Signshine S3721 industrial 4x Lan GPRS Router

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Signshine S3721 industrial 4x Lan GPRS Router is a wireless cellular router by using

GPRS network with industrial grade design and Four Ethernet port and RS232 or RS485/RS422.

Industrial GPRS Router adopts high-powered ARM9 processor and embedded with real time operating system as software support platform, conveniently and transparently connects one device to a cellular network, allowing you to connect to your existing serial and Ethernet devices with only basic configuration.

This GPRS VPN Router has been widely used in M2M/SCADA field, such as power automation,transportation, financial service terminal, factory automation, water, oil&gas, large machine maintenance,environment, building automation, outdoor digital signage ect.



Industrial Design
※Industrial high-powered embedded 32 bits CPU,200MPS;
with 16KB Dcache, high-speed cache data speed up data access speed with
16KB Icache, high-speed instruction cache, enhanced instruction processing speed.
※Industrial high-powered cellular module
※Real time OS Linux 6.2,with MMU and completely full TCP/IP protocol
※Strengthened PCB which follows the principle of 20H and
3W, and adopts health benefits material to ensure the product stability
※Industrial grade rigorous screened components
※Industrial power adapter, wide voltage power supply design,
power range DC7-32 V, reverse-voltage and overvoltage protection
※Ethernet port: 1.5KV magnetic isolation protection
※Housing: iron, providing IP30 protection, radiation protection,
anti-interference, lightning protection design, special for outdoor harsh environmental
Stability and Reliability
※Online maintenance patents: Intelligent anti-dropped, online
test, online maintenance, Automatically restart to ensure that
equipment is always online
※Three-tier system protection, based on the system protection
of software protection and WDT, It supports VWM (Virtual Man Watch)function
※SIM/UIM port: 1.8V/3V/5V standard putter user card interface 15KV ESD protection
※Serial RS232 port: 15KV ESD protection
※All cellular modules are certified by CGD/CE/FCC certificate
※High-speed processing CPU: ARM9 industrial-grade high-speed CPU, can higher
speed handle a variety of protocol data transfer; solve the "fake online", "fake death", "crash" and other difficult problems.
※Large memory: FLASH64Mbits, SDRAM, 256Mbits, a large memory to cache data sent by
customer, meanwhile receiving large packets, no data lose.
※Complete protocol stack: the system loaded complete TCP / IP protocol stack, using
comprehensive TCP / IP protocol stack; so that network traffic performance shows outstanding, the drop-line probability dramatically reduced
※EMC performance outstanding: passed 3000V electrical shock test, especially suitable for use under harsh industrial environments; system EMC / EMI performs excellent, system stable and reliable; passed EMC test;

High Performance
※Supports Ethernet data communication and packet forwarding, also supports serial port
TCP / UDP transparent data transmission or serial configuration
※Support VPN tunnel, including PPTP, MPPE, L2TP, GRE and IPSEC
※Intelligent anti-dropped, support online testing, online maintenance, automatic redial,
router is always on-line
※Support IPTABLES firewall, packet filtering
※support Regular on-line offline functionality, can set the device on-line and offline in a
certain period of time
※Support a variety of trigger and offline modes, including text
messages, phone ringing, serial port data, network data trigger and offline mode
※Support dynamic routing and static routing, RIPv1, RIPv2,
※Support multiple protocols: TCP / IP, UDP, ICMP, SMTP, HTTP, POP3, OICQ, TELNET, FTP, etc.
※Support DHCP / DHCPD functionality
※Supports NAT port mapping function, such as SNAT, DNAT
※Support DDNS(Dynamic Domain Name Server): support ORAY, 88IP, and DYNDNS
domain name service provider
※Support DMZ
※Support the APN / VPDN network
※Convenient WEB configuration, Remote WEB Management
※Support WEB configuration save and restore to achieve the
rapid deployment parameters backup and batch of equipment
※Support telnet management, user-friendly console shell interactive environment
※Support multiple terminals sharing router ppp wan
※Support multiple wireless dial-up mode: automatically
assigned, specify the IP, specify local and remote IP
※Support both LINUX and WINDOWS operating systems
※Support as a PPP server, multiple authentication methods,
※support mutual authentication
※Easy to use COM and SYSLOG System diagnostics, debugging
※Support Serial port local software upgrades
※Supports TFTP remote software upgrade
※Support real-time clock

Easy to Use
※Factory default configuration parameters, customers need only
to modify some parameters, do not even need to change any
parameter, you can quickly use the equipment
※After eight years of sedimentation, equipments are completed and easy of use.
※Graphical configuration tool: improved graphical configuration
tool that provides rapid deployment capabilities for customers
to achieve rapid deployment; provides bulk configuration.
※ Product manual offers quick configuration instructions, you can quickly setup the equipment
※software checking : Provides SYSLOG log output function, can be used as equipment
work logs and help to analyze the reasons for exceptions; Provides the serial port debugging
log, providing different levels of debugging output, enabling customers to view a variety
of information, quickly locate the problem.

Typical Application

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