Wireless communication | Serial ports | GSM Modem | Converter type | ||
---|---|---|---|---|---|
GSM Modem | Radio | TTL | GPRS | Simple device | |
ATC-863-module-S1 |   |
|
  |   |
|
ATC-871-module-S1 |   |
|
  |   |
|
ATC-873-module-S1 |   |
|
  |   |
|
F2113 |
|
  |
|
|
  |