Moxa
NPort 5250AI-M12-CT

NPort 5250AI-M12-CT

NPort 5000AI-M12 Series

Railway 1, 2, and 4-port RS-232/422/485 serial device servers

  • Speedy 3-step web-based configuration
  • COM port grouping and UDP multicast applications
  • Real COM and TTY drivers for Windows, Linux, and macOS
  • Standard TCP/IP interface and versatile TCP and UDP operation modes
  • Complies with EN 50121-4
  • Complies with all EN 50155 mandatory test items
  • M12 connector and IP40 metal housing
  • 2 kV isolation for serial signals

Certifications UL Listed · CE · FCC

Get a QuoteContact Sales

Ships from and sold by A5 IT, an authorized Moxa reseller.

Specifications

Ethernet Interface

10/100BaseT(X) Ports (M12 D-coded 4-pin female connector)
1

Ethernet Software Features

Configuration Options
Web Console (HTTP/HTTPS), Windows Utility, Device Search Utility (DSU), MCC Tool, Telnet Console
Management
ARP, BOOTP, DHCP Client, DNS, HTTP, HTTPS, ICMP, IPv4, LLDP, SMTP, SNMPv1/v2c, TCP/IP, Telnet, UDP
Filter
IGMP v1/v2
Windows Real COM Drivers
Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008/7/8/8.1/10/11 (x86/x64), Windows 2008 R2/2012/2012 R2/2016/2019 (x64), Windows Server 2022, Windows Embedded CE 5.0/6.0, Windows XP Embedded
Linux Real TTY Drivers
Kernel versions: 2.4.x, 2.6.x, 3.x, 4.x, and 5.x
Fixed TTY Drivers
SCO UNIX, SCO OpenServer, UnixWare 7, QNX 4.25, QNX 6, Solaris 10, FreeBSD, AIX 5.x, HP-UX 11i, Mac OS X, macOS 10.12, macOS 10.13, macOS 10.14, macOS 10.15
Android API
Android 3.1.x and later

Security Functions

Authentication
Local database
Encryption
HTTPS, AES-128, RSA-1024, SHA-1, SHA-256
Security Protocols
SNMPv3 HTTPS (TLS 1.2)

Serial Interface

Connector
DB9 male
No. of Ports
2
Serial Standards
RS-232, RS-422, RS-485
Baudrate
Supports standard baudrates (unit=bps): 50, 75, 110, 134, 150, 300, 600, 1200, 1800, 2400, 4800, 7200, 9600, 19200, 38400, 57600, 115200, 230.4k, 460.8k, 921.6k
Data Bits
5, 6, 7, 8
Stop Bits
1, 1.5, 2
Parity
None, Even, Odd, Space, Mark
Flow Control
RTS/CTS (RS-232 only), DTR/DSR (RS-232 only), XON/XOFF
RS-485 Data Direction Control
ADDC (automatic data direction control)
Isolation
2 kV

Serial Signals

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

Power Parameters

Input Current
360 mA @ 12 VDC
Input Voltage
12 to 48 VDC
Note
Compliant with EN 50155 on 24/48 VDC
Power Connector
M12 A-coded 5-pin male connector

Reliability

Automatic Reboot Trigger
Built-in WDT
Alert Tools
Built-in buzzer and RTC (real-time clock)

Physical Characteristics

Dimensions
80 x 216.6 x 52.9 mm (3.15 x 8.53 x 2.08 in)
Weight
686 g (1.51 lb)
Protection
PCB conformal coating

Environmental Limits

Operating Temperature
-25 to 55°C (-13 to 131°F)
Storage Temperature (package included)
-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity
5 to 95% (non-condensing)

Standards and Certifications

EMC
EN 55032/35
EMI
CISPR 32, FCC Part 15B Class A
EMS
IEC 61000-4-2 ESD: Contact: 6 kV; Air: 8 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m IEC 61000-4-4 EFT: Power: 2 kV; Signal: 2 kV IEC 61000-4-5 Surge: Power: 0.5 kV; Signal: 2 kV IEC 61000-4-6 CS: 150 kHz to 80 MHz: 10 V/m; Signal: 10 V/m IEC 61000-4-8 PFMF
Railway
EN 50121-4
Safety
UL 60950-1
Vibration
IEC 60068-2-6

Declaration

Green Product
RoHS, CRoHS, WEEE

MTBF

Time
639,622 hrs
Standards
Telcordia (Bellcore) Standard TR/SR

Warranty

Warranty Period
5 years
Details
See www.moxa.com/warranty

Documentation

NameTypeVersionDate
Software Package for MXview One Series (Linux version)552.6 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
Software Package for MXview One Series (Windows version)249.1 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
Moxa CLI Configuration Tool (Windows)2.1 MBUtilityv1.6Feb 02, 2026 Feb 02, 2026 Release notes
Moxa CLI Configuration Tool (Linux)11.3 MBUtilityv1.6Feb 02, 2026 Feb 02, 2026 Release notes
Real TTY Linux Kernel 6.x Driver2.5 MBDriverv6.2Jan 22, 2026 Jan 22, 2026 Release notes
Real TTY Linux Kernel 5.x Driver650.0 KBDriverv5.6Jan 22, 2026 Jan 22, 2026 Release notes
Real TTY Linux Kernel 4.x Driver650.0 KBDriverv4.4Jan 22, 2026 Jan 22, 2026 Release notes
Moxa Windows Driver Manager (Windows 11 and Server 2022 and later, WHQL certified)11.9 MBDriverv4.5Jan 09, 2026 Jan 09, 2026 Release notes
Moxa Windows Driver Manager (Windows 7 to 10 and Windows Server 2008 R2 to 2019, WHQL certified)12.2 MBDriverv3.8Jan 09, 2026 Jan 09, 2026 Release notes
PComm Lite - Serial Communication Tool5.3 MBUtilityv1.9Dec 12, 2025 Dec 12, 2025 Release notes
Device Search Utility (portable)128.6 MBUtilityv3.1Nov 17, 2025 Nov 17, 2025 Release notes
Device Search Utility (installer)236.2 MBUtilityv3.1Nov 17, 2025 Nov 17, 2025 Release notes
MXconfig Plugin1.8 MBSoftware Packagev1.8Oct 02, 2025 Oct 02, 2025 Release notes
MXview One plugin (Linux)21.7 MBSoftware Packagev1.8Oct 01, 2025 Oct 01, 2025 Release notes
MXview One plugin (Windows)22.6 MBSoftware Packagev1.8Oct 01, 2025 Oct 01, 2025 Release notes
Moxa CLI Configuration Tool (Windows)2.0 MBUtilityv1.5Jul 30, 2025 Jul 30, 2025 Release notes
Real TTY Linux Kernel 5.x Driver122.5 KBDriverv5.5Mar 12, 2025 Mar 12, 2025 Release notes
Firmware for NPort 5250AI-M12 Models858.7 KBFirmwarev2.0Nov 13, 2024 Nov 13, 2024 Release notes
Firmware for NPort 5000AI-M12 Series856.0 KBFirmwarev2.0Nov 13, 2024 Nov 13, 2024 Release notes
Firmware for NPort 5450AI-M12 Models862.1 KBFirmwarev2.0Nov 13, 2024 Nov 13, 2024 Release notes
MXconfig plugin (non-Java version)1.8 MBSoftware Packagev1.6Nov 11, 2024 Nov 11, 2024 Release notes
MXconfig Plugin3.6 MBSoftware Packagev1.7Nov 11, 2024 Nov 11, 2024 Release notes
MXview Plugin41.7 MBSoftware Packagev1.6Oct 04, 2024 Oct 04, 2024 Release notes
Real TTY Linux Kernel 6.x Driver121.7 KBDriverv6.1Sep 05, 2024 Sep 05, 2024 Release notes
Serial Device Server Driver for macOS (macOS 11.x to 14)6.3 MBDriverv1.3Sep 02, 2024 Sep 02, 2024 Release notes
Real TTY Linux Kernel 4.x Driver123.3 KBDriverv4.3Aug 07, 2024 Aug 07, 2024 Release notes
Real TTY drivers for Linux 3.x.x94.6 KBDriverv3.0Jul 04, 2024 Jul 04, 2024 Release notes
MXview Plugin40.8 MBSoftware Packagev1.5Jun 12, 2024 Jun 12, 2024 Release notes
Serial Device Server Driver for macOS (macOS 10.1x to 14)689.8 KBDriverv1.2Nov 10, 2023 Nov 10, 2023 Release notes
Device Search Utility2.2 MBUtilityv2.7Jun 28, 2023 Jun 28, 2023 Release notes
NPort Administrator Suite v3.2 (Windows 7 to 8.1 and Windows Server 2008 R2 to 2012 R2, WHQL certified)4.1 MBDriverv3.2Jan 17, 2023 Jan 17, 2023 Release notes
NPort Administrator Suite (Windows 10 and Server 2019 and later, WHQL certified)7.7 MBDriverv4.0Jan 17, 2023 Jan 17, 2023 Release notes
Device Server Android API18.0 MBLibraryv1.1Dec 22, 2022 Dec 22, 2022 Release notes
Serial Device Server Driver for macOS (macOS 10.12 to 10.15)611.6 KBDriverv1.1Sep 26, 2022 Sep 26, 2022 Release notes
Firmware for NPort 5000AI-M12 Series (NPort 5250AI-M12)856.4 KBFirmwarev1.5Oct 15, 2020 Oct 15, 2020 Release notes
Firmware for NPort 5000AI-M12 Series (NPort 5450AI-M12)859.7 KBFirmwarev1.5Oct 15, 2020 Oct 15, 2020 Release notes
Firmware for NPort 5000AI-M12 Series (NPort 5150AI-M12)853.7 KBFirmwarev1.5Oct 15, 2020 Oct 15, 2020 Release notes
Real TTY drivers for Linux 2.x.x92.2 KBDriverv2.0Oct 24, 2019 Oct 24, 2019 Release notes
Windows Driver Manager (Windows Vista, Server 2008, and prior)2.6 MBDriverv2.0Aug 01, 2019 Aug 01, 2019 Release notes
NPort Administration Suite4.0 MBDriverv1.22Oct 27, 2016 Oct 27, 2016 Release notes
Driver for NPort 5000AI-M12 Series (WinCE 5)230.5 KBDriverv1.6Nov 14, 2012 Nov 14, 2012 Release notes
Driver for NPort 5000AI-M12 Series (WinXP Embedded)1.2 MBDriverv1.14Apr 04, 2012 Apr 04, 2012 Release notes
Driver for NPort 5000AI-M12 Series (UNIX)73.0 KBDriverv3.5Mar 19, 2012 Mar 19, 2012 Release notes
Moxa CLI Configuration Tool User Manual850.9 KBManualv2.5Feb 12, 2026
QIG for NPort 5000AI-M12 Series1.6 MBQIGv4.1Dec 31, 2025
Declaration of Conformity (EU/UK) for NPort 5000AI-M12 Series303.7 KBDeclarationv1.0Dec 05, 2025
Tech Note: The Security Hardening Guide for NPort 5000 Series1.4 MBTech Notev2.4Dec 03, 2025
Device Search Utility v3.x User Manual2.8 MBManualv1.1Nov 17, 2025
Manual for NPort 5000 Series21.5 MBManualv7.6Aug 26, 2025
FOSS Statement for Moxa PComm Lite Suite for Windows108.5 KBDeclarationv1.0Feb 07, 2025
FOSS Statement for Moxa CLI Configuration Tool114.6 KBDeclarationv1.0Dec 10, 2024
FOSS Statement for NPort macOS driver108.4 KBDeclarationv1.0Oct 29, 2024
FOSS Statement for Device Search Utility161.8 KBDeclarationv1.0Jun 24, 2024
Tech Note: Configuring and Monitoring with MXview One/MXview and MXconfig (non-java and java) Plugins2.1 MBTech Notev1.0May 07, 2024
Tech Note: Moxa Real TTY Driver Porting Guide for Arm-based Platforms372.3 KBTech Notev2.0Jun 08, 2023
Tech Note: UDP Mode for NPort397.2 KBTech Notev2.0Jun 08, 2023
Tech Note: Real TTY Driver for NPort379.2 KBTech Notev2.0Jun 08, 2023
Tech Note: Fixed TTY Driver for NPort389.7 KBTech Notev2.0Jun 08, 2023
Tech Note: Real COM mode for NPort479.5 KBTech Notev2.0Jun 08, 2023
Tech Note: TCP Client Mode for NPort394.5 KBTech Notev2.0Jun 08, 2023
Tech Note: Pair Connection Mode544.0 KBTech Notev2.0Jun 08, 2023
Tech Note: Reverse Telnet Mode for NPort364.5 KBTech Notev2.0Jun 08, 2023
Tech Note: Accessing Multiple NPorts Behind NAT497.2 KBTech Notev2.0Jun 08, 2023
Tech Note: TCP Server Mode for NPort395.0 KBTech Notev2.0Jun 08, 2023
Tech Note: Ethernet Modem Mode429.4 KBTech Notev2.0Jun 08, 2023
EULA for NPort Administrator Suite100.3 KBTech Notev1.0May 18, 2023
FOSS Statement for NPort 5000 Series230.0 KBDeclarationv1.0Feb 24, 2023
Manual for NPort 5000 Series18.7 MBManualv6.8Sep 05, 2022
Datasheet for NPort 5000AI-M12 Series756.3 KBDatasheetv1.6Aug 08, 2022
FOSS Statement for NPort Administration Suite237.3 KBDeclarationv1.0Aug 01, 2022
FOSS Statement for Moxa Windows Driver Manager255.8 KBDeclarationv1.0Aug 01, 2022
FOSS Statement for Moxa Linux Driver1.7 MBDeclarationv1.0May 01, 2022
Tech Note: Moxa Real TTY Driver Porting Guide for Arm-based Platforms372.3 KBTech Notev1.0Aug 05, 2021
QIG for NPort 5000AI-M12 Series1.3 MBQIGv3.2Apr 28, 2021
Tech Note: Real COM mode for NPort423.5 KBTech Notev1.1Apr 30, 2020
Tech Note: NPort Real COM Mode for DNP3 Applications1.9 MBTech Notev1.0Nov 17, 2014
Tech Note: TCP Server Mode for NPort311.3 KBTech Notev1.0Jun 29, 2013
2D CAD for NPort 5150AI-M12300.0 KB2D CAD—Mar 20, 2012
2D CAD for NPort 5450AI-M12322.9 KB2D CAD—Mar 20, 2012
2D CAD for NPort 5250AI-M12305.7 KB2D CAD—Mar 20, 2012
Tech Note: UDP Mode for NPort173.2 KBTech Notev1.0Nov 03, 2009
Tech Note: Reverse Telnet Mode for NPort204.6 KBTech Notev1.0Nov 03, 2009
Tech Note: TCP Client Mode for NPort224.4 KBTech Notev1.0Nov 03, 2009
Tech Note: Accessing Multiple NPorts Behind NAT482.6 KBTech Notev1.0Nov 03, 2009
Tech Note: Real COM Mode for NPort253.0 KBTech Notev1.0Nov 03, 2009
Tech Note: NPort's Ethernet Modem Mode116.6 KBTech Notev1.0Nov 03, 2009
Tech Note: NPort's Pair Connection Mode211.4 KBTech Notev1.0Nov 03, 2009
Tech Note: Fixed TTY Driver for NPort207.6 KBTech Notev1.0May 21, 2009
Tech Note: Real TTY Driver for NPort204.2 KBTech Notev1.0May 21, 2009

Other models in the NPort 5000AI-M12 Series

NPort 5150AI-M12
NPort 5150AI-M12
NPort 5150AI-M12-CT
NPort 5150AI-M12-CT
NPort 5150AI-M12-CT-T
NPort 5150AI-M12-CT-T
NPort 5150AI-M12-T
NPort 5150AI-M12-T
NPort 5250AI-M12
NPort 5250AI-M12
NPort 5250AI-M12-CT-T
NPort 5250AI-M12-CT-T
NPort 5250AI-M12-T
NPort 5250AI-M12-T
NPort 5450AI-M12
NPort 5450AI-M12
NPort 5450AI-M12-CT
NPort 5450AI-M12-CT
NPort 5450AI-M12-CT-T
NPort 5450AI-M12-CT-T
NPort 5450AI-M12-T
NPort 5450AI-M12-T