Gebruiksaanwijzing /service van het product LBH1500A van de fabrikant Black Box
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© Copyright 2005. Black Box Corporation. All r ights reserved. 1000 PARK DRIVE • LAW RENCE, PA 15055-1018 • 724- 746-5500 • FAX 724-746-0746 July 2005 LBH1500A-R3 Black Box LH1500 LBH1500AE-R3 .
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) Black Box LH1500 Media Converters Installation and User Guide Trademarks UL is a registered trademark of Underwriters Laboratori.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) Contacting Black Box Please use the mailing address and phone and fax numbers listed below: Black Box Corporation P.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) FCC STATEMENT FEDERAL COMMUNICATIONS COMMISSION & CANADIAN DEPARTMENT OF COMMUNICATIONS RADIO FREQUENCY INTERFERENCE STATEME.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio Interferen ce Regulation of the Canadian Department of Communications.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 4. Todas las instrucciones de oper ación y uso deben ser seguidas. 5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cer ca de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 13. Los cables de la fuente de poder deben ser gui ados de tal m anera que no sean pisados ni pellizcados por objetos colocados sobre o cont ra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) TABLE OF CONTENTS Page 1.0 SPECIFICATIONS .................................................................................... 1 1.1. Technical Speci fications *..................
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) TABLE OF CONTENTS (CONTINUED) Page 3.3.3 Power Budget Calculati ons for Fiber media * .................................. 37 4.0 OPERATION .........................................
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 1 1.0 SPECIFICATIONS 1.1. Technical Specifications 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.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 2 Number of Media Converters in series: Experience shows that up to three units can be used in series between repeaters. For 4 or more in series , noise build-up will typically preclude proper operation.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 3 Operating Environment: Am bient Temperature: 32 º F to 122 º F (0 º C to 50 º C) Storage Temperature: -20 º C to 60 º C .
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 4 Fiber Port, SC-type (snap-in): Fiber optic multi-mode, 100BASE-FX Fiber Port, ST-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.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 5 LED Indicators for the Black Box LH1500’s and LH1501’s: LED TX port FX port Description 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.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 1.2 Model Number Description LH1500A-SC-R3 Twisted pair to mm fiber SC, ext. 115 vac, 60Hz power supply 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.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 7 2.0 INTRODUCTION This section describes the Black Box LH1500’s and LH1501’s Media Converters, including appearance, features and possible applications.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 1 Set of two (2) metal mounting clips with screws 1 Velcro ® Tape section, approximately 3 inches in length Remove the Black Box LH1500 Media C onverter from the shipping container.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 9 2.2 Product Descr iption Black Box LH1500 Media Converters offer a convenient and graceful way to convert and transmit data among twisted pair and fiber network cabling environments.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 10 nearby AC wall socket or power strip. Each converter features a full set of LEDs that convey essential diagnostic and status informa tion. See Section 4.1, LED Indicators, for specific LED function information.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) The Black Box LH1500A-ST is equipped 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, w ith fiber ST connectors.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) The Black Box LH1500A-SC is equipped with one fiber-SC and one RJ-45 connector for connection to 100BASE- FX compliant networks segments.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 13 2.3 Features and Benefits Reduces Network Costs Black Box LH1500 Media Converters offer an ideal solution to quickly and inexpensively connect Twisted-Pa ir TX with Fiber FX segments.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 14 Small, Compact, Lightweight Design Featuring a compact and lightweight metal case with an external power supply, Black Box LH1500 Media Converters can be conveniently installed in minimal space, on horizontal or vertical surfaces .
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 15 2.4 Applications The primary function of Black Box LH 1500 Media Converter is to permit two different media types to coexist within th e same network by allowing data to be transmitted and received between different media types.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 16 ed ed 100Mb hu bs via fiber. 00 Two B lack Box L H 1500s provide conne ctivity for switch ch LH15 1 2 3 4 5 6 7 8 9 10 11 12 .
Black Box LH1500 Media C onverters Installation and User Gui de (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 is used in shared half-duplex applications. 17 s or users via fiber.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 3.0 INSTALLATION This section describes the installation of the Black Box LH1500 Media Converters, including location, segment di stance calculation and media connection.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 19 Make sure the unit is installed in a locati on that is easily accessible to an AC power outlet or power strip, and where convection cooling is not inhibited.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 20 limitations are not a factor. Specifically, fiber segments can be up to 2Km for m ulti- mode and up to 15Km for single mode. The Black Box LH1500, with full-duplex ope ration as a standard feature, can be used in these applicati ons.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 21 Media Distance Formula for Black Box LH1500’s, full-duplex : X% + Y% < 100% Where X = The segment distance on one side o.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) Twisted Pair (100BASE-TX) Fiber Multimode (100BASE-FX) L I N K LINK PWR Bl ack Box M ed ia C onve rter 100 Mb/s UP LI NK Segment Y 10m (33ft) Segment X 1500m (4920ft ) Connectivity between 100BASE-TX and 100BASE-FX Ethernet Media.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 23 100BASE-TX full-duplex twisted-pair media (100 m) [10/100 x 100% = 10%]. The total of the two percentages (75% + 10%) is 85%, which is allowable.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 24 This is 12% of the maximum allowable distance for 100BASE-TX full-duplex twisted- pair media (100 m) [12/100 x 100% = 12%]. The total of the two percentages (57% + 12%) is 69%, which is allowable.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 25 Collision Domain A collision domain is defined in the IEEE 802.3u standard as a cluster of network devices that, regardless of topology, must be less than 512 BT (Bit Times) of signal delay (PDV or Path Delay Value) in diameter between any two nodes.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 26 Collision Domain Diameter must be less than 512 BT (Bit Times). Bit Times are related to media type as shown in Table 3.2.2a. Table 3.2.2a: Worst case round -trip delay for Fast Ethernet media* Media Type Round-trip delay in Bit Time per Meter (BT/m) Fiber Optic 1.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 27 Table 3.2.2b: Worst case roun d-trip delay for Fast Ethernet d evice components* Component Round-trip delay in Bit Times (BT).
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 28 PDV = (sum of cabling delays) + (sum of repeater & media converter delays) + (DTE pair delays) + (safety margin) PDV is the Path Delay Value of the wors t case path. For the network to adhere to IEEE 802.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 29 “Rules-of-thumb” Collision Domain Calculations Rules-of-thumb, while inexact, may be helpful in planning network topology.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 30 the use of fiber media, but not to gain distance by facilitating use of fiber media instead of twisted pair.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 31 which indicates a fiber cable length of about 40 meters . It is obvious that using twisted pair wi ring to connect the hubs w.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 32 The solution is : 512 = total available Bit Times in a collision domain diameter, minus 100 BT for two DTEs on each end leave.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 33 3.3 Connecting Ethernet Media Connecting Ethernet media to the Black Box LH1500 Media Converter is very simple and straightforward. Using a properl y terminated media segment, simply attach the cable end to the appropriate connector.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 34 3. Use the LINK LED to ensure proper conn ectivity by noting that the LED will be illuminated when the unit is powered a nd proper connection is established. If the LINK LED is not illuminated, change the setting of the up-link switch (See Section 4.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 35 Note : One strand of the duplex fiber optic cable is coded using color bands at regular intervals; you must use the color-coded strand on the associated ports at each e nd of the fiber optic segment.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 36 3.4.1 Power Budget Calculations for Fiber Media Receiver Sensitivity and Transmitter Power are the parameters necessary to compute the power budget.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 37 Fiber Port Module Speed, Std. Mode Std. km fdx (hdx) Wave- length nm Cable Size µ m X’mitr Output P T , dB R’cvr Sens. P R , dB Worst OPB, dB Worst* distance Km, fdx typical OPB, dB typical* distance Km, fdx LH1500A MST, MSC 100Mb FX Multi- mode 2 (0.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 38 4.0 OPERATION This section describes the operation of the Black Box LH1500 Media Converters including power supply requireme nts, up-link switch functionality, and a description of all LEDs.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) 39 4.2 Front Panel LEDs LED Description PWR Illuminates GREEN to indicate the unit is receiving DC power. LINK (RJ-45 port) Illuminates GREEN, to indicate proper connectivity on the 100BASE-TX network segmen t.
Black Box LH1500 Media C onverters Installation and User Gui de (08/05) for normal twisted pair connection to a us er device. When set to the DOWN position (X), the Media Converter is wired with cr oss-over functionality for direct up-link to a network hub or concentrator.
Black Box LH1500 Media C onverters In stallation and User Guide (08/05) 41 5.0 TROUBLESHOOTING If problems should develop during in stallation or operation, follow the suggestions below prior to calling Techni cal Support for help.
Black Box LH1500 Media C onverters In stallation and User Guide (08/05) 42 2. Check the cables and connectors to make sure that they have been properly connected and the cables/wires have not b een crimped or in some way impaired during installation. 3.
Black Box LH1500 Media C onverters In stallation and User Guide (08/05) 43 5.2 When Calling for Assistance Please be prepared to provide the following information. 1. A complete description of the problem, including the following points: a. The nature and duration of the problem; b.
Black Box LH1500 Media C onverters In stallation and User Guide (08/05) 44 4. A record of changes that have been made to y our network configuration prior to the occurrence of the problem. Any changes to system administration procedures should all be noted in this record.
Black Box LH1500 Media C onverters In stallation and User Guide (08/05) 45 3. Black Box Corporation is not respons ible for your return shipping charges.
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