Huawei NetEngine AR502EG‑L Industrial LTE Gateway Full Product Description

1. Short Overview

Naming & Variant Breakdown

• AR502EG‑L: Standard LTE industrial gateway, 2×GE, isolated RS232 / RS485/422, 6‑channel DI/DO, dual‑SIM LTE FDD, no Wi‑Fi, no ZigBeeHuawei Car...
• Derivatives: AR502EG‑La, AR502EG‑Lj (different LTE frequency band variants for regional markets)

Difference vs AR502EGW‑L: AR502EG‑L does not integrate WLAN Wi‑Fi module; Difference vs AR502EG‑L‑PD: ‑PD variant supports PoE PD power supply and IP65 outdoor housing, while AR502EG‑L is IP30 for cabinet indoor installationHuawei Car....

Core Differentiators

1. Fan‑free passive cooling industrial hardware, wide operating temperature −25 °C ~ +70 °C, IP30 protection grade, anti‑interference EMC compliance for industrial cabinet environment
2. Integrated LTE‑A FDD cellular modem, dual‑SIM single‑standby for wireless link redundancy
3. Rich industrial I/O: 2×GE Ethernet, isolated RS232, isolated RS485/422, 6‑channel DI/DO digital alarm input/output for field signal collection and controlHuawei Car...
4. Compact form‑factor, supports DIN‑rail mounting or wall‑mount deployment for power cabinets, transportation roadside cabinets and remote station cabinets
5. Supports IPsec VPN, firewall, ACL, remote O&M and batch deployment via eSight platform

2. Hardware Interface & Physical Specifications

Core Hardware

• Processor: Dual‑core ARM 700 MHz
• Memory: 512 MB RAM; 512 MB Flash
• Cooling: Fan‑free passive heat dissipation
• Cellular: Built‑in LTE‑A FDD module, 2×SMA antenna interfaces; dual Micro‑SIM slots (SIM1 primary, SIM2 backup, single‑standby mode)

Fixed Interfaces

1. Ethernet:2 × GE 10/100/1000M auto‑sensing RJ45 ports, GE0 supports management access and software configurable as WAN/LAN
2. Industrial Serial
   • 1 × Isolated RS232 (DB9 female, switchable between Console or serial‑device mode via Config button)
   • 1 × Isolated RS485/422 (terminal‑block connector) for RTU, meter and sensor accessHuawei Car...
3. Alarm I/O: 6‑channel DI/DO terminal‑block (LVTTL level) for site status acquisition and relay control outputHuawei Car...
4. Other ports
   • 1 × USB2.0 Type‑A for configuration import/export and local file storage
   • Config button: short‑press toggle RS232/Console; long‑press ≥5 s restore factory default
   • Grounding terminal for lightning‑protection and EMC improvement
   • 4‑pin DC power terminal block

Physical & Power Parameters

• Dimensions (H × W × D): 44 mm × 150 mm × 100 mm
• Weight: approx 0.85 kg
• Power input: Wide‑voltage DC 8‑36 VDC, rated 12 V / 24 VDC; max power consumption 8 W (power adapter sold separately)
• Installation: DIN‑rail mounting (optional kit) or wall‑mount by brackets
• Operating environment
  • Operating temperature: −25 °C ~ +65 °C under max LTE transmit power; −25 °C ~ +70 °C typical working state
  • Storage temperature: −40 °C ~ +85 °C
  • Humidity: 5%‑95% non‑condensing
  • Protection rating: IP30
  • EMC: Complies with IEC61850‑3, IEEE1613 for electric‑power industrial‑grade electromagnetic‑interference resistance

3. Software Feature Suite (V200R008 and later)

Routing & WAN Connectivity

• IPv4 / IPv6 dual‑stack routing: Static route, RIP, OSPF
• WAN access: Ethernet PPPoE, LTE cellular dial‑up; dual‑SIM link backup and automatic switchover
• NAT: Static NAT, PAT address translation for local IoT terminals
• Layer‑2 features: 802.1Q VLAN, port isolation

Integrated Security Features

• Zone‑based stateful firewall, ACL access control list
• VPN suite: IPsec site‑to‑site VPN for encrypted industrial data transmission over public cellular network
• AAA authentication: Local user, RADIUS authentication for device access
• Anti‑attack functions: URPF, CPCAR to resist common network attacks

Management & O&M

• Local management: CLI via Console port, local Web‑UI
• Remote management: SSHv2, HTTPS, SNMPv2c/v3, Syslog alarm reporting
• Centralized management: Batch configuration, monitoring and remote upgrade supported by Huawei eSight management platform
• USB‑assisted deployment: Configuration backup/restore and batch upgrade via USB flash‑disk
• Supports remote over‑the‑air firmware upgrade over LTE cellular link

4. Typical Deployment Scenarios

1. Smart Power Distribution Cabinet Gateway: Installed in distribution cabinets, collects meter and RTU data via RS485, encrypts and transmits data back to power control centre through LTE IPsec VPN.
2. Remote Unattended Station Backhaul: Used for water conservancy, environmental‑monitoring stations; collects sensor data via DI/DO and serial ports, wireless backhaul over 4G LTE.
3. Smart Transportation Road‑side Cabinet: Deployed beside road facilities, connects roadside sensors and cameras, provides wireless network backhaul for unmanned roadside sites.
4. Distributed Industrial Field Sites: For oil‑field, mine peripheral monitoring nodes, delivers reliable public‑network wireless access for field IoT terminals.

5. Standard Package Contents of AR502EG‑L

Separately‑Sold Optional Accessories

• LTE high‑gain SMA antennas
• Industrial DC power adapter (12 V / 24 V)
• DIN‑rail mounting kit
• Serial‑port DB9 connecting cables

Software Licensing Information

Short Commercial Catalog Summary