SIM A7670C 4G LTE TTL Modem

SIM A7670C 4G LTE TTL Modem


The [SIM A7670C 4G LTE TTL Modem](https://www.graylogix.in/product/sim-a7670c-4g-lte-ttl-modem## Unlock Lightning-Fast 4G Speeds in Tight Spaces

Built on the SIMCOM A7670C chip, this modem supports LTE-FDD (B1/B3/B5/B8) and LTE-TDD (B34/B38/B39/B40/B41 efficiency:** * Sleep mode under 10mA, ideal for battery-powered devices. * Input * Industrial-grade (-40°C to +85°C). * Compact dimensions (56-60mm) with ESD protection.

Ready to supercharge your project? Get the SIM A7670C 4G LTE TTL Modem from Graylogix for plug- this modem in precision agriculture: real-time soil sensors transmit data via 4G, even in 2G-only zones, enabling remote monitoring with low power draw. Or build a home automation hub—control lights, security cams, and thermostats over LTE with MQTT protocols, all from a Li-ion battery setup.

In industrial automation, its RS232 DB9 and AT command control streamline router builds or telemetry systems, handling SMS (text/PDU) and video streaming up to HD levels. Developers love the backward compatibility and drivers for Windows/Linux/Android, plus USB firmware upgrades.

For hands-on prototyping, check the full specs and buy your SIM A7670C 4G LTE TTL Modem at Graylogix—perfect for TTL-direct interfacing.

Why Choose SIM A7670C Over Older Modules?

Feature SIM A7670C Advantage Typical 2G/3G Modems
Speed 10Mbps DL / 5Mbps UL <1Mbps
Power 5V DC 400mA
Bands LTE-FDD/TDD + GSM fallback Limited 2G only
Interface TTL UART Onboard Logic Level Converter
Protocols MQTT/HTTPS/FOTA Basic TCP

This modem's miniaturized form factor and abundant pins (NETLIGHT, STATUS) make it ideal for space-constrained IoT gadgets like wearables or drones.

Elevate your builds today—order the SIM A7670C 4G LTE TTL Modem exclusively from Graylogix and experience Cat-1 power.

Get Started with AT Commands in Minutes

Control is simple: Power up (7-12V DC jack), insert SIM, attach antenna, and send AT commands via UART for network registration, data transfer, or SMS. Sample code for Arduino integration is straightforward—expose Rx/Tx/Gnd pins and you're live.

Dive deeper into this powerhouse module via Graylogix's SIM A7670C page, your go-to source for UART modems.

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