NS304DN high-performance four-port serial server is the ideal choice for modern industrial and commercial data communication field with its powerful functions, flexible configuration, high-speed and stable transmission performance, and convenient management.
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SP304DN Serial Server 4-port RS232/485 to Ethernet
#175
Product Highlights
Support 4-way RS232/485 to Ethernet, 4 serial ports are independent of each other, do not affect each other
Support Modbus RTU to TCP, support for virtual serial port
Support TCP Server/TCP Client/UDP/UDP multicast/HTTPD/parallel mode, etc.
Support customized packet length and interval, etc.
Industrial-class design, EMC three-level protection, stable and reliable.
SP304DN Serial Server 4-port RS232/485 to Ethernet
Specifications
Product Model
SP304DN
CPU Platform
32-bit ArmCortex-M7 core, up to 400MHz main frequency
Serial Port-Port Number
4 way RS-485/RS-232
Serial port-Interface Form
RS-232/RS-485 interface: 5 position 3.81mm or 5.08mm pitch industrial grade terminal block
RJ45 Network Port - Port Number
1×10Base-T/100Base-TX, support for automatic flow control, full-duplex/half-duplex communication mode, and MDI/MDI-X automatic identification
Serial Port - Communication Rate
600~460800bps
Serial Port - Data Format
support for data bits:8 bits, stop bit: 1~2 bits, parity bit: no parity / ODD odd parity/EVEN even parity
RJ45 Network Port-Isolation Protection
6KV lightning protection, 1.5KV isolation protection
Power
External DC: DC9~36VDC, power interface supports BNC connector (φ2.5mm) and 2 position pitch industrial grade terminals, and supports anti-reverse connection
Power Consumption
66mA（@12VDC）
ESD Indicators
±8kV contact discharge, ±15kV air discharge
IP Grade
Surge Protection: Power : ±2kV/common mode, ±2kV/differential mode RS485/422: ±2kV/common mode, ±2kV/differential mode Network Interface: ±6kV/common mode, ±2kV/differential mode EFT Test: Power: ±2kV, Communication Port: ±2kV
Product Certifications
CE,FCC,RoHS
Dimensions
207mmX112mmX34.2mm
Operating Temperature
-40°C~+85°C
Storage Temperature
-40°C~+85°C 5%~95%RH (no condensation)
Networking protocals
IPv4、TCP、UDP、Modbus、ARP、ICMP、DHCP、DNS、HTTP、RFC2217
Configuration mode
WEB page configuration
Simple pass-through
TCP Server/TCP Client/UDP/UDP Multicast/RealCom/Pair connection
Serial Data Packing Mechanism
Interval and length can be set;Maximum packetization length is 1460bytes
Number of Client connections
Support up to 8 TCP Client connections in TCP Server mode.
Network Cache
Send: 16Kbyte Receive: 16Kbyte
Serial Port Cache
Send: 1.5Kbyte Receive: 1.5Kbyte
JSON
JSON is supported in Httpd Client, WebSocket Client, and MQTT mode
Heartbeat Packets
Support for TCP Keepalive mechanism
The average transmission delay
<10ms