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Equipment with a serial port is usually connected directly to the computer when the distance is less than 15 meters.
With a serial port server (Serial Device Server), the equipment can be connected anywhere on a network so that all network users can use them. This applies to both local and internet. When connected over the Internet, the reach becomes global.
It has the task of making a serial port available on a network. It is a compact computer that has an Ethernet network interface and one or more serial ports. Its firmware is only for sending data from the network to the proper serial port and transmitting data received on serial ports to the network. The protocol is TCP / IP (Internet Protocol), so even a serial port server with many ports has only one IP address and each serial port has its own port number.
Three communication methods
In principle, it can be communicated with serial port servers in 3 different ways:
Used if there is no computer with network function available. The two serial port servers are configured to send data to the counterpart. They are defined as "Master" and "Slave", each with its own IP address and the counterparty's IP address. In principle, it is a fixed connection between the serial ports and it is important that the connection be independent of operating systems and software versions otherwise used on the network.
The "Box to box" method is also the only usable solution in cases where the system cannot include software that uses "sockets" or COM port drivers, for example. a PLC and a simple measuring port with serial port.
In all common programming languages for Windows (Visual C ++, Visual basic, Delphi and others), TCP / IP is accessed via "Winsock", releasing the programmer to kno
This method assumes that the applications using the serial port server have access to the network via the TCP / IP protocol using the networking features built into Windows. It is the standardized interface for these features called "Winsock".
In all common programming languages for Windows (Visual C ++, Visual basic, Delphi and others), TCP / IP is accessed via "Winsock", releasing the programmer to know all the details of the underlying network protocols.
Once the protocol, IP address, port number and client / server status are selected, free-form data blocks can be exchanged between the program and the serial port server.
There are a variety of variants among serial port servers. The number of serial ports per. unit varies from 1 to 16, and the serial ports can be traditional RS232 ports with "point to point" connection up to approx. 15 m or RS422 ports with balanced "point to point" signals up to approx. 1200 m and RS485 ports, for "multidrop" connection, where up to 32 serial ports can share the same 2- or 4-wire bus. Here, the range will also be up to 1200 m.
Most serial port servers use the wired Ethernet network interface, others use wireless networks (Wifi) or fiber optic cable, where the network connection is via fiber optic cable.
External COM port via Ethernet and Internet
Can also provide Pair connection (back-to-back)
Small size for easy installation
Genuine COM / TTY drivers for Windows and Linux
Standard TCP/IP interface and versatile operating modes
Easy-to-use Windows multi-device server configuration tool
Built-in 15 KV ESD protection for all serial signals
SNMP MIB-II for network management
Configure via Telnet or web browser
Power supply included
Moxa MGATE 3180 1port RS232/422/485 Modbus TCP to serial.
4 COM ports via optical fiber cable
point to point or pount to 4 points
4 x RS232 ports up to 2km with multi mode cable
4 x RS232 ports up to 20km with single mode cable
Buy 100Mbit SFP Module (Multi Mode or Single Mode)
1 x 100 Mbit SFP for LC Duplex Fiber cable
4 x RS232 DB9 male connector
Setup via built-in Web server
62 x 50 x 120 mm
DIN fittings
Display 3 LEDs Displays TX / RX, Network and System Status
Supply voltage: 9 - 32VDC Redundant (not supplied)
8 pcs. External COM ports via Ethernet and Internet
Virtual-Com Port, Pair-Mode - Back to Back
Socket Modes: TCP Server / TCP Client / UDP
easy to configure
cables Not included (RJ45 for DB9)
Supports Win10 and earlier us, Linux
Seriel port: 2 x RS232, 1 x RS232/485 maks. 115 Kbps
Signaler: RS232: Rx , Tx , RTS , CTS
RS485: Data +, Data - (2-leder halv duplex)
Digital I/O: 6 indgange og 2 udgange TTL
Protokoller: TCP, PPP
Stik til digital I/O: Skrueterminaler
3/5V SIM kortholder indbygget
3 lysdioder viser GPRS- og systemstatus
Strømforsyning: 9 - 35 VDC maks. 4,8 Watt. medfølger ikke
Leveres med beslag til DIN skinne
Rest storage
Your bracket in Alu
can be used up other devices
16 ports RS232/422/485 Serial Device Server
10/100Mbit
MOXA NPort 5650-16
19" Rack mount
Seriel Port Server
16 Ports RS232 Serial Port Server
Universal Serial Device Server
MOXA NPort 5610-16
19 "Rack Mount
External COM port via Ethernet and Internet
Nport RS232 serielportserver 12-48VDC with extended temperature.
External COM port via Ethernet and Internet.
1-port RS-232 serial device servers
External COM port via Ethernet and Internet - for fiber cable
SerialportServer 1 x RS232 / 422/485
Fiber is 100Mbit SFP (Single Mode or Multi Mode)
1-Port RS-422/485 to Ethernet device server
1x 10/100 Mbps RJ45 LAN
DB9 male or 5-pin terminal block serial connector
Baud rates: 300 to 115.2 kbps
Configurable: 6/7/8 data bits, 1/2 stop bits, parity None/Odd/Even
Built-in watchdog for reliable 24/7 operation
Wide power input: 7–40 VDC (DC jack) / PoE (48 VDC via Ethernet)
Industrial metal enclosure, ~300 g
Operating temp 0–55 °C; humidity 5–95% RH
IS model adds 2.5 kVrms isolation & 500 W surge protection
External COM ports via Ethernet and Internet
Serial device server to RS232/422/485 with WIFI
Device server til multimode fiber med RS232/422/485 serieport
External COM port over Ethernet and Internet
RS232/422/485
Baud rate: 1200 - 230.4kbps (2-wire)
Max. baud rate at 4-wire RS485 up to 921.6kbps
Atop SE5201-DB Serial Device Server
10/100Mbit Ethernet.
Serial port via DB9 male connector
Supports TCP Server/Client, UDP, Virtual COM and Tunneling modes
Power is supplied from 9 - 30VDC or 5VDC (power jack)
Power supply not included
DIN kit (option)
Dimensions: 65 x 78 x 28mm (without wall bracket)
Dimensions: 88.5 x 84 x 27.8mm (with wall bracket and DB9 port)
External COM port and DI / DO via Ethernet and Internet
built-in web server
3 x Shift relays Expanses Max. 30 VDC 1A
3 x digital contact inputs
1 x RS232 (DB9 Male), RS422 or RS485 (screw terminal)
1 x Ethernet 10 / 100Mbit
Power supply from 9 to 24 VDC
Monitor, manage and manage industrial devices
2 x SFP slot for fiber transceiver (SM or MM)
Industrial EMC protection, temperature operation wide, -40 ° C ~ 85 ° C
fast- Ethernet 2 x 100/1000 SFP slots with RSTP Redundans
4 software Select RS232 / RS485 / RS422 serial ports, up to 921Kbps
TCP Server / Client, UDP, Virtual com and tunneling modes are supported
Embedded security with PPTP, IPSec or OpenVPN Client / Server
Redundant 12 ~ 48 VDC Power entries
Configuration via Web Browser / Serial Console / Telnet / Windows Utility
Robust metal cabinet with wall or DIN rail mounting
Monitor, manage and manage industrial devices
1 x RJ45 Ethernet port
2 x SFP slot for fiber transceiver (SM or MM)
Industrial EMC protection, temperature operation wide, -40 ° C ~ 85 ° C
Fast-Ethernet 2 x 100/1000 SFP Slots with RSTP Redundancy
4 software Selected RS485 / RS422 Serial ports, up to 921Kbps
TCP Server / Client, UDP, Virtual com and tunneling modes supported
Embedded Security with PPTP, IPSec or OpenVPN Client / Server
Redundant 12 ~ 48 VDC Power Entries
Configuration via Web Browser / Serial Console / Telnet / Windows Utility
Robust Metal Cabinet with wall or DIN rail
Modbus over the Ethernet or Internet
MODBUS server with 1 x RS232 and 1 x 422/485
Can run Device to Device
0/100 Mbps Ethernet port, auto MDI / MDIX, 10/100 auto, 1500V magnetic insulation only on
RS485 RS232 Modbus ASCII / RTU port, 1 RS422 / 485 Modbus ASCII / RTU port, 16V / 400W TVS isolated, RS485 automatic line control
9 ~ 30VDC power input, IP30 enclosure , DIN rail mounting structure, USB port (Modbus serial port expansion and capture of memory)
