The ZR5821-D multi-mode 3G broadband router from Smart Link IoT is an IoT wireless communication router that utilizes mobile broadband networks to provide users with convenient and fast network transmission capabilities.
This series of products adopts a high-performance industrial-grade 32-bit communication processor, supported by an embedded real-time operating system, to provide users with a secure, high-speed, and stable 3G/4G wireless routing network, offering 4 LAN ports, 1 WAN port, 485/232, and WIFI interfaces.
This series of products has been widely applied in industries such as finance, postal services, smart grids, intelligent transportation, environmental monitoring, fire monitoring, security monitoring, water conservancy monitoring, public safety, advertising distribution, industrial control, earthquake monitoring, meteorological monitoring, and instrument monitoring.
Product Features
Industrial-grade Design
? High-performance industrial-grade wireless module
? High-performance industrial-grade 32-bit processor
? Supports low-power modes, including sleep mode and scheduled online/offline
Scheduled power on/off mode
? Cold-rolled steel shell
? Power supply: +7.5V~32V DC (maximum 36V)
? Protection level: IP34 (can handle up to IP51)
Network Features
? Port traffic detection
? Real-time link monitoring
? Multiple VPN protocols (PPTP, L2TP, IPSec, VPN)
? Serial DTU function support
? Supports on-demand dialing (voice, SMS, or data-triggered)
? Supports UPnP
? Transmission rate up to 150Mbps~300Mbps
Stable and Reliable
? Uses software and hardware watchdog and multi-level link detection mechanisms, with automatic fault detection and recovery capabilities, ensuring stable and reliable operation of the device
? Multiple device self-check mechanisms to ensure smooth links and alarms
? ESD protection for each interface to prevent static electricity impacts
? Equipped with wireless network signal indicator lights, showing three levels of onsite signal strength
Remote Management
? Supports remote parameter configuration
? Supports remote parameter backup
? Supports remote reboot and log query
? Supports local remote platform firmware device upgrade
? Supports online monitoring of devices and real-time traffic monitoring
? Supports SMS wake-up mode
Functional Features
? Simultaneously supports 4G (FDD and TDD) LTE networks, backward compatible with HSUPA/EVDO/GPRS various network standards
? Supports 1 WAN + 4 LAN, providing standard RS-232 /RS-485 interfaces
? Supports WIFI, complying with IEEE802.11b/g/n
? Supports wired and wireless network backup
? Supports hardware WDT, providing a drop-off prevention mechanism to ensure data
Terminal Online
? Supports multiple VPN protocols such as PPTP, L2TP, GRE
? Supports SNMP management protocol
? Supports WI-FI forced advertising push function
? Supports DHCP, DDNS, firewall, NAT, and DMZ host functionalities
? Supports network protocols such as ICMP, TCP, UDP, Telnet, FTP, HTTP, HTTPS
? Anti-theft and anti-drop SIM/UIM card design
Extended Functions
? Supports dual-mode dual-card. Adopts a dual-mode dual-card design that operates simultaneously, with SIM card switching taking only 5-6 seconds, allowing for transmission based on SIM card signal strength or primary/secondary card modes, supports wired to wifi, 4G to wifi, supports wired/wireless dual backup【optional】
? Supports single-mode dual-card【optional】
? Supports GPS/Beidou positioning. Enables centralized location management and maintenance of devices【optional】
? Supports internal storage expansion, 2GB-32GB【optional】
M2M Management Cloud Platform for Unified Centralized Management
? Device fault alarm, improving online rate for devices in remote areas
? Operation upgrades, automatic fault recovery, ensuring smooth transmission channels, enhancing large-scale management
? Multiple encryption technologies to ensure the security of communication link data
? Remote management and maintenance of devices, reducing operation and maintenance costs, improving efficiency
? Supports network management functions, controllable and manageable traffic, reducing operation and maintenance costs
? Automatically generates business statistical reports, providing strong support for operational decision-making
Product Specifications
Wireless Parameters
Wireless Module: Industrial-grade wireless module
Standards and Frequency Bands: FDD-LTE (Band1/3/5)
TDD-LTE (Band38/39/40/41), TD-SCDMA (Band34, Band39)
HSPA (900/2100MHz)/ GSM850/900/1800/1900MHz
EV-DO & CDMA 1X (800MHz)
Theoretical Bandwidth: FDD: 100/50Mbps, TDD: 61/18Mbps
Transmitting Power: <24dBm
Receiving Sensitivity: <-109dBm
WIFI Wireless Parameters
Standards and Frequency Bandwidth: Complies with IEEE802.11b/g/n standards, with high-speed rates up to 150Mbps/300Mbps【optional】
Security Encryption: Supports multiple encryption methods such as WEP, WPA, WPA2, optional WPS functionality
Transmitting Power: 16-17dBm (11g), 18-20dBm (11b), 15dBm (11n)
Receiving Sensitivity: <-72dBm @54Mbps
Interface Type
LAN: 4 Ethernet interfaces (RJ45 socket), adaptive MDI/MDIX, built-in electromagnetic isolation protection
WAN: 1 WAN port, adaptive MDI/MDIX, built-in electromagnetic isolation protection
Industrial Interface: 1 communication RS485/RS232 interface, suitable for collection devices with RS485/232 interfaces
Indicator Lights: Contains "WAN", 4 X "LAN", "WLAN", "NET" indicator lights, where the "NET" light is a tri-color light
(Red: Poor network signal; Orange: Average network signal; Green: Good network signal)
Antenna Interface: 3 standard SMA antenna interfaces (WIFI/GPS and 2 x 3G), characteristic impedance 50 Ohm
SIM/UIM Interface: SIM/UIM card engineering cover, protecting the card from falling out. 1.8V/3V automatic detection
Power Supply Interface: 7.5V~32V (standard DC12V/1.5A), built-in power instant over-voltage protection
Reset Button: This button can restore the router's parameter configuration to factory settings
Power Supply
? Standard Power: DC 12V/1.5A
Physical Characteristics
? Shell: Aluminum alloy shell
? Dimensions: 150×102×25.5mm
? Weight: Approximately 530g
Other Parameters
? CPU: MIPS32 74K Core. 533MHz/560DMIPs
? Flash/RAM: 64Mb / 256Mb
? Operating Temperature: -30~+75℃
? Storage Temperature: -40~+85℃
? Relative Humidity: < 95% non-condensing
Shenzhen Smart Link IoT Technology Co., Ltd.
Product Consultation Hotline: 13392860182 Yi Gong
QQ: 97047828
