Dissemination or reproduction of this document, or evaluation and communication of its contents, is not authorized except where expressly
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This document contains proprietary information, which is protected by copyright. All rights are reserved. No part of this document may be
photocopied, reproduced or translated to another language without the prior written consent of RuggedCom Inc.
Disclaimer Of Liability
We have checked the contents of this manual against the hardware and software described. However, deviations from the description cannot
be completely ruled out.
RuggedCom shall not be liable for any errors or omissions contained herein or for consequential damages in connection with the furnishing,
performance, or use of this material.
The information given in this document is reviewed regularly and any necessary corrections will be included in subsequent editions. We appreciate
any suggested improvements. We reserve the right to make technical improvements without notice.
Registered Trademarks
ROX™, RuggedBackbone™, RuggedRated™ and eRSTP™ are trademarks of RuggedCom Inc. ROS®, RuggedRouter® and RuggedSwitch®
are registered trademarks of RuggedCom Inc. Other designations in this manual might be trademarks whose use by third parties for their own
purposes would infringe the rights of the owner.
Linux® is the registered trademark of Linus Torvalds in the U.S. and other countries.
The registered trademark Linux® is used pursuant to a sublicense from LMI, the exclusive licensee of Linus Torvalds, owner of the mark on
a world-wide basis.
Warranty
Five (5) years from date of purchase, return to factory. For warranty details, visit www.RuggedCom.com or contact your customer service
representative.
Contacting RuggedCom
Corporate HeadquartersUS HeadquartersEurope Headquarters
RuggedCom Inc.
Federal Communications Commission Radio Frequency Interference
Statement
This equipment has been tested and found to comply with the limits for a Class A digital device
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense.
Caution: LASER
This product contains a laser system and is classified as a CLASS 1 LASER
PRODUCT. Use of controls or adjustments or performance of procedures other than
those specified herein may result in hazardous radiation exposure.
Caution: Service
This product contains no user-serviceable parts. Attempted service by unauthorized
personnel shall render all warranties null and void.
Changes or modifications not expressly approved by RuggedCom Inc. could invalidate
specifications, test results, and agency approvals, and void the user’s authority to
operate the equipment.
Should this device require service, refer to Appendix A, Warranty in this guide.
Caution: Physical Access
This product should be installed in a restricted access location where access can only
be gained by service personnel or users who have been instructed about the reasons
for the restrictions applied to the location and about any precautions that shall be taken;
and access is through the use of a tool or lock and key, or other means of security,
and is controlled by the authority responsible for the location.
Caution: Hot Surfaces
When in operation, regions of the unit surface may be hot.
Caution: Lithium Battery
This product contains a Lithium battery that is not replaceable by the operator or by
service personnel.
The RuggedSwitch™ RS900GP is an industrially hardened, fully managed Ethernet switch
providing dual fiber optical Gigabit Ethernet ports and eight Fast Ethernet copper ports - each
capable of supplying high power 802.3at compliant power over Ethernet. Designed to operate
reliably in harsh industrial environments, the RS900GP provides a high level of immunity to
electromagnetic interference and heavy electrical surges typical of environments found in electric
utility substations, factory floors or in curb side traffic control cabinets. An operating temperature
range of -40°C to +85°C coupled with hazardous location certification, a powder coated aluminum
enclosure and optional conformal coating allows the RS900GP to be placed in almost any location.
The embedded Rugged Operating System (ROS™) provides advanced networking features such
as Enhanced Rapid Spanning Tree (eRSTP™), Port Rate Limiting and a full array of intelligent
functionality for high network availability and manageability.
Ethernet Ports
• Up to 2 - Fiber Optic Gigabit-Ethernet Ports(100/1000BaseX)
• 8 - Fast Ethernet Ports (10/100BaseTX) all external 802.3af/802.3at compliant PoE
• Up to 2 - 10/100/1000 BaseTX copper ports
• Full compliance with IEEE: 802.3, 802.3u and 802.3z
• Non-blocking, store and forward switching
• Full duplex operation and flow control (IEEE 802.3x)
• Industry standard fiber optical connectors: LC, SC, SFP
• Bi-Directional simplex fiber support
• Long haul optics allow Gigabit distances up to 70km
Power Over Ethernet (PoE)
• 8-10/100 BaseTx 802.3af/802.3at compliant ports
• Data and power over a single Ethernet cable
• Auto-sensing ports that provide power only to PoE end devices
RuggedRated™ for Reliability in Harsh Environments
The RS900GP low voltage DC power supply features reverse polarity protection and dual
independent inputs. This feature allows the connection of two DC sources with the same nominal
voltage to provide redundant power supply inputs. The DC source must be connected to the DC
inputs according to the polarity markings on the unit.
1.Equipment must be installed according to the applicable country wiring codes.
2.Surge Ground should be connected to Chassis Ground via a braided cable or
other appropriate ground wire.
3.Chassis Ground must be connected to the protective earth.
4.All line-to-ground transient energy is shunted to the Surge Ground terminal. In
cases where users require the DC inputs to be isolated from ground, remove the
ground braid between Surge and Chassis Ground. Note that all line-to-ground
transient protection circuitry will be disabled.
The “Failsafe” output relay is provided to signal critical error conditions that may occur on the
RS900GP. The contacts are energized upon power up of the unit and remain energized until an
alarm condition or power loss occurs.
Figure 2.7. Failsafe Output Relay
2.5. RS232 Port Wiring
The RS232 port is used for configuring the unit. A straight-through serial cable with a DB-9
connector is required. There is no need to crossover the Transmit and Receive signals from the
PC side since this has been done internally as shown in the figure below.
Figure 2.8. RS232 Female Connector
PinSignal
1No Connection
2Transmit Data
3Receive Data
4No Connection
5Ground
6No Connection
7No Connection
8No Connection
9No Connection
Table 2.1. RS232 Female DCE Pinout
This port is not intended to be a permanent connection and the cable shall be less
than 2m (6.5 ft) in length.
The RS900GP has several 10/100BaseTX ports that allow connection to standard CAT-5 UTP
cable with RJ45 male connectors. The RJ45 receptacles are directly connected to the chassis
ground on the unit and can accept shielded CAT-5 cables. If shielded cables are used, care must
be taken to ensure the shielded cables do not form a ground loop via the shield wire and the RJ45
receptacles at either end.
Figure 2.9. RJ45 Port Connector
RJ45 Pin10/100Base-Tx10/100/1000Base-Tx
1RX+A+
2RX-A3TX+B+
4NCC+
5NCC6TX-B7NCD+
8NCD-
Table 2.2. RJ45 Ethernet Pin Assignment
RuggedCom does not recommend the use of CAT-5 cabling of any length for critical
real-time substation automation applications. However, transient suppression circuitry
is present on all copper ports to protect against damage from electrical transients and
to ensure IEC 61850-3 and IEEE 1613 Class 1 conformance. This means that during
the transient event communications errors or interruptions may occur but recovery is
automatic.
RuggedCom also does not recommended to use these ports to interface to field
devices across distances which could produce high levels of ground potential rise, (i.e.
greater than 2500V) during line to ground fault conditions.
For maximum flexibility, RuggedCom Inc. offers a number of different transceiver choices for
Gigabit fiber optic communications. The following table details fiber optic specifications based on
the order code/transceiver selected at time of ordering.
RuggedCom warrants this product for a period of five (5) years from the date of purchase. This
product contains no user-serviceable parts. Attempted service by unauthorized personnel shall
render all warranties null and void. For warranty details, visit www.RuggedCom.com or contact
your customer service representative.
Should this product require service, contact the factory at: