The GTM-201 series are industrial Quad-band GSM/GPRS modems with RS-232 and USB interfaces that work on frequencies of GSM 850 MHz, EGSM 900 MHz, DCS 1800 MHz and PCS 1900 MHz. The modems utilize the GSM/GPRS network for convenient and inexpensive data transfer from remote instruments, meters, computers or control systems in either live or packet data. GTM-201 series have the integrated TCP/IP stack so that even simple controllers with serial communications ports can be connected to the modem without the need for special driver implementation. With GTM-201, systems can be SMS and GPRS connection applications with various PLC and PC's. With the voice interface, these modems can also be applied to alarm systems with sounds.
- Supply Voltage: +10 VDC ~ +30 VDC
- 4 KV ESD Protection
- Quad-band GSM/GPRS Modem Operating on 850/900/1800/1900 MHz
- Designed for GPRS, Data, Fax, SMS and Voice Applications
- Support TCP Server, TCP Client, UDP Client Connection from GPRS
- Support Standard AT Commands
- A Digital Input Channel for Resetting the System
- Provide the MIC Input and Speaker (32 Ω) Output Interface
- LED Indicators for GSM and Power Indication
- High Reliability in Harsh Environment
- RS-232 Port Supports 9600 bps to 115200 bps (GTM-201-RS232)
- Mount Easily on DIN-Rail
- Applications: Industrial Quad Band GPRS / GSM Modem
| Models |
GTM-201-RS232 |
GTM-201-USB |
| GSM/GPRS System |
| GPRS/GSM Quad-band |
850/900/1800/1900 MHz |
| GPRS Multi-slot |
Class 10/8 |
| GPRS Mobile Station |
Class B |
| GPRS Class 10 |
Max. download speed 85.6 kbps |
| CSD |
Up to 14.4 kbps |
| Compliant to GSM Phase 2/2+ |
Class 4 (2 W @ 850/900 MHz); Class 1 (1 W @ 1800/1900 MHz) |
| Coding Schemes |
CS 1, CS 2, CS 3, CS 4 |
| SMS |
Text and PDU Mode |
| Serial Ports |
| Serial Standards |
RS-232 (DB9 Female) |
USB (B-TYPE) |
| RS-232 |
TxD, RxD, RTS, CTS, DTR, DSR, DCD, RI, GND |
- |
| Baud Rate |
9600 bps ~ 115200 bps |
- |
| USB Interface |
- |
Yes |
| Include Cable (CA-USB18) x 1 |
- |
USB type A connector (Type A to Type B cable provided) |
| Compatibility |
- |
USB 1.1 and 2.0 standard |
| USB Driver Support |
- |
Windows 98 and 2000; Windows XP and XP 64-bit; Windows Vista and Vista 64-bit; Windows XP Embedded; WinPAC (WinCE5.0); LinPAC (Linux kernel 2.6) |
| Reset Input |
| Input Type |
Isolated, 3750 Vrms |
| On Voltage Level |
+3.5 VDC ~ +30 VDC |
| Off Voltage Level |
+1V max. |
| Input Impedance |
3 kΩ, 0.25 W |
| LED Indicators |
| Power |
Red color |
| GSM/GPRS |
Green color |
| Power |
| Protection |
Power reverse polarity protection |
| Frame Ground Protection |
ESD, Surge, EFT, Hi-Pot |
| Required Supply Voltage |
+10 VDC ~ +30 VDC |
| Power Consumption |
Idle: 25 mA @ 24 VDC; Data Link: 100 ~ 400 mA (peak) @ 24 VDC |
| Connection |
5-Pin 3.81 mm Removable Terminal Block |
| Mechanical |
| Casing |
Plastic |
| Flammability |
UL 94V-0 materials |
| Dimensions (W x L x H) |
33 mm x 87 mm x 107 mm |
| Installation |
DIN-Rail |
| Environmental |
| Operating Temperature |
-25 °C ~ +55 °C |
| Storage Temperature |
-40 °C ~ +80 °C |
| Ambient Relative Humidity |
5 ~ 95% RH, non-condensing |
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