|
|
|||||||||
| Model | 2G Frequency (MHz) | 3G Frequency (MHz) |
4G Frequency (Bands) | Micro SD | Power Backup | SMS Function | Alarm | Interface | I/O |
|---|---|---|---|---|---|---|---|---|---|
| SMS-530 | GSM/GPRS: 850/900/1800/1900 MHz | WCDMA: 850/900/1900/2100 MHz | - | - | 1250mAh 3.7V Battery | SMS IO | SMS | 2 x RS-232 | 10 x DI 2 x DO |
| SMS-531 | GSM/GPRS: 850/900/1800/1900 MHz | WCDMA: 850/900/1900/2100 MHz | - | Yes | - | SMS Modbus | SMS, Voice | 2 x RS-232 1 x RS-485 |
- |
| SMS-534 | GSM/GPRS: 850/900/1800/1900 MHz | WCDMA: 850/900/1900/2100 MHz | - | Yes | 1250mAh 3.7V Battery | SMS IO | SMS, Voice | 1 x RS-232 1 x RS-485 |
6 x DI 2 x DO 1 x AI |
| GTP-500M | GSM/GPRS: 850/900/1800/1900 MHz | WCDMA: 850/900/1900/2100 MHz | - | Yes | 1250mAh 3.7V Battery | SMS IO | SMS | 1 x RS-232 1 x RS-485 |
Optional |
| GTP-541M | GSM/GPRS: 900/1800 MHz | GSM/GPRS: 900/1800 MHz | FDD LTE : B1/B3/B8 TDD LTE : B38/B39/B40/B41 |
Yes | - | SMS IO SMSModbus SMS TXT |
SMS, Voice | 1 x RS-232 1 x RS-485 |
5 x DI 2 x DO 2 x AI |
| GTP-541M-UDR | |||||||||