connector wiring scheme Fargo Telecom Wismo Maestro 20 Maestro 100 GSM GPRS modem 900 / 1800
15 pin
highdensity D-SUB female connector at the cable
15 pin
highdensity D-SUB male connector at the device
| Pin | Name | Direction | Description |
|---|---|---|---|
| 1 | DCD | OUT | Data Carrier Detect |
| 2 | TX | IN | Transmit Data |
| 3 | BOOT | IN | |
| 4 | MICROPHONE(+) | OUT | 0.5mA; 100mVpp |
| 5 | MICROPHONE(-) | OUT | |
| 6 | RX | OUT | Receive Data |
| 7 | DSR | OUT | Data Set Ready |
| 8 | DTR | IN | Data Terminal Ready |
| 9 | GND | - | Ground |
| 10 | SPEAKER(+) | 16mA; 32 Ohm | |
| 11 | CTS | OUT | Clear To Send |
| 12 | RTS | IN | Request To Send |
| 13 | RI | OUT | Ring Indicator |
| 14 | RESET | IN | |
| 15 | SPEAKER(-) |