MOXA NPort S8455I-T Serial To Ethernet Device Server
- Model: NPort S8455I-T
MOXA NPort S8455I-T INTRODUCTION
The Moxa NPort S8455I-T is a powerful industrial
serial-to-Ethernet device server that brings together the features of a managed
Ethernet switch and a reliable serial-to-Ethernet device server into one unit.
It is designed specifically for demanding industries such as Oil & Gas and
Factory Automation, which rely on seamless communication between legacy serial
devices and modern Ethernet networks. By bringing together the communication
capabilities of these two technologies, this device server helps reduce the
number of standalone components and the amount of space, power, and
installation costs required in these demanding environments. The NPort S8455I-T
features 4 RS-232/422/485 serial ports, enabling configuration and management
of network infrastructure to happen seamlessly. The converter supports Serial
QoS for priority-based data transfer, which improves performance in
mission-critical industrial applications. The Moxa NPort S8455I-T serial to Ethernet converter also supports powering redundancy with dual power inputs
(12–48 VDC) through removable 6-contact terminal blocks to ensure constant
operation in industrial environments.
High-Performance Serial and Ethernet Connectivity
The NPort S8455I-T delivers powerful networking capabilities
with five 10/100BaseT(X) Ethernet ports (RJ45 connectors), each equipped with
1.5 kV magnetic isolation protection to safeguard communication against
interference. In addition to Ethernet connectivity, it provides four DB9 male
connectors supporting RS-232/422/485 serial communication with 2 kV isolation
for secure and noise-resistant data transmission. This dual functionality makes
the device highly effective for industrial automation, SCADA systems, and
remote monitoring. The Moxa NPort S8455I-T ensures smooth integration between
serial devices and Ethernet infrastructure, supporting both legacy systems and
modern industrial networking projects. Its reliable and flexible design makes
it a key component for industries looking to enhance their communication
systems with minimal downtime and maximum performance.
Durable and Space-Saving Industrial Design
The Moxa NPort S8455I-T serial device server is built with
an industrial-grade metal housing for durability and offers installation
flexibility with both DIN-rail and wall mounting options. With compact
dimensions of 73.1 x 134 x 125 mm and a weight of 578 g, this
Ethernet-to-serial converter is ideal for applications where space efficiency
is a priority. Designed to withstand harsh operating environments, it supports
a wide operating temperature range from -40 to 75°C and is also suitable for
storage under the same extreme temperature conditions. This rugged design
ensures long-term reliability even in challenging industrial climates. As part
of Moxa’s NPort series of communication solutions, the S8455I-T delivers
outstanding durability, scalability, and seamless integration. For complete
details, engineers and developers can refer to the official Moxa NPort S8455I-T datasheet.
As an Authorized Distributor of MOXA, Manufacturers Automation Inc. (ManuAuto) offers a wide variety of Industrial Automation and Communication products across North America, including Canada (Ontario, Toronto) and the US. Buy MOXA NPort S8455I-T Serial to Ethernet Device Server online at a competitive price, with on-time delivery and fast shipping services. Our certified engineers are always available to support you.
You can also find the NPort S8455I, NPort S8455I-MM-SC, and NPort S8455I-MM-SC-T models in the MOXA NPort S8000 Series.
MOXA NPort S8455I-T CERTIFICATIONS
The NPort S8455I-T serial-to-Ethernet device server complies
with strict industrial standards, ensuring safe and dependable operation in
harsh environments. It is certified for EMC, EMI, and EMS compliance, which
makes it resilient against electromagnetic disturbances. The device is also
certified for shock and vibration resistance, ensuring durability in mobile or
high-vibration applications. Additionally, the Moxa NPort S8455I-T holds
Hazardous Locations Class I Division 2 certification, making it suitable for
deployment in oil and gas facilities, chemical plants, and other hazardous
industrial environments. These certifications, combined with its
industrial-grade design, confirm the NPort S8455I-T as a reliable and versatile
Ethernet-to-serial converter. This Moxa device is a proven solution for
achieving uninterrupted, secure, and efficient industrial edge connectivity.

| Serial-to-Ethernet : Interface | |
| 10/100Mb RJ45 (Megabit) Ports | Yes : 5 Ports |
| 100BaseFX Ports | No |
| Digital Input Channels | Yes : 2 x Channels (+13 to +30 V for state 1, -30 to +1 V for state 0, Max. input current: 8 mA) |
| Digital Output Channels | No |
| Alarm Contact Channels | Yes : 2 x Channels (Resistive load: 1 A @ 24 VDC) |
| Protocols | RSTP, Turbo Chain, Turbo Ring v1, Turbo Ring v2 |
| Serial-to-Ethernet : Serial Interface | |
| Number of Ports | 4 Ports |
| Serial Standards | RS-232/422/485 |
| Connector | DB9 male |
| Console Port | Yes : RS-232 (TxD, RxD, GND), 8-pin RJ45 (19200, n, 8, 1) |
| Serial-to-Ethernet : Serial Communication Parameters | |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | Even, Odd, Space, Mark, None |
| Flow Control | Even, Odd, Space, Mark, None |
| Baudrate | 50 bps to 921.6 Kbps |
| Isolation | Yes : 2 KV |
| Serial-to-Ethernet : 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 |
| Serial-to-Ethernet : Communication details | |
| Wireless Standards | No |
| Maximum data transfer speed | No |
| Maximum direct range | No |
| Serial-to-Ethernet : Power Requirements | |
| Connection | 2 removable 6-contact terminal block(s) |
| Input Voltage | 12 to 48 VDC |
| Input Current | 935 mA @ 12 VDC |
| Serial-to-Ethernet : General | |
| Management | BOOTP, Device Search Utility (DSU), DHCP Client, DHCP Option 82, HTTP, IPv4, LLDP, Port Mirror, RMON, SMTP, SNMPv1/v2c/v3, Syslog, TCP/IP, Telnet, Web Console |
| MTBF | 287,354 hrs |
| Compatible operating systems | Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008/7/8/8.1/10 (x86/x64), Windows 2008 R2/2012/2012 R2/2016/2019 (x64), Windows Embedded CE 5.0/6.0, Windows XP Embedded |
| 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 |
| Linux Real TTY Drivers | Kernel versions: 2.4.x, 2.6.x, 3.x, 4.x, and 5.x |
| Automatic Reboot Trigger | Built-in WDT (watchdog timer) |
| Serial-to-Ethernet : Security | |
| Authentication | Local Account Accessibility, RADIUS |
| Security | HTTPS, SSL, SSH |
| Encryption | No |
| Serial-to-Ethernet : Features and capabilities | |
| Display | No |
| Serial-to-Ethernet : Physical Characteristics | |
| Dimensions | 73.1 x 134 x 125 mm (2.88 x 5.27 x 4.92 in) |
| Standards and Certifications | EMC: EN 55032/24; 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: Signal: 1 kV, IEC 61000-4-5 Surge: Power: 1 kV; Signal: 0.25 kV, IEC 61000-4-6 CS: 150 kHz to 80 MHz: 10 V/m; Signal: 10 V/m, IEC 61000-4-8 PFMF; Environmental Testing: IEC 60068-2-1, IEC 60068-2-3; Hazardous Locations: Class I Division 2; Safety: EN 60950-1, IEC 60950-1, UL 508, UL 60950-1; Shock: IEC 60068-2-27; Vibration: IEC 60068-2-6; Telcordia (Bellcore) Standard TR/SR |
| Installation | DIN-rail mounting, Wall mounting (with optional kit) |
| Housing | Metal |
| Operating Temperature | -40 to 75°C (-40 to 167°F) |
| Storage Temperature | -40 to 75°C (-40 to 167°F) |
| Operation Humidity | 5 to 95% (non-condensing) |
| Weight | 578 g (1.27 lb) |