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Chapter 1

Introduction

T

he 

Micro 100-TX24

 Fast Ethernet Repeater provides 100BASE-TX functionality for 24 RJ-45 ports. The repeater’s

uplink capability lets you connect the repeater to another 

Micro 100-TX24

 repeater or other 100BASE-TX repeater.

For backup power, you can install an optional redundant power supply. The 

Micro 100-TX24

 repeater’s front panel

makes it easy to view the current operating status.

Features

The 

Micro 100-TX24

 repeater includes these features:

t

24 shielded RJ-45 ports that support 100BASE-TX connections

t

Uplink port that enables bridging to 100BASE-TX topologies

t

LEDs that indicate power supply status (A and B), collisions, and port link/activity/partition status

t

Modular power supply design for easy removal and replacement

t

Auto-sensing power supply operates within the range of a 100-240 VAC, 50-60 Hz power source

t

Optional dual-redundant power supply

t

Class II support for 100BASE-TX

t

Compatibility with the IEEE 802.3u 100BASE-TX repeater specification

t

Chassis that can stand alone or be mounted in a standard, EIA 19-inch rack

t

Surface-mount technology

t

Conforms to FCC, CISPR, UL, TUV, CSA, and CE test standards

1 - 1

Summary of Contents for Micro 100-TX24

Page 1: ...Micro 100 TX24TM Fast Ethernet Repeater User s Guide...

Page 2: ...in it are copyrighted with all rights reserved Under the copyright laws neither this manual nor the software may be copied in whole or in part without written consent of NetWorth Inc except as provid...

Page 3: ...ours and Company All other trademarks are the property of their respective owners FCC Radio Frequency Interference Regulatory Statement Note This equipment has been tested and found to comply with the...

Page 4: ...n 1991 Safety of Information Technology Equipment t CSA Standard CAN CSA C22 2 No 950 M 93 Canadian Standards Association for Information Technology Equipment t TUV Rheinland EN60950 1988 A1 1990 A2 1...

Page 5: ...ts 2 2 Twisted Pair UTP Wire Requirements 2 2 Installing New Wire 2 2 System Planning Charts 2 4 Micro 100 TX24 Repeater Setup and Cabling Chart 2 4 Rack Inventory Chart 2 5 Chapter 3 Installing the R...

Page 6: ...ew of the Micro 100 TX24 repeater and describes its components and features Chapter 2 Planning Repeater Installation discusses special requirements for operating the repeater and provides charts that...

Page 7: ...ded RJ 45 ports that support 100BASE TX connections t Uplink port that enables bridging to 100BASE TX topologies t LEDs that indicate power supply status A and B collisions and port link activity part...

Page 8: ...t Repeater User s Guide t Registration card t Warranty card NetWorth Inc Limited Warranty Rack Mounting Brackets Micro 100 TX24 Fast Ethernet Repeater User s Guide User s Guide Product Registration Ca...

Page 9: ...and back panel MDI X MDI X 1 13 2 14 3 15 4 16 5 17 6 18 7 19 8 20 9 21 10 22 11 23 12 24 COL PWR A PWR B MDI MDI X Power Supply and 100BASE T Collision Status Indicators Uplink Switch 24 RJ 45 UTP P...

Page 10: ...d providing power to the hub No power is supplied to the hub by the specified power supply The power supply is installed but not powered on or is defective COL Flashing yellow Off The hub detects a co...

Page 11: ...nternal crossover of the receive and transmit lines enabling the port to connect to a network interface card using standard 8 wire UTP cable OUT ports use a straight through uncrossed connection MDI M...

Page 12: ...tude 0 to 10 000 feet 0 to 3 km t Clearance minimum of 2 inches 5 1 centimeters on each side of the repeater for proper ventilation Electrical Requirements The electrical requirements for a Micro 100...

Page 13: ...t be unshielded twisted pair UTP Category 5 t Two pairs of the four pair wiring are used for signalling t Depending on building codes different insulation materials may be required Plenum rated or TEF...

Page 14: ...ng in a straight through and crossover twisted pair cable Twisted Pair No Pin No Signal Description at DTE To Pin No Signal Description at Repeater 1 1 2 TD TD 1 2 RD RD 2 3 6 RD RD 3 6 TD TD Twisted...

Page 15: ...rt Connects To 8 17 7 16 22 23 24 6 15 21 5 11 12 13 14 20 4 3 10 19 2 9 18 1 Micro 100 TX24 Repeater Setup and Cabling Chart Unit Number Building Location Rack Mount Table Uplink Switch Setting MDI X...

Page 16: ...t to record the components installed in a particular rack Wiring Closet Number Rack Number Installer Date Example Micro 100 TX24 Micro 100 TX24 Figure 2 3 Rack Inventory Chart Planning Repeater Instal...

Page 17: ...repeater on a table top or shelf attach the supplied adhesive backed rubber feet as described in the following steps 1 Turn the repeater over so that its bottom side faces up 2 Remove the four rubber...

Page 18: ...shown in Figure 3 1 and secure it with the smaller bracket screws Then attach the remaining bracket to the other side of the repeater After you attach both mounting brackets position the bracket slot...

Page 19: ...enabling the port to connect to a network interface card using standard 8 wire UTP cable OUT ports use a straight through uncrossed connection which lets you interconnect the Micro 100 TX24 repeater...

Page 20: ...is 100 meters The total maximum end to end length of the collision domain is 205 meters MDI X MDI X 1 13 2 14 3 15 4 16 5 17 6 18 7 19 8 20 9 21 10 22 11 23 12 24 COL PWR A PWR B MDI MDI X MDI MDI X S...

Page 21: ...h Connecting the repeater to the power source via the power cable s three pronged plug powers up the repeater Disconnecting Power To power down the repeater disconnect the power cord s three pronged c...

Page 22: ...opening until its 10 pin connector engages with the internal power connector and the face of the module is flush with the repeater s back panel 3 Secure the power supply by tightening its two spring...

Page 23: ...d Collision COL t 24 RJ 45 port LEDs to indicate 100BASE TX status Controls t One two position MDI MDI X uplink switch for uplink port Power Requirements t Voltage 100 240 VAC t Power 1 5 0 75 Amps 1...

Page 24: ...ironmental Specifications Operating Environment t 32 to 122 F 0 to 50 C t 15 to 95 humidity at 50 C non condensing t 0 to 10 000 feet 0 to 3 km Storage Environment t 32 to 151 F 0 to 66 C t 15 to 95 h...

Page 25: ...network If two or more Media Access Controllers MAC are within the same collision domain and both transmit at the same time a collision will occur MACs that are separated by a repeater are in the sam...

Page 26: ...uses Normal Link Pulses NLPs which indicate link status only 10BASE T and 100BASE T nodes equipped with auto negotiation exchange information using a Fast Link Pulse FLP mechanism which is compatible...

Page 27: ...tential for signal interference between pairs In cables greater than 25 pairs the twisted pairs are grouped and bound together in a common cable sheath Twisted pair cable is the most common type of tr...

Page 28: ...pliance 2 1 crossover 1 4 3 3 D dimensions 2 2 E EIA 1 1 F features 1 1 front panel 1 3 H humidity ranges 2 1 I IEC connector 3 5 3 6 IEEE 1 1 installation 3 1 planning 2 1 requirements 2 1 2 3 L LEDs...

Page 29: ...2 regulatory conformance 1 1 requirements electrical 2 1 environmental 2 1 spatial 2 2 RJ 45 3 3 connector 3 3 plug pin locations 2 3 port 1 1 1 4 3 3 rubber feet 1 2 attaching 3 1 S straight through...

Page 30: ...707119 001 10 95...

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