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Brand: MOXA
Moxa NPort 5232 2-Port RS-422/485 Serial Device Server
Description
What the NPort 5232 gives a serial instrument
Moxa describes the NPort 5232 as 2-port RS-422/485 device server, 0 to 55°C operating temperature. A two-port serial device server dedicated to RS-422 and RS-485 serial lines, with a compact 0 to 55 degrees C rated housing and a 12 to 48 VDC input.
On the datasheet side, the power input is 12 to 48 VDC; operating temperature is 0 to 55°C (32 to 131°F); dimensions are 90 x 100.4 x 22 mm (3.54 x 3.95 x 0.87 in); weight is 360 g (0.79 lb).
Standards and approvals printed for this model include marine approvals (DNV); safety standard UL 60950-1. Approvals can differ between variants of a series, so check the one on the exact order code.
Technical specifications
| Parameter | Specification |
|---|---|
| 10/100BaseT(X) Ports (RJ45 connector) | 1 |
| Magnetic Isolation Protection | 1.5 kV (built-in) |
| Management | DHCP Client; IPv4; SNTP; SMTP; SNMPv1; DNS; HTTP; ARP; BOOTP; UDP; TCP/IP; Telnet; ICMP |
| Authentication | Local database (password only) |
| Connector | Terminal block |
| No. of Ports | 2 |
| Serial Standards | RS-422; RS-485 |
| Operation Modes | Disabled; Ethernet Modem; Pair Connection; Real COM; Reverse Telnet; TCP Client; TCP Server; UDP |
| Baudrate | Supports standard baudrates (unit=bps): 110, 134, 150, 300, 600, 1200, 1800, 2400, 4800, 7200, 9600, 19200, 38400, 57600, 115200, 230400 |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Even, Odd, Space, Mark |
| Flow Control | XON/XOFF |
| Pull High/Low Resistor for RS-485 | 1 kilo-ohms (fixed value) |
| RS-485 Data Direction Control | ADDC (automatic data direction control) |
| RS-422 | Tx+, Tx-, Rx+, Rx-, GND |
| RS-485-4w | Tx+, Tx-, Rx+, Rx-, GND |
| RS-485-2w | Data+, Data-, GND |
| Input Current | 280 mA @ 12 VDC |
| Input Voltage | 12 to 48 VDC |
| No. of Power Inputs | 1 |
| Power Connector | 1 removable 3-contact terminal block(s) |
| Automatic Reboot Trigger | Built-in WDT |
| Alert Tools | Built-in buzzer and RTC (real-time clock) |
| Housing | Metal |
| Dimensions (with ears) | 90 x 100.4 x 22 mm (3.54 x 3.95 x 0.87 in) |
| Dimensions (without ears) | 67 x 100.4 x 22 mm (2.64 x 3.95 x 0.87 in) |
| Weight | 360 g (0.79 lb) |
| Installation | Desktop; DIN-rail mounting (with optional kit); Wall mounting |
| Operating Temperature | 0 to 55°C (32 to 131°F) |
| Storage Temperature (package included) | -40 to 75°C (-40 to 167°F) |
| Ambient Relative Humidity | 5 to 95% (non-condensing) |
| EMC | EN 55032/35 |
| EMI | CISPR 32, FCC Part 15B Class A |
| EMS | IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV; IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m; IEC 61000-4-4 EFT: Power: 1 kV; Signal: 0.5 kV; IEC 61000-4-5 Surge: Power: 1 … |
| Safety | UL 60950-1 |
| Maritime | DNV |
| Green Product | RoHS, CRoHS, WEEE |
| Warranty Period | 5 years |
Where it fits and what to check
It networks instruments and PLCs that talk multi-drop RS-485, such as meters and drives on a motor control centre. The model list in the NPort 5200 family also carries -T and isolated (I) variants.
On the practical side, mounting is listed as desktop; din-rail mounting (with optional kit); wall mounting; the housing is metal; the stated MTBF is 309,383 hrs; the warranty period is 5 years. Treat the MTBF as a manufacturer prediction under its stated method, not a guarantee for your site.
Please check that RS-232 is not offered on this model (use the 5250A for that), and whether the isolated I or -T version is required before you place an order. Seven Star LLC supplies as an independent company and prices against the precise code requested.
Related models in the NPort 5232 family
Other order codes listed alongside it (8 entries in total): NPort 5210, NPort 5210-T, NPort 5230, NPort 5230-T, NPort 5232, NPort 5232-T, NPort 5232I, NPort 5232I-T. Suffixes such as -T generally mark wide-temperature versions and fiber suffixes (M, S, MM, SS with SC or ST) mark the connector and fiber type, but the order code printed on the datasheet governs.
Documents and quotation
The Moxa datasheet for this family (moxa-nport-5200-series-datasheet-v2.2) is attached to this page. Request a quotation with the exact order code, quantity and delivery location, and we will respond with availability.
More products in this range: Industrial Communications.
Datasheets & Documents
- Datasheet Moxa NPort 5200 series datasheet v2.2 Download
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About brand
Moxa is the Taiwanese maker of industrial networking equipment: Ethernet switches, serial device servers, protocol gateways, media converters, secure routers and remote I/O. It was founded in Taiwan in 1987 and started with serial communication products before moving into industrial Ethernet. It is headquartered in Taipei.
Seven Star LLC is an independent supplier in Muscat. We list Moxa switches, serial servers, gateways and converters, and supply them to control system integrators, utilities, oil and gas and building automation projects in Oman and the GCC by exact model.
Moxa at a glance
| Established | 1987, Taiwan |
|---|---|
| Headquarters | Taipei, Taiwan |
| First products | Serial communication boards and serial connectivity |
| Product families | Unmanaged, managed and rackmount industrial Ethernet switches, serial device servers, Modbus and fieldbus gateways, media converters, serial converters, secure routers, remote I/O and industrial computers |
Moxa products we list
| Family | Models | Typical use |
|---|---|---|
| Unmanaged switches | EDS-205A, EDS-208A, EDS-2008-EL, EDS-2010-ML, EDS-308, EDS-316, EDS-G2005-EL, EDS-G205, EDS-G308, EDS-P206A PoE | Simple plug-and-play networks inside control panels |
| Managed switches | EDS-405A, EDS-408A, EDS-508A, EDS-510A, EDS-510E, EDS-518A, EDS-528E, EDS-G508E, EDS-G509, EDS-G512E, ICS-G7528A rackmount | Redundant ring networks, VLANs and diagnostics for SCADA and DCS |
| Serial device servers | NPort 5110A, 5150A, 5210A, 5250A, 5410, 5450, 5610-8, 5650-8, 6150, IA5150A | Putting RS-232/422/485 devices on an Ethernet network |
| Protocol gateways | MGate MB3180, MB3170, MB3280, MB3270, 5101-PBM-MN, 5105-MB-EIP, 5109 DNP3, 5114 IEC 104 | Linking Modbus RTU/TCP, PROFIBUS, EtherNet/IP, DNP3 and IEC 60870-5-104 systems |
| Converters, routers and I/O | IMC-21A, IMC-101, IMC-21GA, TCF-142, TCC-100, TCC-80, TCC-120, EDR-G9010 router, ioLogik E2210 | Fibre links over long distances, serial conversion, network security and remote I/O |
The choice between switch types follows the network. An unmanaged switch simply forwards traffic and suits a small, isolated panel. A managed switch adds redundancy protocols (Moxa's Turbo Ring recovers a broken ring in milliseconds), VLANs to separate traffic, port mirroring and alarms, which a SCADA or DCS network needs. The suffix on a Moxa model also matters: "-T" means a wide operating temperature range (typically -40 to 75 °C), which is the safe choice for outdoor cabinets in the Gulf summer. "-MM-SC" or "-S-SC" means multi-mode or single-mode fibre with SC connectors.
Where Moxa products are used
In Oman and the GCC, Moxa equipment connects RTUs, PLCs, meters and protection relays in oil and gas fields, electrical substations, water and wastewater SCADA, transport, and building and energy management systems.
Ordering Moxa products: what we need
Send the complete model including all suffixes (for example EDS-508A-MM-SC-T), the quantity, and for fibre models the fibre type and distance. For gateways, tell us which two protocols need to be linked.
Facts checked against Moxa company information, October 2026.
Browse MOXA products by category: Industrial Communications.
Related products
Frequently Asked Questions
What is the Moxa NPort 5232?
Moxa lists it as: 2-port RS-422/485 device server, 0 to 55°C operating temperature. A two-port serial device server dedicated to RS-422 and RS-485 serial lines, with a compact 0 to 55 degrees C rated housing and a 12 to 48 VDC input.
What power supply does the NPort 5232 need?
The Moxa specification gives an input voltage of 12 to 48 VDC. Check the terminal arrangement and, where relevant, the redundant-input wiring against your panel supply before ordering.
What operating temperature range applies to the NPort 5232?
The listed operating temperature is 0 to 55°C (32 to 131°F). Wide-temperature versions carry a -T suffix in Moxa's order codes where the series offers them, and they are separate order codes.
Which serial interfaces does the NPort 5232 offer?
The datasheet lists RS-422; RS-485 on Terminal block, with 2 serial port(s).
Where is the NPort 5232 datasheet and how do I ask for a quotation?
You can download the Moxa datasheet from this page. For a quotation, send us the full order code, quantity and destination; Seven Star LLC is an independent supplier based in Muscat.
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