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ICG-2420(G)-LTE Sales Guide

ManualsBrandsPLANET Technology ManualsIndustrial SwitchesIndustrial 4G LTE Cellular Gateway with 4-Port 10/100TX (2 SIM Card Slots, 1 RS232, 1 RS485, DI/DO, -20~70C)
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Product Overview – MQTT
MQTT
(MQ Telemetry Transport or Message Queue Telemetry Transport) is an ISO
standard (ISO/IEC PRF 20922)
publish-subscribe-based "lightweight" messaging protocol for use
on top of the TCP/IP protocol. MQTT is a machine-to-machine (M2M)/"Internet of Things"
connectivity protocol. It was designed as an extremely lightweight publish/subscribe messaging
transport.
MQTT Broker
(Server)
Publisher A
Publisher B
Subscriber C
Subscriber B
Subscriber A
MSG
MSG
MSG
MSG
MSG
MSG
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