NPort S8000 Series
4-port device servers with managed Ethernet switch

Features and Benefits
- 4-port RS-232/422/485 serial device server
- Serial QoS for configuring serial data transmission priority
- Built-in managed Ethernet switch
- S8455I fiber models: 2 fiber Ethernet ports and 3 Ethernet ports
- S8455I all-copper models: 5 Ethernet ports
- Ethernet redundancy with Turbo Ring and Turbo Chain (recovery time < 20 ms) or RSTP/STP (IEEE 802.1w/D) supported
- QoS, IGMP-snooping/GMRP, VLAN, LACP, SNMPv1/v2c/v3, RMON supported
- 2 kV isolation for serial signals (isolation models)
- Adjustable pull high/low resistor for RS-485 ports
- Surge protection for serial, Ethernet, and power
Certifications
- UL Listed
- CE
- FCC
- ATEX
Introduction
The NPort S8000 Series combines an industrial device server with a full-function managed Ethernet switch with 4 RS-232/422/485 serial ports, allowing you to easily install, manage, and maintain the product. Combining a device server and switch in one product allows you to save space in your cabinet, reduce overall power consumption, and reduce costs, since you will not need to purchase a switch and serial device server separately.
Models in this series (6)






| — | NPort S8455I | NPort S8455I-T | NPort S8455I-MM-SC | NPort S8455I-MM-SC-T |
| 10/100BaseT(X) Ports RJ45 Connector | 5 | 5 | 3 | 3 |
| 100BaseFX Ports Multi-Mode SC Connector | – | – | 2 | 2 |
| 100BaseFX Ports Single-Mode SC Connector | – | – | – | – |
| Operating Temp. | 0 to 60°C | -40 to 75°C | 0 to 60°C | -40 to 75°C |
| Input Voltage | 12-48 VDC | 12-48 VDC | 12-48 VDC | 12-48 VDC |
| — | Add to Quote View Bag Buy from distributors (for USA only) | Add to Quote View Bag Buy from distributors (for USA only) | Add to Quote View Bag Buy from distributors (for USA only) | Add to Quote View Bag Buy from distributors (for USA only) |
| — | NPort S8455I-SS-SC | NPort S8455I-SS-SC-T | — | — |
| 10/100BaseT(X) Ports RJ45 Connector | 3 | 3 | ||
| 100BaseFX Ports Multi-Mode SC Connector | – | – | ||
| 100BaseFX Ports Single-Mode SC Connector | 2 | 2 | ||
| Operating Temp. | 0 to 60°C | -40 to 75°C | ||
| Input Voltage | 12-48 VDC | 12-48 VDC | ||
| — | Add to Quote View Bag Buy from distributors (for USA only) | Add to Quote View Bag Buy from distributors (for USA only) |
Specifications
Shown for NPort S8455I. Per-model differences are listed in the selection grid above.
Input/Output Interface
- Alarm Contact Channels
- 2 Resistive load: 1 A @ 24 VDC
- Digital Input Channels
- 2
- Digital Inputs
- +13 to +30 V for state 1 -30 to +1 V for state 0 Max. input current: 8 mA
Ethernet Interface
- 10/100BaseT(X) Ports (RJ45 connector)
- 5
- Optical Fiber
- Read more 100BaseFX Multi-Mode Single-Mode Fiber Cable Type OM1 50/125 µm G.652 800 MHz x km Typical Distance 4 km 5 km 40 km Wavelength Typical (nm) 1300 1310 TX Range (nm) 1260 to 1360 1280 to 1340 RX Range (nm) 1100 to 1600 1100 to 1600 Optical Power TX Range (dBm) -10 to -20 0 to -5 RX Range (dBm) -3 to -32 -3 to -34 Link Budget (dB) 12 29 Dispersion Penalty (dB) 3 1 Note: When connecting a single-mode fiber transceiver, we recommend using an attenuator to prevent damage caused by excessive optical power. Note: Compute the “typical distance” of a specific fiber transceiver as follows: Link budget (dB) > dispersion penalty (dB) + total link loss (dB).
- Magnetic Isolation Protection
- 1.5 kV (built-in)
- Standards
- IEEE 802.1D-2004 for Spanning Tree Protocol IEEE 802.1p for Class of Service IEEE 802.1Q for VLAN Tagging IEEE 802.1w for Rapid Spanning Tree Protocol IEEE 802.1X for authentication IEEE 802.3 for 10BaseT IEEE 802.3ad for Port Trunk with LACP IEEE 802.3u for 100BaseT(X) and 100BaseFX IEEE 802.3x for flow control
Switch Properties
- IGMP Groups
- 256
- Max. No. of VLANs
- 64
- Priority Queues
- 4
- VLAN ID Range
- VID 1 to 4094
Ethernet Software Features
- Configuration Options
- Web Console (HTTP/HTTPS) Windows Utility Serial Console Telnet Console
- 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
- Filter
- 802.1Q GVRP IGMP v1/v2
- Windows Real COM Drivers
- Windows 11, 10, 8.1, 8, 7, Vista, XP, ME, 98 and 95 Windows Server 2022, 2019, 2016, 2012 R2, 2012, 2008 R2, 2008, 2003, 2000 and NT Windows Embedded CE 5.0 and 6.0, Windows XP Embedded
- Linux Real TTY Drivers
- Kernel versions: 6.x, 5.x, 4.x, 3.x, 2.6.x and 2.4.x
- Fixed TTY Drivers
- macOS versions: 14, 13, 12, 11 and 10.1x SCO UNIX, SCO OpenServer, UnixWare 7, QNX 4.25, QNX 6, Solaris 10, FreeBSD, AIX 5.x, HP-UX 11i, Mac OS X
- Virtual Machine
- VMWare ESXi (Windows 11 / 10) VMware Fusion (Windows on macOS 14, 13, 12, 11 and 10.1x) Parallels Desktop (Windows on macOS 14, 13, 12, 11 and 10.1x)
- Arm®-based Platform Support
- Windows 11 Linux Kernel 6.x, 5.x and 4.x macOS 14, 13, 12 and 11
- Android API
- Android 3.1.x and later
- Time Management
- SNTP
- MIB
- Bridge MIB Device Settings MIB Ethernet-like MIB MIB-II P-BRIDGE MIB Q-BRIDGE MIB RFC1213, RFC1317 RMON MIB Groups 1, 2, 3, 9 RSTP MIB
- Redundancy Protocols
- RSTP Turbo Chain Turbo Ring v1 Turbo Ring v2
- Security
- HTTPS, SSL SSH
- Authentication
- Local Account Accessibility RADIUS
Serial Interface
- Connector
- DB9 male
- No. of Ports
- 4
- Operation Modes
- Disabled Real COM mode RFC2217 mode TCP Client mode TCP Server mode UDP mode
- Baudrate
- 50 bps to 921.6 kbps
- Data Bits
- 5, 6, 7, 8
- Stop Bits
- 1, 1.5, 2
- Parity
- None, Even, Odd, Space, Mark
- Flow Control
- None RTS/CTS XON/XOFF
- Isolation
- 2 kV
- RS-485 Data Direction Control
- Automatic Data Direction Control (ADDC)
- Pull High/Low Resistor for RS-485
- 1 kilo-ohm, 150 kilo-ohms
- Terminator for RS-485
- 120 ohms
- Console Port
- RS-232 (TxD, RxD, GND), 8-pin RJ45 (19200, n, 8, 1)
- Serial Standards
- RS-232/422/485
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
DIP Switch Configuration
- Ethernet Interface
- Coupler Master Reserved Turbo Ring
Power Parameters
- No. of Power Inputs
- 2
- Power Connector
- 2 removable 6-contact terminal block(s)
- Input Current
- 935 mA @ 12 VDC
- Input Voltage
- 12 to 48 VDC
Physical Characteristics
- Housing
- Metal
- Dimensions
- 73.1 x 134 x 125 mm (2.88 x 5.27 x 4.92 in)
- Weight
- 578 g (1.27 lb)
- Installation
- DIN-rail mounting Wall mounting (with optional kit)
Environmental Limits
- Operating Temperature
- 0 to 60°C (32 to 140°F)
- Storage Temperature
- -40 to 75°C (-40 to 167°F)
- Ambient Relative Humidity
- 5 to 95% (non-condensing)
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: Power: 2 kV; 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
MTBF
- Time
- 287,354 hrs
- Standards
- Telcordia (Bellcore) Standard TR/SR
Warranty
- Warranty Period
- 5 years
- Details
- See www.moxa.com/warranty
Resources
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