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Black Box LH1500

A

Media Converters Installation and User Guide (08/05)

cable. It is necessary to calculate the PDV of the overall collision domain (see Section

3.2.2) for proper operation when the LH1500

A

is used in shared half-duplex applications.

17

s or users via fiber.

Black Box LH1500

A

provides connectivity to server

LH1500

A

1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24

100 BASE-TX

wiring segment

LINK

LINK

PWR

Black Box

Media Converter

100
Mb/s

UP LINK

1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24

1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24

1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24

100 BASE-FX

wiring segment

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Summary of Contents for LH1500A

Page 1: ...18 724 746 5500 FAX 724 746 0746 July 2005 LH1500A R3 Black Box LH1500A LH1500AE R3 LH1501A R3 LH1501AE R3 Fast Ethernet Media Converters Media Converter 100 Mb s LINK PWR LINK RX TX BLACK BOX Crossov...

Page 2: ...Xerox Corporation All applied for and registered trademarks are the property of their respective owners Important Black Box LH1500A Media Converters contain no user serviceable parts Attempted servic...

Page 3: ...onverters Installation and User Guide 08 05 Contacting Black Box Please use the mailing address and phone and fax numbers listed below Black Box Corporation 1000 Park Dr Pittsburgh PA 15055 Phone 724...

Page 4: ...mits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules which are designed to provide reasonable protection against such interference when the eq...

Page 5: ...ues de classe A prescrites dans le R glement sur le brouillage radio lectrique publ par le minist re des Communications du Canada __________________________________________________________ NORMAS OFIC...

Page 6: ...odo otro servicio deber ser referido a personal de servicio calificado 9 El aparato el ctrico debe ser situado de tal mannera que su posici n no interfiera su uso La colocaci n del aparato el ctrico s...

Page 7: ...r localizada lejos de las lineas de energia 16 El cable de corriente deber ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado debe ser tomado de tal manera qu...

Page 8: ...e Package and Product 7 2 2 Product Description 9 2 3 Features and Benefits 13 2 4 Applications 15 3 0 INSTALLATION 18 3 1 Locating the Media Converter Unit 18 3 2 Calculating Overall Segment Distance...

Page 9: ...types 39 4 2 Front Panel LEDs Black Box LH1500A s 40 4 3 Up Link Switch on TX port 40 5 0 TROUBLESHOOTING 42 5 1 Before Calling for Assistance 42 5 2 When Calling for Assistance 44 5 4 Shipping and Pa...

Page 10: ...Performance Data Rate 100 Mb s Half or Full Duplex auto sensing 800ns 80 bit times Path Delay Value PDV for conversion delay Network Standards Fast Ethernet IEEE 802 3u 100BASE TX 100BASE FX Black Box...

Page 11: ...ernet Segment Lengths 100BASE TX twisted pair 100 m 328 ft 100BASE FX Fiber optic half duplex multi mode 412 m 1350 ft 100BASE FX Fiber optic full duplex multi mode 2 0 km 6 562 ft 100BASE FX Fiber op...

Page 12: ...ty 10 to 95 non condensing Power Supply External Power Input 95 125 vac at 60Hz for LH1500A SC R2 LH1500A ST R2 LH1501A R2 Models 200 250 vac at 50Hz or auto ranging for LH1500AE SC R2 LH1500AE ST R2...

Page 13: ...type twist lock Fiber optic multi mode 100BASE FX Single mode Fiber Port SC type snap in Fiber optic single mode 100BASE FX Packaging Enclosure High strength sheet metal Dimensions 3 0 in H x 3 5 in W...

Page 14: ...n PWR Indicates unit is receiving DC power LINK TP Fiber Steady ON when proper link is established at both ends of the media segment i e when both end s connections are properly made and when power is...

Page 15: ...LH1500AE SC R3 Twisted pair to mm fiber SC ext 230 vac 50Hz power supply LH1500A ST R3 Twisted pair to mm fiber ST ext 115 vac 60Hz power supply LH1500AE ST R3 Twisted pair to mm fiber ST ext 230 vac...

Page 16: ...age and Product Examine the shipping container for obvious damage prior to installing this product notify the carrier of any damage which you believe occurred during shipment or delivery Inspect the c...

Page 17: ...e shipping container Be sure to keep the shipping container should you need to ship the unit at a later date In the event there are items missing or damaged contact your supplier If you need to return...

Page 18: ...s well They offer a compact cost effective way to adapt a pre existing Ethernet cabling configuration as network requirements change Black Box LH1500A Media Converters are designed for quick and easy...

Page 19: ...verters are designed to provide low temperature operation over an extended period to make them some of the most reliable in the industry Their high strength fabricated metal packaging shields against...

Page 20: ...with one fiber ST and one RJ 45 connector for connection to 100BASE FX compliant networks segments An LH1500A ST R2 integrates 100BASE TX and FX networks with fiber ST connectors Twisted Pair 100BASE...

Page 21: ...pped with one fiber SC and one RJ 45 connector for connection to 100BASE FX compliant networks segments Twisted Pair 100BASE TX Fiber SC type LINK LINK PWR Black Box LH1500A Media Converter 100 Mb s U...

Page 22: ...ation auto sensing LH1500s can be used in full duplex fiber segments for distances up to 2Km for the multi mode model and up to 15Km for single mode model Low PDV for Maximum Cable Lengths in Shared S...

Page 23: ...eniently installed in minimal space on horizontal or vertical surfaces Full Complement of LEDs Each LH1500A Media Converter is equipped with a full complement of LEDs to provide network LINK status on...

Page 24: ...e being installed and where full duplex fiber segments of up to 2Km for multi mode or 15Km for single mode are needed to interconnect them with other 100Mb switching hubs in distant wiring closets Alt...

Page 25: ...23 24 1 2 3 4 5 6 7 8 9 10 13 14 15 16 17 18 19 20 21 22 11 12 23 24 T LINK LINK PW R Media Converter 100 Mb s T LINK LINK PWR Media Converter 100 Mb s LH1500A 100 BASE TX wiring segment UP LINK UP L...

Page 26: ...7 s or users via fiber Black Box LH1500A provides connectivity to server LH1500A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 100 BASE TX wiring segment LINK LINK PWR Black Box Media...

Page 27: ...and lightweight design of the Black Box LH1500A Media Converter allows it to be easily installed in most any location A Velcro strip and a set of two metal clips and screws are included either may be...

Page 28: ...erent for full duplex and for half duplex standard Fast Ethernet installations Each of these situations are covered below in a separate section 3 2 1 Segment Distances Full duplex Full duplex ports su...

Page 29: ...onsider the combined overall segment length of both of the attached media types The overall segment length is calculated by adding together the segment lengths on both sides of the Black Box LH1500A M...

Page 30: ...X Y 100 Where X The segment distance on one side of the Black Box LH1500A Media Converter divided by the Standard Maximum Media Distance for that media type x 100 Where Y The segment length on the oth...

Page 31: ...33ft Segment X 1500m 4920ft Connectivity between 100BASE TX and 100BASE FX Ethernet Media In the example figure shown above the length of fiber Segment X is 1500m 4920 ft This is 75 of the maximum all...

Page 32: ...ercentages for all of the cabling lengths in the run must be added together and must not exceed 100 In another instance a Black Box Media Converter is used to connect a single mode fiber 100BASE FX wi...

Page 33: ...te with multiple nodes in a traffic domain When a node attempts to send a packet it may hit another packet passing by i e a collision may occur This is normal and does not cause a problem because the...

Page 34: ...d by means of a repeater or repeaters such that no bridging or switching devices are present between any two nodes in the cluster A Black Box LH1500A has a PDV of about eighty Bit Times 80 BT and this...

Page 35: ...m Fiber Optic 1 000 Shielded TP cable 1 112 Category 5 Cable 1 112 Category 4 Cable 1 140 Category 3 Cable 1 140 Worst case delays taken from IEEE Std 802 3u 1995 actual delays may be less for a part...

Page 36: ...127 Class I Repeater 140 Class II Repeater with any combination of TX and FX ports 92 Class II Repeater with T4 ports 67 Worst case delays taken from IEEE Std 802 3u 1995 To determine whether a prospe...

Page 37: ...ty margin PDV is the Path Delay Value of the worst case path For the network to adhere to IEEE 802 3u standard this value must be less than 512 BT The safety margin is specified in BT and may be a val...

Page 38: ...applications the LH1500A uses about 80 meters of equivalent cable distance to convert from TX media to fiber FX media i e it consumes almost as much of the available PDV as a Class II repeater Since...

Page 39: ...tained that will interconnect two 100Mb hubs where the twisted pair cables to the user nodes are 10 meters in length The solution is 512 total available Bit Times in a collision domain diameter minus...

Page 40: ...s use of LH1500A and fiber in this case did not gain allowable maximum cable distance vs TP cable without the LH1500A Consider a more typical use of Black Box LH1500A in a shared Fast Ethernet segment...

Page 41: ...for two DTEs on each end leaves 412 BTs minus 90 BT for one Class II stackable repeater leaves 322 BTs minus 30 BT for one 30 meter TP cable from hub to user node leaves 292 BTs minus 5 BT for a shor...

Page 42: ...for a description of the LEDs 3 3 1 Connecting Twisted Pair RJ 45 Unshielded or Shielded The following procedure describes how to connect a 100BASE TX twisted pair segment to the RJ 45 port on the Bla...

Page 43: ...is connected properly and is not defective 3 3 2 Connecting Fiber Optic 100BASE FX Type ST and SC The following procedure applies to 100BASE FX applications using the Black Box LH1500A Media Converter...

Page 44: ...h the color coded strand of the cable for this first Transmit to Receive connection 4 Connect the Receive RX port dark colored post on the LH1500A to the Transmit TX port of the remote device Use the...

Page 45: ...Power Budget PT min PR min where PT Transmitter Output Power and PR Receiver Sensitivity Worst case OPB OPB 1dB for LED aging 1dB for insertion loss Worst case distance Worst case OPB in dB Cable Loss...

Page 46: ...5 4 LH1501A 100Mb FX Single mode 25 0 4 1300 9 125 15 31 14 28 17 5 35 Note The use of either multi mode or single mode fiber to operate at 100Mbps speed over long distances i e over approx 400 meters...

Page 47: ...power supply The external power supply unit supplied is one of two types one version AC input power auto ranging 115 vac at 60Hz for LH1500A SC R2 LH1500A ST R2 LH1501A R2 Models The 115 vac version...

Page 48: ...nt or a loss of power occurs in the unit or remote device LINK Fiber port Illuminates GREEN to indicate proper connectivity on the 100BASE FX network segment LINK will turn off in the event connectivi...

Page 49: ...05 for normal twisted pair connection to a user device When set to the DOWN position X the Media Converter is wired with cross over functionality for direct up link to a network hub or concentrator 4...

Page 50: ...for help If you are unsure of any procedure described in this chapter or if the LH1500A Media Converter is not operating as expected do not attempt to repair or alter the unit Contact Black Box for as...

Page 51: ...cal outlet Make sure that the AC power cord is properly plugged into the LH1500A Use the PWR LED to verify that the unit is receiving proper power 4 If the problem is isolated to a network device othe...

Page 52: ...ions when the problem occurs c The components involved in the problem d Any particular application that when used appears to create the problem 2 An accurate list of BLACK BOX product model s involved...

Page 53: ...eed to ship the unit back to Black Box Corporation please follow these instructions 1 Package the unit carefully It is recommended that you use the original container if available Units should be wrap...

Page 54: ...ers Installation and User Guide 08 05 45 3 Black Box Corporation is not responsible for your return shipping charges 4 Ship the package to Black Box Corporation 1000 Park Drive Lawrence PA 15055 Phone...

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