Pin mapping from modem(26pin) to 25 pin Sub-
| source | dst | signal |
|---|---|---|
| 1,2,3 | → 4,16 | EXT_PWR |
| 4,5,6 | → 3,17 | EXT_GND |
| 7 | → 1 | ON/OFF |
| 10,13,20,23 | → 14,23,25 | SIG_GND |
| 11 | → 9 | S_TX (Serial Data into SBD) |
| 12 | → 13 | S_RX (Serial Data out) |
| 14 | → 10 | DCD |
| 15 | → 21 | DSR |
| 16 | → 22 | CTS |
| 17 | → 7 | RI |
| 18 | → 8 | RTS |
| 19 | → 19 | DTR |
| 24 | → 24 | network_available |
| 8,9,21,22,25,26 n.c. | ||