RuggedCom Switch RS920W User Guide

RuggedWireless RS920W

Wireless Serial Device Server with Ethernet over VDSL Interface

Features and Benefits

Interface Ports

ꢀ.1 Ethernet over VDSL (EoVDSL) interface

ꢀ.2 RS485/RS422/RS232 Serial Ports (DB9 of RJ45)

ꢀ.Serial Fiber Interface (ST) available

Ethernet Over VDSL Port Characteristics

ꢀ Up to 4km LAN segments

ꢀ Symmetric data rates up to 50 Mbps

ꢀ Automatically selects fastest data rate based on distance and

quality of cable

ꢀ Software selectable to be master or slave

ꢀ Frequency Division Multiplexing (FDM)

Cyber Security

ꢀ WPA (Wi-Fi Protected Access) with TKIP for enhanced

security and encryption

ꢀ WPA2/802.11i with CCMP for robust security and encryption

ꢀ IEEE 802.1X/RADIUS using EAP-PEAP for secure

"enterprise class" authentication configuration

ꢀ Pre-shared Key Mode (PSK) for "personal" mode

authentication configuration

The RuggedWireless™ RS920W is an industrially hardened

Wireless Serial Device Server that has been specifically designed

to operate reliably in electrically harsh and climatically demanding

environments. The RS920W features a wireless LAN (WLAN)

interface combined with 2 serial ports and one Ethernet over

VDSL (EoVDSL) interface. The RS920W allows you to connect

RS-232/422/485 serial devices at up to 230 kbps and for wireless

access and control via an IEEE 802.11i wireless LAN. The

RS920W can also act as a wireless access point and in

combination with the EoVDSL interface, can aggregate many

devices at a remote location back to the central control room

using existing telephone grade cable (or other legacy serial

cabling) at distances of up to 4km.

ꢀ Multi-level user passwords

ꢀ SSH/SSL encryption

ꢀ Enable/disable ports, MAC based port security

ꢀ Port based network access control (802.1x)

ꢀ VLAN (802.1q ) to segregate and secure network traffic

ꢀ Radius centralized password management

ꢀ SNMPv3 encrypted authentication and access security

Rugged Operating System (ROS ) Features

ꢀ Simple plug and play operation - automatic learning,

negotiation, and crossover detection

ꢀ RSTP (802.1D-2004) and Enhanced Rapid Spanning

Tree (eRSTP™) network fault recovery (<5ms)

ꢀ Quality of Service (802.1p) for real-time traffic

ꢀ VLAN (802.1q) with double tagging and GVRP support

ꢀ Link aggregation (802.3ad)

The RS920W functions as a wireless "client/bridge" within an

IEEE 802.11b/g compliant WLAN. This allows the RS920W to

transfer data for connected serial port and Ethernet devices via

an installed Wireless Access Point. The RS920W is capable of

wireless data rates of up to 54Mbps whose bandwidth is available

for the combined device traffic volume emanating from two serial

ports and two Ethernet ports. Static authentication support is

provided by WPA-PSK. For authentication by an access point

and a RADIUS server, the RS920W supports IEEE 802.1X/

RADIUS for wireless user traffic and distributing dynamic

encryption keys. All wireless communications are protected by

"hardware accelerated encryption" to ensure high performance

when using strong encryption and authentication protocols such

as WPA/TKIP and WPA2/802.11i. The web management

interface is protected using SSL.

ꢀ IGMP Snooping for multicast filtering

ꢀ Port Rate Limiting and Broadcast Storm Limiting

ꢀ Port configuration, status, statistics, mirroring, security

ꢀ Loss of link management on fiber ports

ꢀ SNTP time synchronization (client and server)

RuggedRated™ for Reliability in Harsh Environments

ꢀ.Immunity to EMI and heavy electrical surges

ꢁ Meets IEEE 1613 (electric utility substations)

ꢁ Exceeds IEC 61850-3 (electric utility substations)

ꢁ Exceeds IEC 61800-3 (variable speed drive systems)

ꢁ Exceeds IEC 61000-6-2 (generic industrial)

ꢁ Exceeds NEMA TS-2 (traffic control equipment)

ꢀ.-40°C to +85°C operating temperature

ꢀ.no fans or moving parts for improved reliability

ꢀ.20 AWG galvanized steel enclosure

ꢀ.DIN or panel mounting options provide secure

mechanical reliability

The RS920W has an operating temperature range of -40 to +85°C

without the use of internal cooling fans allowing it to be placed in

almost any location. The RS920W also has an integrated power

supply with a wide range of voltages for worldwide operability, and

is compliant with EMI and environmental standards for utility

substations, industrial manufacturing, process control and

intelligent transportation systems applications.

Universal Power Supply

ꢀ.Fully integrated power supplies (no external adaptors)

ꢀ.Popular low-voltage DC ranges: 24VDC, 48VDC

ꢀ.Universal high-voltage range: 88-300VDC

or 85-264VAC

S^RUGGEDCOM

9001:2000

9001:2 00

The RS920W is backed by a five year warranty and

unsurpassed technical support.

ꢀ.CSA/UL 60950 safety approved to +85°C

CERTIFIED

ꢀ.Screw down terminal blocks ensure

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Wireless Serial Device Server with Ethernet over VDSL Interface

ROS Features

Serial IP Encapsulation

Many 'legacy' devices (RTU, PLC, IED, etc.) only support

serial communications via RS232, RS422 or RS485. ROS™

that are 'pruned' to prevent loops. eRSTP yields worst-case

fault recovery1 of 5ms times the 'bridge diameter' and allows

rings of up to 80 switches. For example, a ring of ten switches

encapsulates the serial data within a TCP connection allowing will have fault recovery times under 50ms. eRSTP implements

these devices to be reached via an IP network. A wide range

of baud rates, frame packetization options, and diagnostics

allows any serial protocol to function. The RS416 has specific

support for the following serial protocols:

ꢀ Raw Socket serial encapsulation

ꢀ Modbus TCP (client and server)

ꢀ DNP 3

both STP and RSTP to ensure interoperability with commercial

switches unlike other proprietary 'ring' solutions.

Quality of Service (IEEE 802.1p)

Some networking applications such as real-time control

or VoIP (voice over IP) require predictable arrival times for

Ethernet frames. Switches can introduce latency in times

of heavy network traffic due to the internal queues that buffer

frames and then transmit on a first come first serve basis.

ROS™ supports 'Class of Service' in accordance with IEEE

802.1p that allows time critical traffic to jump ahead to the

front of the queue thus minimizing latency and reducing jitter

to allow such demanding applications to operate correctly.

ROS™ allows priority classification by port, tags, MAC

address, and IP type of service (TOS).

ꢀ WIN and TIN

ꢀ Microlok

MODBUS TCP

The Modbus protocol is ubiquitous in the industrial control

and automation world. ROS converts Modbus RTU

master/slave serial data packets to Modbus TCP client/server

packets for transmission over an IP network. This allows

communications to Modbus RTU slaves via Ethernet and

allows multiple masters to poll the same slave device.

A configurable "weighted fair queuing" algorithm controls how

frames are emptied from the queues.

Cyber Security

Cyber security is an urgent issue in many industries where

advanced automation and communications networks play

a crucial role in mission critical applications and where high

reliability is of paramount importance. Key ROS™ features that

address security issues at the local area network level include:

VLAN (IEEE 802.1q)

Virtual local area networks (VLAN) allow the segregation

of a physical network into separate logical networks with

independent broadcast domains. A measure of security is

provided since hosts can only access other hosts on the

same VLAN and traffic storms are isolated. ROS™ supports

802.1q tagged Ethernet frames and VLAN trunks. Port

based classification allows legacy devices to be assigned

to the correct VLAN. GVRP support is also provided to

simplify the configuration of the switches on the VLAN.

ꢀ Passwords - Multi-level user passwords secures switch

against unauthorized configuration

ꢀ SSH / SSL - Extends capability of password protection to

add encryption of passwords and data as they cross

the network

ꢀ Enable / Disable Ports - Capability to disable ports so that

traffic can not pass

Link Aggregation (802.3ad)

ꢀ 802.1q VLAN - Provides the ability to logically segregate

traffic between predefined ports on switches

ꢀ MAC Based Port Security - The ability to secure ports on

a switch so only specific Devices / MAC addresses can

communicate via that port

ꢀ 802.1x Port Based Network Access Control - The ability

to lock down ports on a switch so that only authorized

clients can communicate via this port

ꢀ Radius - Provides centralized password management

ꢀ SNMPv3 - encrypted authentication and access security

The link aggregation feature provides the ability to aggregate

several Ethernet ports into one logical link (port trunk) with

higher bandwidth. This provides an inexpensive way to set up

a high speed backbone to improve network bandwidth. This

feature is also known as "port trunking", "port bundling", "port

teaming", and "ethernet trunk".

IGMP Snooping

ROS uses IGMP snooping (Internet Group Management

Protocol v1&v2) to intelligently forward or filter multicast traffic

streams (e.g. MPEG video) to or from hosts on the network.

This reduces the load on network trunks and prevents

packets from being received on hosts that are not involved.

ROS™ has a very powerful implementation of

IGMP snooping that:

The ROS™ cyber security features are included to help

address the various industry specific security standards such

as NERC CIP, ISA S99, AGA 12, IEC 62443, ISO 17799:2005

and PCSRF SPP-ICS.

Enhanced Rapid Spanning Tree Protocol (eRSTP™)

RuggedCom eRSTP allows the creation of fault-tolerant ring

and mesh Ethernet networks that incorporate redundant links

1 eRSTP fault recovery times may be approximated as follows:

For 100 Mbps, fault recovery performance is <5ms/hop

For 1,000 Mbps, fault recovery performance is <5ms/hop + 20ms

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Wireless Serial Device Server with Ethernet over VDSL Interface

ROS Features

ꢀ Can be enabled on a per VLAN basis.

Port Configuration and Status

ꢀ Detects and filters all multicast streams regardless of

ROS™ allows individual ports to be 'hard' configured

for speed, duplex, auto-negotiation, flow control and more.

This allows proper connection with devices that do not

negotiate or have unusual settings. Detailed status of ports

with alarm and SNMP trap on link problems aid greatly in

system troubleshooting.

whether subscribers exist.

ꢀ Supports "router-less" operation by supporting an

"active" mode.

ꢀ Restores traffic streams immediately after an RSTP

topology change.

SNMP (Simple Network Management Protocol)

Port Statistics and RMON (Remote Monitoring)

ROS™ provides continuously updating statistics per port

that provide both ingress and egress packet and byte

counters as well as detailed error figures. Also provided

is full support for the RMON statistics, history, alarms, and

event groups. RMON allows for very sophisticated data

collection, analysis and detection of traffic patterns.

SNMP provides a standardized method for network

management stations the ability to interrogate devices from

different vendors. SNMP versions supported by ROS™ are

v1, v2c, and v3. SNMPv3 in particular provides security

features (such as authentication, privacy, and access control)

not present in earlier SNMP versions. ROS™ also supports

numerous standard MIBs (Management Information Base)

allowing for easy integration with any network management

system (NMS). A feature of SNMP supported by ROS™ is

the ability to generate "traps" upon system events. A NMS

can record traps from multiple devices providing a powerful

network troubleshooting tool. RuggedVueTM is RuggedCom's

NMS that provides graphical visualization of the network

and is fully integrated with all RuggedCom products.

Event Logging and Alarms

ROS™ records all significant events to a non-volatile

system log allowing forensic troubleshooting. Events

include link failure and recovery, unauthorized access,

broadcast storm detection, and self-test diagnostics

among others. Alarms provide a snapshot of recent

events that have yet to be acknowledged by the network

administrator. An external hardware relay is de-energized

during the presence of critical alarms allowing an

external controller to react if desired.

SCADA and Industrial Automation

ROS™ contains features that optimize network performance

and simplify switch management based on the unique

requirements found in SCADA and industrial automation

applications. Features such as Modbus TCP management for

retrieval of switch data using the ubiquitous Modbus protocol

and DHCP Option 82, a Rockwell Automation ODVA

requirement for IP address assignment based on the location

of the end device, provide capabilities not found in typical

"commercial" or "office grade" Ethernet switches.

HTML Web Browser and Telnet User Interfaces

ROS™ provides a simple, intuitive user interface for

configuration and monitoring via a standard graphical

web browser or via Telnet. All system parameters include

detailed on-line help to make setup a breeze. ROS™ ,

presents a common look and feel and standardized

configuration process allowing easy migration to other

RuggedCom managed products.

Port Based Network Access Control (802.1x)

ROS™ supports the IEEE 802.1x standard that defines

a mechanism for port-based network access control which

provides a means of authenticating and authorizing

devices attached to LAN ports.

Configuration via ASCII Text File

All configuration parameters are stored in an ASCII

formatted text file that can easily be transferred via TFTP

or Xmodem. The configuration file can be saved for

backup purposes and easily manipulated by a text editor.

The same text file can be downloaded to the switch at

a later date in order to re-configure or restore a previous

configuration.

Port Rate Limiting

ROS™ supports configurable rate limiting per port to limit

unicast and multicast traffic. This can be essential to

managing precious network bandwidth for service providers.

It also provides edge security for denial of service

(DOS) attacks.

Command Line Interface (CLI)

A command line interface can be used in conjunction

with remote shell to automate data retrieval, configuration

updates, and firmware upgrades. A powerful SQL-like

capability allows expert users the ability to selectively

retrieve or manipulate any parameters the device

has to offer.

Broadcast Storm Filtering

Broadcast storms wreak havoc on a network and can cause

attached devices to malfunction. This could be disastrous on

a network with mission critical equipment. ROS™ limits this

by filtering broadcast frames with a user-defined threshold.

Port Mirroring

ROS™ can be configured to duplicate all traffic on one port

to a designated mirror port. When combined with a

network analyzer, this can be a powerful troubleshooting tool.

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RuggedWireless RS920W

Wireless Serial Device Server with Ethernet over VDSL Interface

EMI and Environmental Type Tests

NEMA TS-2 Requirements

Test

Description

Levels

Performance Criteria*

Temperature: Low Temperature/Low

TS-2 1998, Section 2, para 2.2.7.3

89.0 VAC @ -34°C

Voltage

Temperature: Low Temperature/High

Voltage

TS-2 1998, Section 2, para 2.2.7.4

TS-2 1998, Section 2, para 2.2.7.5

TS-2 1998, Section 2, para 2.2.7.6

TS-2 1998, Section 2 para. 2.2.8.4

TS-2 1998, Section 2, para 2.1.10

135.0VAC @ -34°C

135.0VAC @ + 75°C

EUT Continued to function properly during

and following all temperature and humidity

testing

Temperature: High Temperature/High

Voltage

Temperature: High Temperature/Low

Voltage

89.0VAC @ + 75°C

EUT functioned properly following test pro-

cedure. No physical damage.

Vibration Endurance Test

Mechanical Shock

0.5g @ 30Hz for 1hr on all three planes

+/-10g half sine wave for 11msec on all

three planes

EUT functioned properly following test pro-

cedure. No physical damage.

One +/-300VDC pulse every other cycle

once every 3 seconds across 360 ° of line

cycle (2500W peak)

Electrical Transients: High Repetition Noise

(AC Terminals)

EUT functioned properly during and follow-

ing test procedure. No damage

TS-2 1992, Section 2, para. 2.1.6.1

TS-2 1998, Section 2 para. 2.1.6.2

One +/-600VDC pulse every second, ran-

domly distributed across 360 ° of line

cycle. Ten pulses total.

Electrical Transients: Low-Repetition High

Energy (AC Terminals

EUT functioned properly during and follow-

ing test procedure. No damage

One +/-300VDC pulse every second, mini- EUT functioned properly during and follow-

mum 5 pulses per port ing test procedure. No damage

One +/-1000VDC pulse every two seconds, EUT functioned properly following test pro-

3 per each polarity. cedure. No damage

TS-2 1998, Section 2, para 2.1.7

TS-2 1992, Section 2, para. 2.1.8

Electrical Transients: I/O Terminals

Electrical Transients: Nondestruct

Transient Immunity (AC Terminals)

IEC 61000-6-2 EMC Generic Standard: Immunity for Industrial Environments

Test

Description

Levels

+/- 4kV

+/- 8kV

RuggedCom Test Level

+/- 8kV

Performance Criteria*

Enclosure Contact

IEC 61000-4-2

ESD

Radiated RFI

Enclosure Air

Enclosure ports

Signal ports

D.C Power ports

A.C. Power ports

+/- 15kV

20V/m

+/- 4kV @ 2.5kHz

+/- 4kV

IEC 61000-4-3

IEC 61000-4-4

10 V/m, 80 to 1000Mhz

+/- 1kV @ 5kHz

+/- 2kV @ 5kHz

Burst (Fast Transient)

+/- 4kV

+/- 2kV line-to-earth, +/- 2kV

Signal ports

D.C Power ports

A.C. Power ports

Signal ports

+/- 1kV line-to-earth

line-to-line

+/- 4kV line-to-earth, +/- 2kV

line-to-line

IEC 61000-4-5

IEC 61000-4-6

Surge

+/- 0.5kV line-to-earth/line

+/- 2kV line-to-earth, +/- 1kV +/- 4kV line-to-earth, +/- 2kV

line-to-line

10V @ 0, 5-80 MHz

D.C Power ports

A.C. Power ports

Earth ground ports

Enclosure ports

10V @ 0, 5-80 MHz

30 A/m @ 50, 60 Hz

10V @ 0, 5-80 MHz

Induced (Conducted) RFI

40 A/m continuous, 1000

A/m for 1s

IEC 61000-4-8

IEC 61000-4-11

Magnetic Field

Voltage Dips

30% reduction for 0.5

period

30% for 1 period

A.C. Power ports

>95% reduction for 250

100% for 5 periods, 100%

for 50 periods

periods

2kVac

Signal ports

D.C. Power ports

A.C. Power ports

Signal ports

N/A

(Fail-Safe Relay output)

IEC 60255-5

Dielectric Strength

H.V. Impulse

2kVac

5kV

(Fail-Safe Relay output)

D.C. Power ports

A.C. Power ports

5kV

Environmental Type Tests

Description

Test

IEC 60068-2-1

IEC 60068-2-2

Test Levels

-40°C, 16 Hours

+85°C, 16 Hours

Severity Levels

Cold Temperature

Dry Heat

Test Ad

Test Bd

N/A

95% (non-condensing),

55°C , 6 cycles

2g @ (10 - 150) Hz

30g @ 11mS

IEC 60068-2-30

Humidity (Damp Heat, Cyclic)

Test Db

N/A

IEC 60255-21-1

IEC 60255-21-2

Vibration

Shock

Tests Fc

Tests Ea

Class 2

Notes: 1. Class 2 refers to "Measuring relays and protection equipment for which a very high security margin is required or where the vibration levels are very high, ( e.g. shipboard application and for severe transportation conditions")

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RuggedWireless RS920W

Wireless Serial Device Server with Ethernet over VDSL Interface

Technical Specifications

Power Supply

Network Management

ꢀ Power Consumption: 10W MAX

ꢀ ROSVue HTTP graphical web-based

ꢀ 24VDC: 9-36VDC, 0.4A

ꢀ SNMP v1, v2c, v3

ꢀ 48VDC: 36-72VDC, 0.2A

ꢀ Telnet, VT100

ꢀ HI Voltage AC/DC: 88-300VDC, 85-264VAC, 0.1A

ꢀ Command Line Interface (CLI)

Critical Alarm Relay

ꢀ Form-C failsafe contact relay: 1A@30VDC

IEEE Compliance

ꢀ.802.3-10BaseT

ꢀ.802.3u-100BaseTX, 100BaseFX

ꢀ.802.3x-Flow Control

ꢀ.802.3z-1000BaseLX

ꢀ.802.3ab-1000BaseTX

ꢀ.802.3ad-Link Aggregation

ꢀ.802.1D-MAC Bridges

ꢀ.802.1D-Spanning Tree Protocol

ꢀ.802.1p-Class of Service

ꢀ.802.1q-VLAN Tagging

ꢀ.802.1D-2004-Rapid Spanning Tree Protocol

ꢀ.802.1x-Port Based Network Access Control

Physical

ꢀ Height: 7.4"

ꢀ Width: 2.6"

ꢀ Depth: 5.0"

ꢀ Weight: 2.7lbs

ꢀ Ingress Protection: IP40 (1mm objects)

ꢀ Enclosure: 20 AWG galvanized steel enclosure

ꢀ Mounting: DIN rail or panel mounted

Switch Properties

ꢀ Switching method: Store & Forward

IETF RFC Compliance

ꢀ.RFC768-UDP

ꢀ Switching latency: 8 us (100Mbps)

ꢀ Switching bandwidth: 1.8Gbps

ꢀ.RFC783-TFTP

ꢀ MAC address table size: 16kbytes

ꢀ.RFC791-IP

ꢀ Priority Queues: 4

ꢀ.RFC792-ICMP

ꢀ Frame buffer memory: 1 Mbit

ꢀ.RFC793-TCP

ꢀ VLANs: 64

ꢀ.RFC826-ARP

ꢀ IGMP and static multicast groups: 256

ꢀ.RFC854-Telnet

ꢀ Port rate limiting: 128kbps, 256, 512, 4, 8Mbps

ꢀ.RFC894-IP over Ethernet

ꢀ.RFC1112-IGMP v1

ꢀ.RFC1519-CIDR

ꢀ No head of line blocking

Approvals

ꢀ.RFC1541-DHCP (client)

ꢀ.RFC2030-SNTP

ꢀ.RFC2068-HTTP

ꢀ.RFC2236-IGMP v2

ꢀ.RFC2284-EAP

ꢀ.RFC2475-Differentiated Services

ꢀ.RFC2865-Radius

ꢀ.RFC3414-SNMPv3-USM

ꢀ.RFC3415-SNMPv3-VACM

ꢀ Hazardous Locations: Class 1, Division 2

ꢀ ISO: Designed and manufactured using a ISO9001: 2000

certified quality program

ꢀ CE Marking

ꢀ Emissions: FCC Part 15 (Class A),

EN55022 (CISPR22 Class A)

ꢀ Safety: cCSAus (Compliant with CSA C22.2 No. 60950,

UL 60950, EN60950)

ꢀ Laser Eye Safety (FDA/CDRH): Complies with 21

IETF SNMP MIBS

CFR Chapter1, Subchapter J.

ꢀ RFC1493-BRIDGE-MIB

Warranty

ꢀ RFC1907-SNMPv2-MIB

ꢀ 5 Years-Applicable to design or manufacturing

ꢀ RFC2012-TCP-MIB