FG Smart Lightning Gateway
ESX Series
Up to 128 lightning-monitoring points aggregated, unified cloud management, the data hub of an online lightning-protection platform.

Product Overview
The ESX intelligent edge computing gateway is suitable for the power, railway, petrochemical, new energy, communications, environmental protection & water conservancy, airport apron lightning rod, and power distribution & grounding system industries, providing data aggregation, protocol conversion and remote upload for various monitoring terminals. With multiple uplink/downlink communication methods, fault alarms, scheduled acquisition and other functions, it processes data efficiently and features data storage, resume-on-breakpoint and offline protection. It can also coordinate and control each terminal device per backend commands, realizing system-level automated response and building a smart lightning protection IoT network.
Core capabilities
High data processing efficiency with data storage, resume-on-breakpoint and offline protection. Downlink RS485/Zigbee and uplink Ethernet, supporting multiple communication combinations. Local indicator lights for alarm status, with local and cloud-based networked alarms. Built-in anomaly detection algorithm for millisecond-level alarm processing and prediction. Product Features
Data Generated
Product Features
High efficiency
High data processing efficiency with data storage, resume-on-breakpoint and offline protection, ensuring data integrity and continuity.
Smart alarms
Local indicator lights show alarm status; multiple parameter warning/alarm presets can be freely configured, supporting local alarms and cloud-based networked alarms.
Alarm prediction
Built-in anomaly detection algorithm processes alarms within milliseconds and predicts abnormal trends in advance.
Multiple communication options
Can connect to the gateway via RS485/Zigbee/Ethernet etc., transmitting all kinds of data to the cloud service system.
Smart linkage control
Can coordinate and control each terminal device per backend commands, realizing system-level automated response and building a smart lightning protection IoT network.
Scheduled autonomous acquisition
Supports scheduled polling of terminal data and uploading to the server at configured intervals, reducing manual intervention and ensuring data real-time performance and continuity. Selection Guide
System Topology
Selection Guide
Model naming convention
FG - 02 2 1 - E R FG Product: Smart gateway 02 Gateway type: 01=transparent transmission; 02=protocol conversion 2 Mounting method: 1=outdoor; 2=indoor 1 Power supply: 1=DC12V; 2=AC220V E Uplink communication: E=Ethernet R Downlink communication: R=RS485; Z=Zigbee Model Power supply Downlink communication Uplink communication 4G FG-0221-ER DC12V RS485 Ethernet -- FG-0221-EZ DC12V Zigbee Ethernet -- FG-0222-ER AC220V RS485 Ethernet -- FG-0222-EZ AC220V Zigbee Ethernet -- Technical Parameters
| Model | Power supply / Downlink communication / Uplink communication / 4G |
| FG-0221-ER | DC12V / RS485 / Ethernet / -- |
| FG-0221-EZ | DC12V / Zigbee / Ethernet / -- |
| FG-0222-ER | AC220V / RS485 / Ethernet / -- |
| FG-0222-EZ | AC220V / Zigbee / Ethernet / -- |
Technical Parameters
Basic parameters
Operating voltage DC 12V Power consumption ≤1W Operating temperature -20℃~60℃ Operating humidity <95% Weight 260g Dimensions 72*90*69mm (L×W×H) Housing material Thermoplastic material UL94V0 Protection rating IP20 Mounting method Standard 35mm DIN rail mounting
| Operating voltage | DC 12V |
| Power consumption | ≤1W |
| Operating temperature | -20℃~60℃ |
| Operating humidity | <95% |
| Weight | 260g |
| Dimensions | 72*90*69mm (L×W×H) |
| Housing material | Thermoplastic material UL94V0 |
| Protection rating | IP20 |
| Mounting method | Standard 35mm DIN rail mounting |
Communication parameters
Communication Downlink RS485/Zigbee; uplink Ethernet Communication protocol Modbus/MQTT protocol Downlink RS485 Supported Downlink Zigbee Supported Uplink Ethernet Supported Data storage Supported Resume on breakpoint Supported Offline protection Supported Scheduled acquisition Supported Installation Instructions
| Communication | Downlink RS485/Zigbee; uplink Ethernet |
| Communication protocol | Modbus/MQTT protocol |
| Downlink RS485 | Supported |
| Downlink Zigbee | Supported |
| Uplink Ethernet | Supported |
| Data storage | Supported |
| Resume on breakpoint | Supported |
| Offline protection | Supported |
| Scheduled acquisition | Supported |
Installation Instructions
a
Installation dimension drawing
72mm length 90mm width 69mm height 35mm standard DIN rail b
Interface description
Interface definition No. Definition 1 V+, V-: power input DC12V 2 A, B: RS485 bus interface 3 Antenna port (for wireless communication, an antenna port is located on the bottom of the module) 4 Ethernet port (an Ethernet port is located on the top of the module)
| No. | Definition |
| 1 | V+, V-: power input DC12V |
| 2 | A, B: RS485 bus interface |
| 3 | Antenna port (for wireless communication, the antenna port is on the bottom of the module) |
| 4 | Ethernet port (the Ethernet port is on the top of the module) |
Key Points
Definition: The ESX intelligent edge computing gateway is the core gateway device of the FEXLINK smart lightning protection IoT network, responsible for data aggregation, protocol conversion and edge linkage. Core capabilities: downstream connection of monitoring terminals such as FSS/FSP/FS/ZSA, upstream upload via Ethernet/Wi-Fi/4G, local caching and resume-on-breakpoint, and integration with Modbus, MQTT and FEXLINK Cloud. Applicable scenarios: power distribution rooms, industrial parks, base stations and other scenarios where multiple devices need to be aggregated and connected to the cloud platform. Related products: FSS intelligent surge protective device, FS surge protective device monitor, CW edge computing gateway, FEXLINK Cloud.
FAQ
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