China SR820 5G Connectivity Platform - Reliable CPE Router from Trusted Suppliers & Factory
Product Features
Supports 5G NR/RedCap networks
Supports eSIM
Supports WIFI6 (Optional)
Supports GPS/BeiDou (Optional)
Supports dual SIM cards with mutual backup functionality
Supports Linux system for secondary development, with comprehensive development guidelines provided
Topology Diagram
Technical Parameters
| Hardware Performance | |
| Memory | 512MB |
| FLASH | 4GB EMMC |
| WIFI | Supports 2.4G/5.8G dual-band, theoretical maximum speed of 866.7Mbps. Optional WIFI 6, theoretical maximum speed of 1774Mbps |
| Network support |
5G: N1/N3/N5/N7/N8/N20/N28/N38/N40/N41/N71/N75/N76/N77/N78/N79 4G: FDD-LTE: B1/B3/B5/B7/B8/B20/B28/B32/B71 TDD-LTE: B38/B40/B41/B42/B43/ 3G: WCDMA: B1/B2/B4/B5/B8 Note: Frequency bands not listed can be supported by replacing the module |
| System Time | Time synchronization using NTP technology, with built-in RTC |
| Interfaces | |
| Ethernet Interface | 4 LAN Ports (1000/100 Mbps) – Any of the LAN ports can be configured to operate in WAN mode |
| SIM Card Interface | 2 slots (drawer-type card slot, supporting 1.8V/3V SIM/UIM cards) |
| Reset | 1 (Reset button) |
| Antenna Interface | 4 Ports 4G/5G antenna, impedance: 50 Ω, SMA female head interface 2 Ports 2.4G/5.8G antenna, impedance: 50 Ω, SMA interface |
| Power Interface | 1 x 2-pin connector with 3.81mm pitch |
| Serial Port | 1 x RS232 / 1 x RS485, dual-row 3-pin terminal block with 3.5mm pitch |
| Indicators | 4 (1 PWR Light, 1 SYS Light, 1 WIFI Light, 1 NET Light) |
| Power Characteristics | |
| Power | External power adapter (12V 2A) |
| Operating Voltage | Wide power input DC 9~36V |
| Standby Power Consumption | 300~500mA@12V DC |
| Operating Power Consumption | 500~700mA@12V DC |
| Operating Conditions | |
| Operating Temperature | -35~+75℃ (-31~+167℉) |
| Storage Temperature | -40~+85℃ (-40~+185℉) |
| Operating Humidity | 5%~95% (non-condensing) |
| Device Ventilation | Natural heat dissipation, no noise |
| Physical Characteristics | |
| Casing Material | Metal housing |
| Dimensions | Length*Width*Height 135*98*55.5mm (excluding antenna and installation accessories) |
| Installation Method | Desktop placement, DIN rail installation, wall mounting |
| Weight | Net weight: 0.65KG (excluding antenna and installation accessories) Gross weight: 1.45KG (with accessories and packaging box) |
| Device Safety and Reliability | |
| Security and Reliability | Reverse polarity protection, overvoltage protection, overcurrent protection; Ethernet interface built-in 1.5KV electromagnetic isolation protection; RS232/RS485 interface built-in 15KV ESD protection; SIM/UIM card interface built-in 15KV ESD protection |
| Protection Level | IP30 |
| Certification | Compliant with CCC, Rohs |
| MTBF | ≥100,000 hours |
| Software Features | |
| Cellular Network | Supports 5G or RedCap networks, with options to lock frequency bands and lock network modes |
| 5G LAN (optional) | Supports 5G LAN |
| Bridge Mode | Supports bridge mode, allowing the IP address obtained from the cellular network dial-up connection to be directly assigned to the downstream device |
| WAN Protocol | Supports static IP, DHCP, PPPoE, PPP |
| IP Applications | Supports Ping, Trace, DHCP Server, DHCP Relay, DHCP Client, DNS relay, DDNS, Telnet |
| WIFI | Supports AP mode and STA (Client) mode |
| VLAN | Supports VLAN, including both Tagged and Untagged modes for VLAN ID assignment |
| Multi-link Management | Supports link detection and link backup, with optional flexible backup combinations of 5G, WAN, and Wi-Fi |
| Static Routing | Supports adding static routes |
| Dynamic Routing | Supports dynamic routing protocols OSPF and RIP |
| Policy Routing | Supports policy-based routing for traffic segmentation and load distribution |
| Firewall & Network Security | |
| Firewall | Full-state packet inspection (SPI), DoS attack prevention, multicast Ping packet filtering, port mapping, and IP-MAC binding |
| VPN | IPsec/OPENVPN/L2TP/PPTP/VXLAN/GRE/GRETAP |
| NAT | Supports DMZ and Port Forwarding |
| Address Filtering | Supports IP, domain name, and MAC filtering; Allows configuration of blacklists and whitelists |
| Applications | |
| DTU | Supports TCP, UDP, MQTT, HTTP, HJ212-2017, NTRIP, MODBUS TCP, MODBUS RTU, and MODBUS TCP-to-MODBUS RTU protocols |
| Data Acquisition | Southbound: Supports Modbus RTU/TCP and Siemens S7 protocols Northbound: Supports TCP, MQTT, HTTP, JSON, HJ212-2017; Supports up to 5 configurable servers with different protocols |
| Status Reporting & Retrieval | Supports querying and scheduled reporting of device status via TCP, MQTT, or HTTP, including dial-up status, operational status, and link usage |
| Traffic Statistics | Supports total device traffic and per-IP traffic statistics; Supports bandwidth control for excessive traffic |
| Scheduled Tasks | Supports scheduled reboot and customizable scheduled tasks |
| Cloud Device Management Platform | Supports remote configuration, remote upgrade, and remote monitoring |
| Location Services | Supports cell tower-based positioning; Optionally supports GPS/BeiDou; Can report either Base Station or GPS information |
| SNMP | Supports SNMP v1/v2/v3 |
| WLAN (Optional) | |
| Protocol Standard | IEEE 802.11b/g/n/ac/ax (Optional) |
| Rate | IEEE 802.11ax (Wi-Fi 6) – Maximum speed: 1774 Mbps IEEE 802.11ac (Wi-Fi 5) – Maximum speed: 866 Mbps |
| Security Features | Open system, shared key, WPA/WPA2 authentication; WEP/TKIP/AES encryption |
| Working Modes | AP and Client (WiFi STA) |
| System Settings | |
| Configuration Mode | Supports Telnet, WEB, SSH, and Console configurations |
| Upgrade Mode | Supports WEB upgrade and FOTA upgrade |
| Logging Functionality | Supports local system logs, remote logs, and serial port output logs |
| System Time Settings | Built-in RTC clock; Supports NTP network time synchronization, manual time setting, and GPS time synchronization |
| Maintenance tools | Ping, Route tracing |
| Status Query | System status, modem status, network connection status, route status |
Product Interface
Product Dimensions
Frequently Asked Questions (FAQ)
Does this router support 5G and Wi-Fi 6?
Yes, the device supports 5G NR/RedCap networks and features optional Wi-Fi 6 (IEEE 802.11ax) with a theoretical maximum speed of up to 1774 Mbps.
What is the operating temperature range for this device?
The router is designed to operate in extreme environments, with an operating temperature range of -35~+75℃ (-31~+167℉).
Does it support dual SIM cards?
Yes, it features 2 SIM card slots supporting dual SIM cards with mutual backup functionality to ensure a stable and continuous network connection.
What VPN protocols are supported for secure networking?
The device ensures high network security by supporting a wide range of VPN protocols, including IPsec, OPENVPN, L2TP, PPTP, VXLAN, GRE, and GRETAP.
How can the device be installed?
It offers highly flexible installation methods, including desktop placement, DIN rail installation, and wall mounting to suit various industrial and commercial setups.
Can this router be used for secondary development?
Absolutely. It supports a Linux system specifically for secondary development, and comprehensive development guidelines are provided to assist developers.