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  Installation Guide

A device that is wired straight through needs one crossover connection:

If the cable is…
straight through

crossover

… the MDI-II to MDI-X Switch Setting should be

X

II

A device that is wired crossover needs a parallel connection:

If the cable is…
straight through

crossover

… the MDI-II to MDI-X Switch Setting should be

II

X

•  The parallel symbol (

II

) indicates a straight through or parallel connec-

tion. Switch is out. 

(default)

•  The cross symbol (

X

) indicates a crossover connection. Switch is in.

Use the tables below as a guide.

Figure 1.

DIP Switches

The 10/100 AutoTwister includes a set of six DIP switches located on the 

back of the unit. (See 

Figure 2.

) These switches allow you to select the 

operational mode best suited to your network’s configuration.

When setting DIP switches, the ON position is when the DIP switch is 

pushed up toward the top of the unit. The OFF position is when the DIP 

switch is pushed down toward the bottom.

Summary of Contents for Metrobility 10/100 AutoTwister 2643-13-01

Page 1: ...Installation User Guide Models 2643 13 01 2643 14 01 2643 15 01 2643 16 01 2643 17 01 2643 1E 2643 1G 01 2643 1J 01 2643 1K 01 2643 1M 01 2643 1X 01 2643 1Y 01 Metrobility 10 100 AutoTwister ...

Page 2: ...e FX multimode SC 2643 14 01_ _____10 100Base TX to 100Base FX singlemode SC 2643 15 01_ _____10 100Base TX to 100Base FX multimode ST 2643 16 01_ _____10 100Base TX to 100Base FX singlemode ST 2643 17 01_ _____10 100Base TX to 100Base FX singlemode SC 40km 2643 1E 01_ ____10 100Base TX to 100Base FX multimode MT RJ 2643 1G 01_____10 100Base TX to 100Base FX multimode VF 45 2643 1J 01 _ ____10 100...

Page 3: ...arry Forward LLCF 16 Auto Recovery 17 Auto Recovery Application Example 18 Topology Solutions 19 Technical Specifications 20 Product Safety EMC and Compliance Statements 22 Warranty and Servicing 23 Metrobility Metrobility Optical Systems NetBeacon AutoTwister and twister are registered trademarks of Telco Systems Inc a BATM company The information contained in this document is assumed to be corre...

Page 4: ... remote network connection on the fiber optic port Link Loss Carry Forward LLCF functionality to aid in troubleshooting a remote network connection An MDI II to MDI X switch that eliminates the need for crossover cables on the twisted pair port Full duplex flow control on each port Store and forward switching to improve overall network performance by buffering packets during times of heavy congest...

Page 5: ...nvironments The unit must be located within six 6 feet of the AC power source being used and placed as far away as possible from electrical noise generating equipment such as copiers electrostatic printers and other motor ized equipment If exposed twisted pair wiring is used nearby the wiring should be routed as far away as possible from power cords and data cables to minimize interference The uni...

Page 6: ...ates a straight through or parallel connec tion Switch is out default The cross symbol X indicates a crossover connection Switch is in Use the tables below as a guide Figure 1 DIP Switches The 10 100 AutoTwister includes a set of six DIP switches located on the back of the unit See Figure 2 These switches allow you to select the operational mode best suited to your network s configuration When set...

Page 7: ...ed is set by the 100M1 switch 10 100Mbps Switch 100M1 Switch 100M1 controls the speed setting for the copper port If auto ne gotiation is disabled the port speed will be the same as this switch setting where ON is 100Mbps and OFF is 10Mbps The default speed setting is 100Mbps When auto negotiation is enabled the 100M1 switch setting is ignored Half Full Duplex Switch FD1 FD2 Switch FD1 determines ...

Page 8: ...upports Link Loss Carry Forward functionality to help with troubleshooting remote connections Unlike LLR which only applies to the fiber port LLCF affects both ports on the AutoTwister When LLCF is enabled the loss of inbound link pulses on a port stops the transmission of outbound link pulses on the opposite port For example if LLCF is enabled the loss of incoming link pulses at Port 1 will stop ...

Page 9: ...0 0 1 N O N O N O Connect to the Network The Metrobility 10 100 AutoTwister offers the ease of plug and play installation Fiber Optic Connections The 2643 13 01 2643 15 01 2643 1E 01 2643 1G 01 and 2643 1K 01 provide one set of FX multimode SC ST MT RJ VF 45 LC connectors respectively and support a maximum segment length of up to 2km for remote links The 2643 14 01 2643 16 01 and 2643 1M 01 provid...

Page 10: ...lementary pairs That is a 1X model must be connected to a 1Y The 1X cards are designed to transmit data at a wavelength of 1550nm and receive at 1310nm Corre spondingly the 1Y cards transmit data at 1310nm and receive at 1550nm Twisted Pair Connection Each AutoTwister provides one shielded RJ 45 connector that supports a maximum segment length of up to 100 meters Use Category 3 4 or 5 cables for 1...

Page 11: ...llow type plug for insertion into the DC jack located on the back panel and the standard IEC 320 type AC power receptacle All standalone AutoTwister standalone units use a 90 260V universal desktop power supply Connect the DC input jack located on the back of the AutoTwister before connecting to the AC outlet Upon receiving power the AutoTwister goes into normal operation mode and automatically pr...

Page 12: ... cord set consisting of a minimum No 18 AWG type SVT or SJT three conductor cord 15 ft maximum length and a parallel blade grounding type attachment plug rated 15A 125V AC 230V USA Use a UL listed cord set consisting of a mini mum No 18 AWG type SVT three conductor cord 15 ft maxi mum length and a Tandem blade grounding type attachment plug rated 15A 250V 240V outside USA Use a cord set consisting...

Page 13: ...LEDs LED Label LED Name Color Status Function PWR power green steady The unit is ON Copper Port LEDs 100 speed green steady The speed setting of the port is 100Mbps when lit It is 10Mbps when not lit FD duplex green steady The port is in full duplex mode when lit It is in half duplex when not lit RX receive green blinking The port is receiving data LK link green steady Verifies that the port has a...

Page 14: ...ckets will be dropped Auto Recovery The AutoTwister includes an auto recovery circuit that allows you to transparently connect a pair of AutoTwister units between two network devices This enables you to design a redundant path between 10Mbps and 100Mbps devices allowing both end devices to lose link if any part of the connection is broken To activate auto recovery all of the following conditions m...

Page 15: ...typical network configuration with good link status us ing AutoTwister standalone units for remote connectivity If one of the optical conductors is bad as shown in the diagram box below the AutoTwister with LLR enabled will return a no link condition to its link partner This aids the administrator in determining the source of the loss PC Remote Station Switch Hub w SNMP Switch Hub w SNMP AutoTwist...

Page 16: ... LED unlit no link LLCF is ON LLCF is ON Remote Cable If a connection breaks the AutoTwister standalone units carry that link loss forward to the switch hubs which generate a trap to the management stations A network administrator can then determine the source of the problem Link Loss Carried Forward Link Loss Carried Forward LED lit established link LED unlit no link Management Station Management...

Page 17: ...ed OFF LLR2 enabled ON LLCF enabled ON Because LLR is enabled on both units auto recovery is required to prevent the two fiber ports from ending up in a deadlock situation with each waiting for the other to transmit first Auto recovery allows the deadlock to be broken by periodically send ing out pulses from the fiber port forcing the AutoTwister to establish its fiber link if the line is intact T...

Page 18: ...w illustrates how the two switch hubs are alerted to a broken fiber cable in the main link thus activating the backup link with AutoTwister standalones B1 and B2 Sequence of events AutoTwister A1 stops transmitting data to AutoTwister A2 AutoTwister A2 senses the loss of link and stops transmitting link pulses to AutoTwister A1 and the 10Mbps switch hub AutoTwister A1 receives the no link conditio...

Page 19: ...Metrobility 10 100 AutoTwister 19 Topology Solutions ...

Page 20: ...__________________________________ 17 dB Supported Link Length_________________________________up to 2km full duplex Cable Type_ _____________________________________ 50 125 62 5 125 µm F O Singlemode Fiber Optic Interface 2643 14 01 2643 16 01 2643 1M 01 Connector___________________________________________________SC ST LC Wavelength____________________________________________________ 1310nm RX In...

Page 21: ..._______________________________ 15 dBm to 8 dBm 9 125 µm Typical Link Budget_______________________________________________ 20 dB 2643 1X 01 TX Wavelength_____________________________________________ 1550nm RX Wavelength_____________________________________________ 1310nm 2643 1Y 01 TX Wavelength_____________________________________________ 1310nm RX Wavelength_____________________________________...

Page 22: ...ed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interfer ence will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by ...

Page 23: ...all be at Telco s option and expense to repair the defective product or part or deliver to Customer an equivalent product or part to replace the defective item All products that are replaced will become the property of Telco Systems Replacement products or parts may be new or reconditioned Telco warrants any replaced or repaired product or part for ninety 90 days from shipment or the remainder of ...

Page 24: ...5660 264313 N 12 10 US Headquarters 15 Berkshire Road Mansfield MA USA 02048 tel 1 781 551 0300 fax 1 781 255 2344 www telco com ...

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