The STN-4G (LTE) transmitter is a device for transmitting alarm signals from protected sites to a monitoring center via GSM networks (2G/4G). Designed and manufactured in Poland, it features 8 inputs and 2 outputs for
controlling external devices.
Power supply: DC 12.8 V (range 10.5–13.8 V) or AC 16–18 V (Imin = 30 mA, Imax = 1.2 A)
Inputs: 8 alarm inputs NO/NC, 1 tamper input for enclosure
Outputs: 2 open-collector (OC) outputs – controllable via SMS/CLIP/TCP, 1 AUX output (12 V, 160 mA)
Connectors: SMA antenna, mini USB programming interface (RS-USB converter required)
Additional features:
- Data transmission via GPRS (2G), LTE (4G), SMS, CLIP
- SMS backup transmission in case of TCP/UDP issues
- Communication via UDP (PULSON) and TCP (SIA-IP/ADM-CID)
- Operation with private or public APN
- Programmable NO/NC event codes
- Sending events via SMS to up to 10 numbers
- Power supply and battery monitoring
- Battery disconnection in case of failure
- Remote reads and configuration (up to 3 authorized numbers)
- Delivery confirmation for GPRS/LTE and SMS
- Continuous monitoring of network registration and BTS signal strength
- Limiting number of messages over a defined time period
- Local configuration using ST-Configurator software
- Remote firmware upgrade
- LED indicators: GSM status, signal strength, SIM, battery, AC power
Applications:
Transmitting alarm signals to a monitoring center
Controlling external devices (e.g., alarm, lighting, gates)
Remote monitoring and supervision of site status
Transmission:
GPRS/LTE (TCP/UDP)
SMS, CLIP (backup channel)
Two independent IP addresses/domains
Notifications:
SMS to up to 10 numbers (editable messages up to 32 characters)
Delivery confirmation (SMS and GPRS/LTE)
Programming:
Local – mini USB (ST-Configurator)
Remote – via GPRS/LTE
LED indicators: GSM operating mode, signal strength, SIM status, battery level, AC power




