TCG120-4_R1.3 –May 2022 Page 2
1. Short description
TCG120-4 is a 4G LTE Cat.1 wireless I/O module. It supports also 3G and 2G wireless communication
and provides data connectivity on LTE-FDD, DC-HSDPA, HSPA+, HSDPA, HSUPA, WCDMA, EDGE, and
GPRS networks.
The device has 2 digital inputs, 2 analog inputs, 1-Wire interface for external sensors and 2 relays. The
relays can be activated either remotely (via SMS or HTTP API command) or locally - from the status of
the monitored parameters.
TCG120-4 supports all 1-Wire sensors of Teracom.
The universal I/O module supports HTTP API for easy M2M communication. The device sends
periodically an HTTP/HTTPS Post to a remote server with an XML/JSON status file. As an answer, the
server can send commands for relay activation or settings change.
2. Features
•Multi-band connectivity;
•Setup via USB, SMS, and HTTP API;
•2 digital "dry contact" inputs;
•2 analog inputs with 0 to 60VDC range;
•2 relays with NO and NC contacts;
•1-Wire support for all Teracom sensors;
•MQTT 3.1.1 support;
•SMS alarm alerts for up to 5 numbers;
•Email alarm alerts for up to 5 email recipients;
•Periodical HTTP/HTTPS Post with current status in XML or JSON file to a remote server;
•HTTP API commands;
•GSM geolocation;
•Firmware update over USB or Internet.
3. Applications
TCG120-4 is suitable for industrial automation, data acquisition systems, environmental monitoring,
local control of an electrical and non-electrical parameter, building automation, etc.:
•SCADA systems
TCG120-4 be easily integrated into SCADA systems. The periodical HTTP/HTTPS Post is
suitable for client-server platforms.
•Environmental monitoring and control
4. Specifications
•Physical characteristics
Dimensions: 109 x 65 x 32 mm
Weight: 152 g
Mounting: wall
•Environmental limits
Operating temperature: -20 to 55°C
Operating temperature for USB setup: 0 to 40°C
Storage temperature: -25 to 60°C
