TCG120 is a remote IO control module that connects via a GSM/GPRS mobile Network. It has two digital and two analogue inputs, plus up to four 1-wire sensor support for temperature and humidity sensor. Two relay outputs for remotely switching devices (offering both normally open and normally closed wiring options). The controller can be used as a standalone device or as a part of data acquisition (SCADA) systems. The TCG120 and TCG120-4 (both 4E and 4G versions) are available.
The Teracom TCG120 is a wireless I/O module designed for robust “last-mile” communication. It ensures reliable connectivity with versions supporting 4G, 3G, and 2G (GSM-GPRS) networks, automatically adapting to available coverage. If needed, you can manually select the network during setup. For inputs and outputs, it includes two digital inputs, two analogue inputs, and two relays with both normally open and normally closed contacts. Additionally, it features a 1-Wire interface that supports up to four Teracom sensors, expanding its monitoring capabilities.
Setting up the TCG120 is straightforward; you can use a web-based graphical interface initially. Once deployed, it can be easily configured remotely using SMS or HTTP API commands. This module also supports offline operation, allowing its relays to be triggered by alarm conditions from any monitored parameter, be it digital inputs, analogue inputs, or connected sensors. This means the device can control processes directly without external commands. For integration into SCADA systems, the TCG120 supports machine-to-machine (M2M) communication protocols like HTTP API (sending full status in XML or JSON) and MQTT (sending selected parameters efficiently, even on limited bandwidth networks).
The primary distinction between the TCG120 and the TCG120-4 is their cellular connectivity: the TCG120 operates on only 2G (GSM/GPRS) networks, while the TCG120-4 is the new upgraded version that supports 4G LTE Cat. 1, with backward compatibility to 2G (TCG120-4E covers 2G and 3G). This makes the TCG120-4 the better choice as 2G networks are being phased out in many regions.
4G LTE: B1/B3/B5/B7/B8/B20
2G: B3/B8
4G LTE: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28/B66/B34/B38/B39/B40/B41
3G: B1/B2/B4/B5/B6/B8/B19
2G: B2/B3/B5/B8
| Model | TCG120-4X |
| Analogue Input | 0-60vDC |
| Digital Input | Non-Isolated Dry contact, Max 5.5vDC. |
| Relay Output | NO or NC contacts |
| Rating | 3A @ 24VDC or 30VAC |
| Mechanical Endurance | 10 million operations |
| 1-Wire Interface | up to 4 temperature (TST1XX) or temperature/humidity (TSH2xx) sensors |
| Power Supply | 10-28vDC |
| Power Consumption | 240mA :@ 12vDC |
| Dimensions: | 109 x 65 x 32mm |
| Weight | 152g |
| Operating Temperature | -20 to +55°C (USB Setup: 0 to 40°C) |
| Operating Humidity | 5 to 85%RH |
| Warranty | 3 Years |
TCG120-4E
£159.78
TCG120-4G
£218.48
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