Product Overview 
 DLK-R350 CDMA router is Shenzhen Branch Chong Communication Technology Co., Ltd. based on the CDMA network, using the latest ARM hardware platform, use the Linux software system used the latest technology developed by a new, more excellent performance of wireless router products . The use of industrial-grade design standards, it is mainly used in industry user's data transmission services. 
 The product uses high-performance 32-bit embedded processors, embedded in a complete TCP / IP protocol stack, provide RS serial port and 10/100M Ethernet interface. Respectively serial RS-232 (Model DLK-R351), RS-485 (Model DLK-R352), TTL (Model DLK-R353) level interface, transparent transmission mode, support for VPN communication using IPSec / PPTP VPN technology , enterprise-class VPN tunneling and firewall technology to ensure high security data security industry, to support automatic line detection, real-time dynamic refresh the network, keeping the link smooth, stable product performance, small size, easy to install embedded, the ability to resist environmental other advantages, welcomed by users. 
 Supports WEB / Telnet / Console variety of configurations, including graphical user face is the WEB management interface preparation and management easy and convenient. It is mainly for power system automation, industrial monitoring, traffic management, finance, securities and other industry applications, the use of wireless data network platform data transfer. 

 Industrial applications 
 Finance: Bank savings point of the engine room surveillance, mobile securities trading and information search 
 Communications: telecommunications room power environmental monitoring, communications, maintenance personnel line data inquiries 
 Transportation: CDMA / SMS / GPS motor vehicle monitoring and dispatching system; bank armored cars, monitoring and dispatching postal truck 
 Public Security: public security, 110, traffic police vehicle monitoring and dispatching, police mobile data (identity, criminal files, etc.) information, mobile data traffic (vehicles, drivers, files, etc.) query 
 Heat: real-time monitoring and maintenance of thermal systems 
 Power: the city grid power system real-time monitoring and automatic compensation, remote automatic meter reading 
 Company: Mobile office and management, and other field staff mobility data query 
 Industrial: Industrial remote sensing, telemetry, remote control information return 
 Weather: Weather data collection and transmission 
 Water: hydrological monitoring 
 Life: real-time data acquisition Gas regulator station automatic control, water, sewage pipes, gates, pumping stations and water to maintain real-time monitoring 
 E-commerce: support B2B, B2C e-commerce and electronic payment, stock trading 

 Features 
 ◆ Built-in wireless module ZTE's MC8331A, and embedded TCP / IP protocol stack 
 ◆ smallest of similar products for embedded integration and energy-saving mode, suitable for mobile devices 
 ◆ Powerful VPN communication using IPSec VPN technology, enterprise-class VPN tunneling and firewall technology to ensure the high security industry data security 
 ◆ the use of industrial-grade design standards, superior waterproof, moisture, lightning, electromagnetic interference 
 ◆ Supports TCP / IP, UDP, TELNET, FTP, HTTP and other network protocols 
 ◆ good firewall, support IP and MAC address binding, virtual host, port mapping, content filtering 
 ◆ completely transparent transmission mode, to minimize the input update 
 ◆ Network Address Translation, NAT Traversal, enhancing the compatibility of network equipment 
 ◆ completely transparent transmission mode, data radio can completely replace the original system without any changes, system updates to minimize the input 
 ◆ use good encryption and digital network technology, interface aesthetics, performance, reliability, compliance with international standards of technical indicators 
 ◆ support for Wi-Fi capabilities (extensions) 
 ◆ Powerful VPN communication function, support for PPTP, IPSec 
 ◆ 10/100Base-TX Ethernet interface, Ethernet port adaptive 10M/100M 
 ◆ Real-time dynamic refresh, effective solution to the wireless network "false connection" phenomenon 

 Technical parameters 
 RF characteristics: 
 CDMA protocol: CDMA2000 1X Rev0 
 Frequency Range: 800M (TX 824 ~ 849MHz RX 869 ~ 894MHz) 
 Data Services: IS-707A 
 Data transmission rate: Up to 153.6kbps 
 Transmit and receive frequency interval: 45MHz 
 (450MHz, and other special frequency can be customized) 

 Electric power consumption: 
 Input voltage: DC5 ~ 25V (standard 9V power supply) 
 SIM card operating voltage: 3V/1.8V 
 Current consumption: 
 Talk mode: 300mA (average) 
 Power: 3W (average) 

 Network features: 
 Network Type: CDMA 
 Maximum transfer rate: 14.4KBPS 

 VPN features: 
 Firewall throughput speed: 100Mbps 
 VPN encryption speed: 5M ~ 200M bps 
 Number of concurrent sessions: 8192 ~ 327,680 seconds 
 New sessions: 2250 - 45000 
 The number of VPN tunnels: 100 ~ 5000 
 Key exchange algorithm: diffie-hellman 
 HASH algorithms: SHA-1 MD5 
 Complete answer key forward secrecy (PFS) 
 Authentication mode: Preshare password 
 VPN network Type: Intranet support network to network 
 VPN machine access: Remote Access VPN 

 Volume: 
 Without mounting holes and interface: 87.5 * 52 * 23mm 
 With mounting holes and interface: 104 * 72 * 23mm 
 Weight: 400g 

 Interface: 
 LAN ports: 10/100Base-TX 
 Serial: Standard RS-232/RS-485/TTL level, DB9 Interface 
 Antenna: 50ohm/SMA/Female 
 Configuration interface: WEB 

 Environment: 
 Operating temperature: -40 ℃ ~ 75 ℃ 
 Automatic shutdown:> / +70 ℃ 
 Storage temperature: -50 ℃ ~ 85 ℃ 
 Humidity: ≤ 90% 
 Magnetic compatibility: Electrostatic discharge immunity test level: 3 
 Radio frequency electromagnetic radiation: the immunity test level: 3