade Basestation 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 gives the pin
configuration for this cable. Table 4-7 shows the pin configuration for
the cable used to upgrade beltpack firmware.
PC CONNECTION (9-PIN F) BASESTATION (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