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Serial Port Servers
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.
Serial Device Servers
It has the task of making a...
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.
Serial Device Servers
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:
- The "Winsock" method
- "Virtual com driver" method
- "Box to box" method
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
The "Winsock" method
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.
Many types and variants
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.

Serial Port Servers
Subcategories
There are 46 products.

1 serial port server with RS232 or 422 or 485. Serial Device Server. Virtual COM port. Pair connection
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

1 serielportserver RS232 port, MOXA Nport 5110A. Serial Device Server
External COM port via Ethernet and Internet
Nport RS232 serielportserver 12-48VDC with extended temperature.

DIN rail bracket for mounting on modules.
Rest storage
Your bracket in Alu
can be used up other devices

1 PORT SERIAL PORT SERVER RS232 / 422/485 with 3 x digital input, 3 x relay. 1 x RJ45. 9 - 24VDC.
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

1 Port Serial port server RS232, MOXA NP5110-EU. Serial Device Server
External COM port via Ethernet and Internet.
1-port RS-232 serial device servers

1 port serial server RS232 / RS422 / RS485. Serial Device Server RJ45, DB9, 9 - 30VDC
External COM port over Ethernet and Internet
RS232/422/485
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)

Moxa 1 ports industriel serieportserver NPort Server Lite (Moxa DE-301)
MOXA

4 Ports RS232 Extender over fiber cable 1200 - 115Kbps, 4 x DB9 male connector. 100Mbit SFP Multi Mode or Single Mode.
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)

1 serielportserver port RS232 / 422/485, DE-MOXA 211 Serial Device Server
External COM ports via Ethernet and Internet
3-in-1 Serial Port: RS-232, RS-422, OR RS-485
Modes: TCP Server, TCP Client, UDP
Ethernet Modem
Pair Connection
Real Com / Tty Drivers for Windows and Linux
2-wire RS-485 with Patented Automatic Data Direction Control (Addc®)
Built-in 15 kV ESD Protection for All Serial Signal

1 PORT MODBUS serial port server, RS232 / RS422 / RS485 Modbus over Ethernet. Can run Modbus TCP Master
MODBUS
Serial Device Server
1 x RS232 / 422/485 port
Atop MB5001C
WIN XP / 7/8 / WIN 10
Web Server Config.
9 ~ 30 VDC

2 Ports serial port server, 2 x RS232 / 422/485, LAN and WiFi. Serial Device Server over Ethernet. 9 - 48VDC.
External COM ports via Ethernet and Internet
Serial device server to RS232/422/485 with WIFI

1 port RS485 / 422 Serial port server. Serial Device Server with RS422 or RS485 can be PoE supplied
1 port RS422 or RS485 serial port with PoE via Ethernet and Internet

1 port serial port server via fiber network RS232 / 422/485, SFP module
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)

4 Ports Serialport Server RS422 / RS85, Moxa Nport 5430. Serial Device Server
External COM ports via Ethernet and Internet
Easy IP Address Configuration with LCD Panel
10 / 100Mbit Auto-Sensing Ethernet
4 Serial Ports, With Support for RS422, and RS485 < Br> Built-in 15 kv ESD Surge Protection for All Serial Signals
Versatile Socket Operation Modes, Including TCP Server, TCP Client, and UDP
Choice of Configuration Methods: Web Console, Telnet Console, and Windows Utility
SNMP MIB-II for Network Management
-40 to 75 ° C Operating Temperature

1 port serielportserver via multimode fiber, RS232 / 422/485, up to 2km from fiber switch
Device server til multimode fiber med RS232/422/485 serieport

MOXA 2 ports RS232 industriel serielportserver
Serielportserver 2 x RS232 / 422 /485 MOXA Nport 5210
Compact design for easy installation
Socket modes: TCP server/TCP client/UDP
Easy-to-use Windows utility for configuring multiple device servers
Supports 10/100M Ethernet
Patented ADDC® (Automatic Data Direction Control) for 2-wire and 4-wire RS-485
SNMP MIB-II for network management

1 port serial port server RS422 / 485, MOXA NPort 5110A. Serial Device Server
1-port RS422/485 serial device server, MOXA NPort 5110A
Only 1 W power consumption
Speedy 3-step web-based configuration
Surge protection for serial, Ethernet, and power lines
COM port grouping and UDP multicast applications
Screw connectors for secure installation
Real COM/TTY drivers for Windows and Linux
Standard TCP/IP interface and versatile TCP and UDP operation modes
Connect up to 8 TCP hosts

1 port serial port server RS232, POE or 12-48VDC. Serial Device Server
External COM port via Ethernet and Internet
RS232 Serialport via DB9 male
Power supplied from PoE
can be powered from 12 - 48VDC / 1.7 watts
Short Power Jack Pigtail Cable included
Purchase Power supply, not included
1 x RJ45 with PoE input
DIN mount
Operating temperature: -25 - + 75 ° C
Dim: 90 x 52 x 27 mm

Ports 2 MODBUS serielportserver 1 x RS232 + 1 x RS422 / 485th Serial Device Server Box Box option
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)