Data Acquisition
The GTM-204M Series is an industrial 4G LTE and Quad-band GSM modem with RS-232 and USB interfaces that work at frequencies of 4G LTE and 3G WCDMA and 2G GSM. The modems utilize the 4G/3G/2G networks to transfer data. The features of the GTM-204M Series allow a variety of PLC and PC applications to take advantage of SMS and 4G/3G/2G connectivity.
Remote Data Monitor and Control.
Water, gas and oil flow metering and schedule.
Power station monitoring and control.
Oil field, weather forecast, environmental protection, street lamp monitoring and control.
Fleet management.
Vending machine.
Vehicle logistics and diagnostics controlling.
| LED Indicators | |
|---|---|
| Status | 1 x Power 1 x 4G |
| 2G System | |
|---|---|
| Data Transmission Rate | GPRS Downlink transfer: Max. 85.6 kbps Uplink transfer: Max. 42.8kbps |
| Frequency Band | 850/900/1800/1900 MHz |
| Coding Schemes | CS 1, CS 2, CS 3, CS 4 |
| GPRS Multi-slot | GPRS class 12; GPRS station class B |
| Power Class | Class 4 (2 W @ 850/900 MHz) Class 1 (1 W @ 1800/1900 MHz) |
| SMS Format | Sending: UCS2/7bits Receiving: UCS2/7bits |
| 3G System | |
|---|---|
| Data Transmission Rate | DC-HSPA+ Downlink transfer: Max. 42 Mbps; Uplink transfer: Max. 5.76Mbps TD-SCDMA Download: Max. 4.2 Mbps; Upload: Max 2.2Mbps CDMA2000 EVDO Download: Max. 14.7 Mbps; Upload: Max 5.4Mbps |
| Frequency Band | WCDMA 850/900/2100 MHz |
| Power Class | Class 3 (250mW @ WCDMA/HSPA) |
| SMS Mode | MT, MO, CB, Text and PDU mode |
| 4G System | |
|---|---|
| Data Transmission Rate | LTE Downlink transfer: Max. 100 Mbps Uplink transfer: Max. 50Mbps |
| Frequency Band | FDD LTE: B1/B3/B5/B7/B8/B20 |
| Reset Input | |
|---|---|
| Type | Isolated, 3750 Vrms |
| ON Voltage Level | +3.5 VDC ~ +30 VDC |
| OFF Voltage Level | +1 VDC max.T40 |
| Input Impedance | 3 kΩ, 0.25W |
| COM Ports | |
|---|---|
| Ports | 1 x RS-232 (RxD, TxD, GND) |
| Baud Rate | 9600 bps ~ 115200 bps (default:115200 bps) |
| USB | |
|---|---|
| Specification | USB 2.0 (high speed) |
| Driver | Windows XP/7/8/10, Windows Server 2012 |
| Mechanical | |
|---|---|
| Casing | Metal |
| Dimensions (mm) | 28 x 78.5 x 100 (W x L x H) |
| Installation | DIN-Rail |
| Environment | |
|---|---|
| Operating Temperature | -25℃ to 70℃ |
| Storage Temperature | -40℃ to 80℃ |
| Humidity | 5~90% RH, non-condensing |
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| ANT-421-05 |
| PRODUCT SERIES | DESCRIPTION | QNT | INQUIRY |
|---|---|---|---|
| GTM-204M-4GE CR | Industrial 4G Modem with RS-232 and USB interface. (RoHS) (Asia Only, Except China) | 1 | |