NPort S9450I Series


  • 4-port RS-232/422/485 serial interface
  • Supports up to 5 managed Ethernet switch ports (fiber available with some models)
  • DNP3 and Modbus protocols supported
  • IEC 61850-3, IEEE 1613 compliant (for power substations)
  • Ethernet redundancy with Turbo Ring/Chain and RSTP/STP supported
  • Real COM/TTY drivers for Windows and Linux
  • Supports IEC 61850 MMS protocol
  • Security features based on IEC-62443/NERC CIP
  • -40 to 85°C wide operating temperature


• General Specifications
• Port Summary
Serial Ports 4 RS-232/422/485 ports
Ethernet Switch Ports NPort S9450I all copper models: 5 RJ45 copper ports
NPort S9450I copper/fiber models: 3 RJ45 copper ports, 2 fiber ports
Magnetic Isolation Protection 1.5 kV built in
Console Ports 1 (10-pin RJ45 connector)
• Physical Characteristics
Housing Metal
Weight 2.54 kg (5.60 lb)
Dimensions 80 x 160 x 109 mm (3.15 x 6.30 x 4.29 in)
• Environmental Limits
Operating Temperature -40 to 85°C (-40 to 185°F)
Storage Temperature -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
• Power Requirements
Input Voltage WV models: 24/48 VDC (18 to 72 VDC)
HV models: 110/220 VAC/VDC (88 to 300 VDC, 85 to 264 VAC)
Input Current 520 mA @ 24 VDC
80 mA @ 110 VDC
• Standards and Certifications
Safety UL 61010 (Pending)
EMC EN 61000-6-2/61000-6-4
EMI CISPR 22, FCC Part 15B Class A
EMS IEC 61000-4-2 ESD: Contact: 8 kV; Air: 15 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m
IEC 61000-4-4 EFT: Power: 4 kV; Signal: 4 kV
IEC 61000-4-5 Surge: Power 6 kV; Signal: 4 kV
IEC 61000-4-6 CS: 150 kHz to 80 MHz: 10 V/m; Signal: 10 V/m
IEC 61000-4-8
Electrical Substation IEC 61850-3, IEEE 1613
• Warranty
Warranty Period 5 years
Details See
• Device Server Specifications
• Serial Interface
Number of Ports 4
Serial Standards RS-232/422/485
Connector DB9 male
Serial Line Protection 2 kV isolation protection
RS-485 Data Direction Control ADDC® (Automatic Data Direction Control)
Console Port Dedicated RS-232 console port (10-pin RJ45)
• Serial Communication Parameters
Data Bits 5, 6, 7, 8
Stop Bits 1, 1.5, 2
Parity None, Even, Odd, Space, Mark
Flow Control RTS/CTS and XON/XOFF
Baudrate 50 bps to 921.6 Kbps
• Serial Signals
RS-422 Tx+, Tx-, Rx+, Rx-, GND
RS-485-4w Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w Data+, Data-, GND
Digital Input 2 inputs with the same ground, but electrically isolated from the electronics• +13 to +30 V for state “1”
• -30 to +3 V for state “0”
• Max. input current: 8 mA
• Software
Configuration Options Command Line Interface (CLI) through Serial/Telnet/SSH, Web Console (HTTP/HTTPS), Windows Utility
Windows Real COM Drivers Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008/7/8/8.1/10 (x86/x64), Windows 2008 R2/2012/2012 R2 (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
Linux Real TTY Drivers Linux 2.4.x, 2.6.x, 3.x, 4.x
Android API Android 3.1.x and later
Operation Modes Real COM, TCP Server, TCP Client, UDP, RFC2217, Modbus, DNP3, DNP3 Raw Socket
Management SNMP MIB-II, IEC 61850 MMS
• Reliability
Alert Tools Built-in buzzer and RTC (real-time clock)
Automatic Reboot Trigger Built-in WDT (watchdog timer)
• MTBF (mean time between failures)
Time 347,436 hrs
Standard Telcordia (Bellcore) Standard TR/SR
• Ethernet Switch Specifications
• Ethernet Interface
Standards IEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseT(X) and 100BaseFX
IEEE 802.3x for Flow Control
IEEE 802.1D for Spanning Tree Protocol
IEEE 802.1w for Rapid STP
IEEE 802.1Q for VLAN Tagging
IEEE 802.1p for Class of Service
IEEE 802.1x for Authenti
Network Protocols ICMP, IPv4, TCP, UDP, ARP, Telnet, DNS, HTTP, SMTP, SNTP, IGMPv1/v2, GVRP, SNMPv1/v2c/v3, DHCP Server/Client, DHCP Option 82, BootP, TFTP, SNTP, SMTP, RARP, GMRP, LACP, RMON
MIB MIB-II, Ethernet-Like MIB, P-BRIDGE MIB, Q-BRIDGE MIB, Bridge MIB, RSTP MIB, RMON MIB Group 1, 2, 3, 9
Flow Control IEEE 802.3x flow control, back pressure flow control interface
• Switch Properties
Priority Queues 4
Max. Number of Available VLANs 64
VLAN ID Range VID 1 to 4094
IGMP Groups 256
Cybersecurity • Security features based on IEC 62443/NERC CIP
• Supports port access control list: MAC, 802.1x authentication
• Supports RADIUS, TACACS+
• Supports Syslog for system/event
• Optical Fiber Interface









• Switch Interface
RJ45 Ports 10/100BaseT(X) auto negotiation speed, F/H duplex mode, and auto MDI/MDI-X connection
Alarm Contact 2 relay outputs with current carrying capacity of 1A @ 24 VDC