Moxa NPort 5210A 2-Port Serial Device Server

Name: Moxa NPort 5210A 2-Port Serial Device Server
Brand: MOXA
SKU: NPort 5210A

Two RS-232 ports on one network address, with dual power inputs

The Moxa NPort 5210A is a two-port RS-232 serial device server that connects two serial devices to a 10/100 Ethernet network. It gives PC software direct access to each port through Real COM or TTY drivers, or exposes the ports to host applications in TCP Server, TCP Client or UDP mode. Compared with a one-port unit it adds COM port grouping, which lets one application write to several physical ports at once, and dual DC power inputs, a power jack and a removable terminal block, so that two supplies can be connected. Surge protection on the serial, Ethernet and power lines is tested to IEC 61000-4-5, and a three-step web console is used for setup.

Technical specifications

Parameter	Specification
Ethernet	1 x 10/100BaseT(X) RJ45, 1.5 kV built-in magnetic isolation
Serial (NPort 5210A)	2 x RS-232, DB9 male; TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
Baud rate / format	50 bps to 921.6 kbps; data bits 5-8; stop bits 1, 1.5, 2; parity none, even, odd, space, mark
Flow control	RTS/CTS, DTR/DSR, XON/XOFF
Operation modes	Real COM, Reverse Telnet, RFC2217, TCP Server, TCP Client, UDP, Pair Connection, Ethernet Modem, Disabled
Management	Web console (HTTP/HTTPS), Windows utility, Device Search Utility, MCC Tool, Telnet, SNMPv1/v2c, DHCP, DNS, SMTP, LLDP
Drivers	Windows Real COM, Linux real TTY, macOS fixed TTY, Android API 3.1.x and later, others per datasheet
Security	Local authentication, HTTPS (TLS 1.2), AES-128, SHA-256, RSA-1024
Power	12 to 48 VDC, 2 inputs (power jack and removable 3-contact terminal block); 119 mA at 12 VDC; watchdog timer
Housing	Metal; 100 x 111 x 26 mm with ears, 77 x 111 x 26 mm without; 340 g
Installation	Desktop, wall mount or DIN rail with optional kit
Operating temperature	NPort 5210A: 0 to 60 deg C; NPort 5210A-T: -40 to 75 deg C
Approvals / MTBF	EN 62368-1, IEC 62368-1, UL 60950-1, EN 55032/35, FCC Part 15B Class A, RoHS, CRoHS, WEEE / 847,750 hrs; 5-year warranty

NPort 5200A models

Model	Serial standard	Connector
NPort 5210A / -T	2 x RS-232	DB9 male
NPort 5230A / -T	2 x RS-422/485	5-pin terminal block
NPort 5250A / -T	2 x RS-232/422/485	DB9 male

The -T versions work from -40 to 75 deg C. Regional power adapters are supplied with the standard models.

Selection and use

Use the 5210A where both devices are RS-232, for example two meters or a PLC programming port and a printer. RS-485 field buses need the 5230A or 5250A, which include automatic data direction control. The single-port NPort 5110A is cheaper per port but has one connection only, and units with four ports are covered by the NPort 5400 range. Keep each serial cable short at high baud rates and make sure the device and the NPort use the same data format. Restrict the web console with a password and fixed IP. Seven Star LLC, an independent supplier in Muscat, quotes the exact model; confirm serial standard, connector type and temperature range before ordering. The datasheet (version 1.11) is attached, and related products are in Industrial Communications. The datasheet lists immunity levels such as 8 kV contact ESD, 2 kV power surge and 1 kV signal surge, which you can compare with the site specification. The two ports are independent, so each can use a different mode, baud rate and parity. Both power sources can be connected together; the unit remains powered if one fails, and the watchdog timer reboots it automatically if firmware hangs.

How the Moxa NPort 5210A works

The NPort 5210A links serial devices to an Ethernet network. Each serial port gets a network address and port number. In Real COM mode a driver on the PC creates virtual COM ports, so old serial software keeps working as if the device were plugged in directly. In TCP or UDP modes, host programs open a socket to the port instead. The unit passes the data in both directions and keeps the serial settings you set.

Where the NPort 5210A is used

PLCs and meters with RS-232 ports
Barcode readers and scales
Instruments in plant networks
Remote console access
Retrofits of serial equipment

Selection checklist for the NPort 5210A

Number of ports: two
Serial standard: RS-232
Operating mode needed
Baud rate up to 921.6 kbps
Standard or wide temperature version
Power: 12 to 48 VDC
Mounting: desktop, wall or DIN rail
Driver support for the host system

Installation, commissioning and maintenance notes for the NPort 5210A

Connect the unit to the network and to a 12 to 48 VDC supply. Find it with the search utility and set its address. Choose the operating mode, then match the baud rate, data bits, stop bits and parity to the device. Use the web console over HTTPS and save the configuration file.

Requesting a quotation for the Moxa NPort 5210A

Please send the model, the power adapter region, the mounting kit and the quantity. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

NPort 5210A serial ports

It has two RS-232 ports on DB9 male connectors with full modem control lines.

NPort 5210A operation modes

Modes include Real COM, Reverse Telnet, RFC2217, TCP Server, TCP Client, UDP and Pair Connection.

NPort 5210A network

One 10/100 Ethernet port on RJ45 has 1.5 kV magnetic isolation.

NPort 5210A power

Two power inputs, a jack and a terminal block, allow a second supply.

NPort 5210A housing

The metal housing measures 77 by 111 by 26 mm without ears and weighs 340 g.

Network records for the NPort 5210A

Record the address, the mode and the serial settings of each port.

Choosing the right NPort 5210A version

Choose the wide temperature version for hot or cold sites, from minus 40 to plus 75 degrees C.

NPort 5210A COM port grouping

Grouping lets one application write to several physical ports at once.

NPort 5210A security

The data sheet lists local authentication, HTTPS with TLS 1.2 and AES-128 encryption.

NPort 5210A installation options

The unit can sit on a desktop, hang on a wall or mount on a DIN rail with the optional kit.

Moxa switches and converters listed here

The EDS-G508E is a managed switch with eight Gigabit ports from the EDS managed line. The EDS-316-MM-SC-T is a 16-port unmanaged switch with 14 copper ports, two multi-mode SC fiber ports and the wide-temperature option (-40 to 75 C). The TCF-142-S-SC-T belongs to the TCF-142 series, which converts RS-232/422/485 serial signals to single-mode fiber. Moxa also makes serial device servers, protocol gateways, wireless devices and industrial computers, used on SCADA and telemetry networks across the GCC.

Ordering Moxa devices: what we need

The suffixes carry the specification. Send the complete model name, including fiber mode and connector (MM-SC, SS-SC, ST), the -T wide-temperature suffix and any coating or approval suffix. Add the power supply voltage, the SFP modules needed and the quantity.