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Brand: MOXA
Moxa NPort 6450 4-Port Secure Terminal Server
Description
How the NPort 6450 puts serial devices on Ethernet
NPort 6450 is listed by Moxa as: 4-port RS-232/422/485 to Ethernet secure serial port server. A four-port rackmount terminal server that puts RS-232, RS-422 or RS-485 devices onto Ethernet with security protocols built in: HTTPS (TLS 1.2), SNMPv3 and SSHv2 are listed for management.
Key figures from the Moxa page: the power input is 12 to 48 VDC; operating temperature is 0 to 55°C (32 to 131°F); dimensions are 181 x 103 x 35 mm (7.13 x 4.06 x 1.38 in); weight is 1020 g (2.25 lb).
Standards and approvals printed for this model include 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 |
|---|---|
| SD Slot | Up to 32 GB (SD 2.0 compatible) |
| Alarm Contact Channels | Resistive load: 1 A @ 24 VDC |
| 10/100BaseT(X) Ports (RJ45 connector) | 1; Auto MDI/MDI-X connection |
| Magnetic Isolation Protection | 1.5 kV (built-in) |
| Time Management | SNTP Client |
| Unicast Routing | RIPV1/V2; Static Route |
| Authentication | Local database; RADIUS; TACACS+ |
| Security Protocols | HTTPS (TLS 1.2); SNMPv3; SSHv2 |
| Connector | DB9 male |
| No. of Ports | 4 |
| Serial Standards | RS-232; RS-422; RS-485 |
| Baudrate | 50 bps to 921.6 kbps (supports non-standard baudrates) |
| Console Port | Serial port 1: RS-232 (19200, n, 8, 1) |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None; Even; Odd; Space; Mark |
| Flow Control | RTS/CTS; DTR/DSR; XON/XOFF |
| Pull High/Low Resistor for RS-485 | 1 kilo-ohm, 150 kilo-ohms |
| RS-485 Data Direction Control | Automatic Data Direction Control (ADDC) |
| Terminator for RS-485 | 120 ohms |
| RS-232 | TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND |
| RS-422 | Tx+, Tx-, Rx+, Rx-, GND |
| RS-485-4w | Tx+, Tx-, Rx+, Rx-, GND |
| RS-485-2w | Data+, Data-, GND |
| Input Current | 730 mA @ 12 VDC |
| Input Voltage | 12 to 48 VDC |
| Automatic Reboot Trigger | Built-in WDT |
| Alert Tools | Built-in buzzer and RTC (real-time clock) |
| Housing | Metal |
| Installation | Desktop; DIN-rail mounting (with optional kit); Wall mounting |
| Dimensions (with ears) | 181 x 103 x 35 mm (7.13 x 4.06 x 1.38 in) |
| Dimensions (without ears) | 158 x 103 x 35 mm (6.22 x 4.06 x 1.38 in) |
| Weight | 1020 g (2.25 lb) |
| 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 |
| Safety | UL 60950-1 |
| Traffic Control | NEMA TS2 |
| Vibration | IEC 60068-2-6 |
| Freefall | IEC 60068-2-34 |
| Green Product | RoHS, CRoHS, WEEE |
| Warranty Period | 5 years |
Selection and installation notes
It suits control rooms and equipment cabinets that collect serial consoles, meters and RTUs from several skids over one managed Ethernet connection, where a plain device server would expose unencrypted management. Each port is DB9 male and can be set to RS-232, RS-422 or RS-485 in software.
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 850,905 hrs; the warranty period is 5 years. Treat the MTBF as a manufacturer prediction under its stated method, not a guarantee for your site.
Before ordering, confirm the number of serial ports, whether the -T wide-temperature, fiber-uplink or G2 variants of the 6000 family are the ones you actually need, and the DC or AC supply arrangement for your rack. Seven Star LLC is an independent supplier in Muscat and quotes against the exact code you give us.
Related models in the NPort 6450 family
Moxa groups the NPort 6450 with 30 related order codes under one family: NM-FX01-M-SC, NM-FX01-M-SC-T, NM-FX01-S-SC, NM-FX01-S-SC-T, NM-FX02-M-SC, NM-FX02-M-SC-T, NM-FX02-S-SC, NM-FX02-S-SC-T, NM-TX01, NM-TX01-T, NM-TX02, NM-TX02-T, NPort 6450, NPort 6450-T, NPort 6610-16, NPort 6610-16-48V, NPort 6610-32, NPort 6610-32-48V, NPort 6610-8, NPort 6610-8-48V, NPort 6650-16, NPort 6650-16-48V, NPort 6650-16-HV-T, NPort 6650-16-T, NPort 6650-32, NPort 6650-32-48V, NPort 6650-32-HV-T, NPort 6650-8, NPort 6650-8-48V, NPort 6650-8-HV-T, NPort 6650-8-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.
Related MOXA products: Moxa NPort 6150 1-Port Secure Terminal Server, Moxa NPort IA5150A 1-Port Serial Device Server, Moxa NPort 5410 4-Port RS-232 Serial Device Server, Moxa NPort 5110A 1-Port RS-232 Serial Device Server, Moxa NPort 5210A 2-Port RS-232 Serial Device Server and Moxa NPort 5450 4-Port RS-232/422/485 Serial Device Server.
Documents and quotation
More products in this range: Industrial Communications. Download the official Moxa datasheet (moxa-nport-6400-6600-series-datasheet-v1.7) from this page and send us your order code, quantity and destination for a quotation.
Datasheets & Documents
- Datasheet Moxa NPort 6400-6600 series datasheet v1.7 Download
Reviews (0)
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.
FAQ
Questions about the Moxa NPort 6450 4-Port Secure Terminal Server
Answers from our engineering team on installation, compatibility and integration.
01What is the Moxa NPort 6450?
Moxa lists it as: 4-port RS-232/422/485 to Ethernet secure serial port server. A four-port rackmount terminal server that puts RS-232, RS-422 or RS-485 devices onto Ethernet with security protocols built in: HTTPS (TLS 1.2), SNMPv3 and SSHv2 are listed for management.
02What power supply does the NPort 6450 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.
03What operating temperature range applies to the NPort 6450?
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.
04Which serial interfaces does the NPort 6450 offer?
The datasheet lists RS-232; RS-422; RS-485 on DB9 male, with 4 serial port(s).
05Where is the NPort 6450 datasheet and how do I ask for a quotation?
The official Moxa datasheet is attached to this page. Send Seven Star LLC the exact order code, quantity and delivery location for a quotation; we are an independent supplier in Muscat.
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