2G/3G/4G Multi Function Controller  
 

GTP Series

 

2G
Frequency
(MHz)

3G
Frequency
(MHz)

4G

Band

SMS Function

RMV
Function

RTU Function

SD Card

GPS

Battery Interface

RS-232 / RS-485

Modbus RTU Slave

DI (Count)

DO

AI

GTP-230

850/900/
1800/1900

900/2100

-

Yes

Yes

-

-

-

-

1/1

- - - -

GTP-500M

850/900/
1800/1900

850/900/
1900/2100

-

Yes

Yes

Yes

FAT16/32

Yes

Option

1/1

3

Option

Option

Option

GTP-541M

900/1800

900/2100

B1/B3/B8
B38/B39/B40/B41

Yes

Yes

Yes

FAT/32

Yes

-

1/1

3

5

2

4