NPort S8455I-SS-SC-T MOXA External Device Servers

Features and Benefits

• 4-port RS-232/422/485 serial device server: Serial QoS for configuring serial data transmission priority, 2 kV (DC) isolation protection for each serial port (S8455 only), Adjustable pull high/low resistor for RS-485 ports (S8455 only)
• Built-in managed Ethernet switch: S8455: Two fiber Ethernet ports and three Ethernet ports, S8458: Four fiber Ethernet ports and four 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
• Surge protection for serial, power, and Ethernet

Introduction

The NPort S8455/S8458 series combines an industrial device server with a full-function managed Ethernet switch by integrating a combination of fiber and Ethernet ports 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. The NPort S8455/S8458 series supports the complete array of NPort 5000 series device server functions. You can network your existing serial devices by connecting up to 4 serial devices through Ethernet ports, with only basic configuration required. In addition, data transmission between the serial and Ethernet interfaces is bi-directional. The NPort S8455/S8458 series has a built-in full-function managed Ethernet switch that supports QoS, IGMP-snooping/GMRP, VLAN, Port Trunking, SNMPv1/v2c/v3, and IEEE 802.1X, allowing you to handle virtually any kind of application. Ethernet redundancy, which is used to increase the reliability and availability of your industrial Ethernet network, is provided by Moxa’s Turbo Ring and Turbo Chain technology (recovery time < 20 ms) or RSTP/STP (IEEE 802.1w/D). Device level communication networks for industrial automation are very critical since they are used to control and monitor device processes. The reliability of these communications depends on ring redundancy at the device level. which is designed to provide fast network fault detection and reconfiguration in order to support the most demanding control applications. The NPort S8455/S8458 series integrates a full function NPort device server with an industrial switch to carry serial and Ethernet devices at the same time. In addition, the NPort S8455/S8458 can also achieve ring redundancy with standard STP/RSTP and Moxa’s proprietary Turbo Ring or Turbo Chain 2 redundancy protocols. This all-in-one design can be used to optimize and simplify your device network, and enhance reliability.

General Specifications

Port Summary

Serial Ports: 4 RS-232/422/485 ports
Ethernet Switch Ports: NPort S8455I: 3 RJ45 copper ports and 2 fiber ports
NPort S8458: 4 RJ45 copper ports and 4 fiber ports
Console Ports: 1 (8-pin RJ45 connector)

Physical Characteristics

Housing: Metal
Weight:
     NPort S8455I: 592 g
     NPort S8458: 1174 g
Dimensions:
     NPort S8455I: 73.1 x 134 x 125 mm (2.88 x 5.27 x 4.92 in)
     NPort S8458: 93 x 144 x 125 mm (3.66 x 5.64 x 4.92 in)

Environmental Limits

Operating Temperature:
     Standard Models: 0 to 60°C (32 to 140°F)
    
     Wide Temp. Models:
          NPort S8455I-T: -40 to 75° C (-40 to 167° F)
          NPort S8458-T: -40 to 85° C (-40 to 185° F)

     Storage Temperature: -40 to 75°C (-40 to 167°F)
Ambient Relative Humidity: 5 to 95% (non-condensing)
Altitude: Up to 2000 m

Power Requirements

Input Voltage: 12 to 48 VDC
Power Consumption:
     NPort S8455I: 935 mA @ 12 V, 470 mA @ 24 V
     NPort S8458: 940 mA @ 12 V, 470 mA @ 24 V

Standards and Certifications

Safety: UL 508, UL 60950-1, EN 60950-1
EMC: CE, FCC
EMI: EN 55022 Class A, FCC Part 15 Subpart B Class A
EMS: 
     EN 55024,
     IEC 61000-4-2 (ESD) Level 4,
     IEC 61000-4-4 (EFT) Level 4,
     IEC 61000-4-5 (Surge):
          Level 1 for serial ports,
          Level 2 for LAN ports,
          Level 3 for power lines

Warranty

Warranty Period: 5 years

Device Server Specifications

Serial Interface

Number of Ports: 4
Serial Standards: RS-232/422/485
Connector: DB9 male
Serial Line Protection:
     15 kV ESD protection for all signals
     2 kV isolation protection (NPort S8455 only)
RS-485 Data Direction Control: ADDC® (automatic data direction control)
Pull High/Low Resistor for RS-485: 1 KΩ, 150 KΩ
Terminator for RS-485: 120 Ω
Console Port: Dedicated RS-232 console port (8-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-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

Software

Configuration Options: Web Console, Telnet Console, Serial Console, Windows Search Utility
Windows Real COM Drivers: Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008/7/8/8.1 (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
Operation Modes: Real COM, TCP Server, TCP Client, UDP, RFC2217
Management: SNMP MIB-II

Reliability

Alert Tools: Built-in buzzer and RTC (real-time clock)
Automatic Reboot Trigger: Built-in WDT (watchdog timer)
MTBF (mean time between failures):
     NPort S8455I: 200,951 hrs
     NPort S8458: 163,624 hrs

Ethernet Switch Specifications

Ethernet Interface

Standards:
     IEEE 802.3 for 10BaseT
     IEEE 802.3u for 100BaseT(X) and 100Base FX
     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 Authen
Network Protocols: ICMP, IPv4, TCP, UDP, ARP, Telnet, DNS, HTTP, SMTP, SNTP, IGMPv1/v2 device, 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

Optical Fiber Interface

Table:
     100BaseFX:
          Multi-mode:
               Wavelength: 1300 nm
               Max. TX: -14 dBm
               Min. TX: -20 dBm
               RX Sensitivity: -32 dBm
               Link Budget: 12 dB

               Typical Distance:
                    5 km
                    4 km

               Saturation: -6 dBm

          Single-mode:
               Wavelength: 1310 nm
               Max. TX: 0 dBm
               Min. TX: -5 dBm
               RX Sensitivity: -34 dBm
               Link Budget: 29 dB
               Typical Distance: 40 km
               Saturation: -3 dBm

Switch Interface

RJ45 Ports: 10/100BaseT(X) auto negotiation speed, F/H duplex mode, and auto MDI/MDI-X connection
DIP Switches: Turbo Ring, Master, Coupler, Reserve
Alarm Contact: 2 relay outputs with current carrying capacity of 1A @ 24 VDC