Related Manuals for Cabletron Systems LR-2000
Summary of Contents for Cabletron Systems LR-2000
- Page 1 LR-2000 LOCAL REPEATER USER'S MANUAL Inc. The Complete Networking Solution CABLETRON SYSTEMS, P.O. Box 6257, E. Rochester, New Hampshire 03867...
- Page 2 POWER SUPPLY CORD The main cord used with this equipment must be a 2 conductor plus ground type with minimum 0.75 mm square conductors and must incorporate a standard IEC appliance coupler on one end and a main plug on the other end which is suitable for the use and application of the product and that is approved for use in the country of application.
- Page 3 KNOWN, THE POSSIBILITY OF SUCH DAMAGES. Copyright February 1990 by Cabletron Systems Inc. P.O. Box 6257, E. Rochester, NH 03867-6257 All Rights Reserved Printed in the United States of America Order number: 9030004-02 Feb. 90 LANVIEW, LR-2000 and LAN-MD are trademarks of Cabletron Systems Inc.
- Page 4 Move the LR-2000 away from the receiver. • Plug the LR-2000 into a a different outlet so that the repeater and the receiver are on different branch circuits. If necessary, the user should consult the dealer or an experienced radio/television technician for additional suggestions.
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Page 5: Table Of Contents
2.2 LOCATION GUIDELINES ...2-1 2.3 SPECIFICATIONS ...2-2 CHAPTER 3 - CONNECTING THE LR-2000 3.1 UNPACKING THE LR-2000 ...3-1 3.2 CONNECTING THE LR-2000 TO YOUR NETWORK ...3-1 CHAPTER 4 - TESTING AND TROUBLESHOOTING 4.1 INSTALLATION CHECK-OUT ...4-1 4.2 USING LANVIEW ...4-2... -
Page 6: Chapter 1 - Introduction
This unit fully conforms to IEEE 802.3 specifications and provides the flexibility to interconnect networks using Ethernet Version 1, Version 2, and/or IEEE 802.3 equipment. You should read this manual thoroughly to gain a full understanding of the LR-2000 and its capabilities 1.1 USING THIS MANUAL Chapter 1, Introduction, discusses the capabilities of Cabletron Systems' LR-2000 Local Repeater. -
Page 7: The Lr-2000 Local Repeater
If a problem develops on a segment connected to the LR-2000, just those devices on that segment will be affected. Once the problem is corrected, those devices will automatically be reconnected to the network. -
Page 8: Chapter 2 - Installation Requirements/Specifications
This chapter lists the location and network requirements needed for connecting the LR-2000 to your network. No special skills or tools are required to install the unit on an Ethernet network. This chapter also lists the specifications and power requirements for the LR-2000. -
Page 9: Specifications
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.3 SPECIFICATIONS This section contains the specifications for the Cabletron Systems LR-2000 Local Repeater. Cabletron Systems reserves the right to change these specifications at any time without notice. GENERAL Delay Times: (any segment in to all segments out) - Page 10 6 Power return 7 No Connection 8 Logic Ref. Connector Shell: POWER SUPPLY REQUIREMENTS Note: The LR-2000 automatically differentiates and selects for the proper input voltage. Parameter Input Voltage Vac 47-63 Hz 120 Volts Input: 220 Volts Input: Input Current:...
- Page 11 SAFETY WARNING: It is the responsibility of the person who sells the system of which the LR-2000 will be a part of to ensure that the total system meets allowed limits of conducted and radiated emissions. Designed in accordance with UL478, UL910, NEC 725-2(b), CSA, IEC, TUV, VDE 0871B.
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Page 12: Chapter 3 - Connecting The Lr-2000
Three 6 in. cable ties. 3.2 CONNECTING THE LR-2000 TO YOUR NETWORK The LR-2000 is designed to be easily connected to your network without the use of any special tools or equipment. Connect the LR-2000 to the network as follows: Using the two 8-32 screws (3, Fig. - Page 13 10. Using the cable ties provided, strain relief both AUI cables and the power cord to the cable supports located on the back side of the repeater. The LR-2000 is now ready for operation. It is recommended that the connections be tested prior to transmitting data. Refer to Chapter 4, Testing and Troubleshooting.
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Page 14: Chapter 4 - Testing And Troubleshooting
TESTING AND TROUBLESHOOTING This chapter lists procedures to test the LR-2000 Local Repeater after it has been connected to the network. A description of LANVIEW and its function in troubleshooting physical layer network problems is also given. 4.1 INSTALLATION CHECK-OUT This section contains procedures to test the LR-2000 Local Repeater after it has been installed to ensure that the the physical layer of the network is operating properly. -
Page 15: Using Lanview
LR-2000. Refer to Figure 4-2. Power (PWR) LED When lit, this green LED indicates that the LR-2000 is receiving power. If this LED is not lit, the problem may be with the input power or the LR-2000. Transceiver Power (XCVR PWR) LED When lit, this green LED indicates that the LR-2000 is providing power to the external transceivers connected to the LR-2000. - Page 16 Figure 4-2. LANVIEW LEDs Jam (JAM) LED This red LED normally flashes on and off to indicate that the LR-2000 is propagating a collision from the segment on which the collision is occurring to the other segment connected to the repeater. When this LED flashes, a pattern of 1,0 is sent to each segment to indicate that a collision is occurring on one of the segments.