ST-20 Argos Satellite Transmitter
TABLE 1-1. ST-20 Serial Port Configuration
Pin number Function
1 +5 volts
2 Ground
3 NC
4 TXD (data out)
5 NC
6 SDE (input)
7 CLK/HS (input)
8 +12 volts
9 RXD (data in)
FIGURE 1-2. ST-20 with CR1000 Datalogger in Enclosure
2
