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Black Box LBH110A, AE Bedienungsanleitung

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Inhaltsverzeichnis der Gebrauchsanleitungen

  • Seite 1

    © Copyright 2004. Black Box Corporation. All ri ghts r eserved. 1000 PARK DRIVE • LAW RENCE, PA 15055-1018 • 724- 746-5500 • FAX 724-746-0746 Media Converter Switches September 2004 LBH100A, A E LBH100A, A E-H LBH100A, A E-P LBH110A, A E LBH110A, A E-H LBH110A, A E-P CUSTOMER SUPPORT INFORMATION Order toll-free in the U.S. 24 hours, 7 A.M. M[...]

  • Seite 2

    BLACK BOX ® Media Converter Switches Installation and User Guide i BLACK BOX ® Series Media Converter Switches LBH100-series = 100Mb fiber + 2 10/100 copper ports LBH110-series = 10 Mb fiber + 2 10/100 copper ports Installation and User Guide Trademarks Ethernet is a trademark of Xerox Corporation NEBS is a trademark of Telcordia Technologies UL [...]

  • Seite 3

    BLACK BOX ® Media Converter Switches Installation and User Guide ii Contacting Black Box Corporation Please use these mailing addre ss and phone and fax numbers: Black Box Corporation 1000 Park Drive Pittsburgh, PA 15055 Phone: (724) 746-5500 Fax: (724) 746-0746 E-mail: info@blackbox.co __________________________________________________________[...]

  • Seite 4

    BLACK BOX ® Media Converter Switches Installation and User Guide iii FEDERAL COMMUNICATIONS COMMISSION AND CANADIAN DEPARTMENT OF COMMUNICATIONS RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer?[...]

  • Seite 5

    BLACK BOX ® Media Converter Switches Installation and User Guide iv This digital apparatus does not exceed the Class A lim its for radio noise emission from digital apparatus set out in the Radio Interference Regulation of the Canadian Department of Communications. Le présent appareil numérique n’émet pas de bruits radioélectrique s dépassa[...]

  • Seite 6

    BLACK BOX ® Media Converter Switches Installation and User Guide v 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. . 6. El aparato eléctrico debe ser usado úni cam ente con carritos o pedestales que sean reconnendados por el fabricante. 7.[...]

  • Seite 7

    BLACK BOX ® Media Converter Switches Installation and User Guide vi 12. Precaución debe ser tomada de m al manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal m anera que no sean pisados ni pellizcados por objetos colocados sobre o cont ra ellos, poniendo partic[...]

  • Seite 8

    BLACK BOX ® Media Converter Switches Installation and User Guide vii Certification Notice for Equipment Used in Canada The Canadian Department of Communications label identifies certified equipment. This certification means that the equipment meets certain telecommunications-network protective, operation, and sa fety requirements. The Depa rtment [...]

  • Seite 9

    BLACK BOX ® Media Converter Switches Installation and User Guide viii equipment, or equipment malfunctions, may give the telecommunications comp any cause to request the user to disconnect the equipment. Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines, and internal meta llic[...]

  • Seite 10

    BLACK BOX ® Media Converter Switches Installation and User Guide ix TABLE OF CONTENTS Page 1.0 SPECIFICATIONS ............................................................................... 1 1.1 Technical Sp ecificati ons ..................................................................... 1 2.0 INTRODUCTION .....................................[...]

  • Seite 11

    BLACK BOX ® Media Converter Switches Installation and User Guide v 3.8 Connecting Ethern et Media ............................................................... 45 3.8.1 Connecting Twisted Pair (RJ-45, CAT 3 or CAT 5) ................. 47 3.8.2 Connecting Fiber Optic ST-type , “twist-lock”........................... 48 3.8.3 Connecting Fiber [...]

  • Seite 12

    BLACK BOX ® Media Converter Switches Installation and User Guide v Revisions Rev A 01/05: Corrections on pages 30 & 33 Rev A 10/04: Minor editing correction on power supply options Rev A 09/04: Initial release of this user manual for LBH100-series Media Converter Switches BLACK BOX ® Corporation. reserves the right to change specifications, p[...]

  • Seite 13

    BLACK BOX ® Media Converter Switches Installation and User Guide 1 1.0 SPECIFICATIONS 1.1 Technical Specifications Ports Performance When a port is operating at 100Mbps: Data Rate: 100Mbps When a port is operating at 10 Mbps: Data Rate: 10 Mbps Network Standards 100Mb: Ethernet IEEE 802.3u, 100BASE-TX, 100BASE-FX 10 Mb: Ethernet IEEE 802.3, 10BASE[...]

  • Seite 14

    BLACK BOX ® Media Converter Switches Installation and User Guide 2 Packet buffers mem ory: 128KB, dynamically shared on all domains Latency (not including packet time): 100 to 10 Mbps: 5 µ s 10 to 100Mbps: 15 µ s Path Delay Value : 50 BT on all ports Maximum Ethernet Segment (or Domain ) Lengths 10BASE-T (Unshielded twiste d pair) - 100 m (328 f[...]

  • Seite 15

    BLACK BOX ® Media Converter Switches Installation and User Guide 3 LBH100, LBH110 office: 32 º F to 104 º F (0 º C to 40 º C) LBH100, LBH110: -15 º F to 140 º F (-25 º C to 60 º C) long term per agency tests (UL). -40 º F to 185 º F (-40 º C to 85 º C) Short term per IEC Type tests. LBH100, LBH110: -40 º F to 167 º F (-40 º C to 75 [...]

  • Seite 16

    BLACK BOX ® Media Converter Switches Installation and User Guide 4 Enclosure: Rugged sheet metal (steel). Dimensions of the Switch unit: 3.5 in H x 3.0 in W x 1.0 in D (8.9 cm x 7.6 cm x 2.5 cm) Weight: base unit, all models: 4.6 oz. (130g); Power supply: Office: 5.9 oz (170g) Hardened: 5.8 oz (165g) Extreme: 7.9 oz (225g) Cooling Method : Convect[...]

  • Seite 17

    BLACK BOX ® Media Converter Switches Installation and User Guide 5 voltage (i.e. 9vdc, 12vdc, 24vdc, 48vdc), and suita bly rated output current (i.e. 100mA to 500mA).When connected to a 48 V centralized dc source these products shall be provided with a Listed 5 A DC fuse in the supply circuit. AC POWER SUPPLY ( using an external power adapter): Al[...]

  • Seite 18

    BLACK BOX ® Media Converter Switches Installation and User Guide 6 International models . Factory floor temperature rated. Input: IEC 320 connector on the 100-240vac 47-63Hz external power adapter. Requires a user-supplied power cord. Output:12vdc, 1.25Amps Temperature un-controlled Extreme R atings (-40 to 75°C) North America(-Pd) mod els. Outdo[...]

  • Seite 19

    BLACK BOX ® Media Converter Switches Installation and User Guide 7 Internal DC POWER SUPPLY : built-in ter m i nal bl oc k for +, -, ground along with 12VDC jack 12V DC internal (range of 8.0 to 15V DC),. 24V DC internal (range of 18 to 36V DC),. -48V DC internal (range of 36 to 60V DC), , -, ground. Power Consumpti on : See Section 3.6. Note 1: t[...]

  • Seite 20

    BLACK BOX ® Media Converter Switches Installation and User Guide 8 Port Connectors : Two RJ-45 Ports: support 100BASE-TX and 10BASE-T with auto-cross (MDIX). They are shielded 8-pin female connect ors for shielded (STP) and unshielded (UTP) Cat 3, 4, 5 copper twisted-pair cable. One Fiber optic port: On the LBH110 series, it is 10Base-FL with ST c[...]

  • Seite 21

    BLACK BOX ® Media Converter Switches Installation and User Guide 9 LED Indicators (Dual: front and top) P OWER: Steady ON when power applied 10/100: Steady ON for 100Mbps; OFF for 10 Mbps LK/ACT: Steady ON for LINK (LK) wi t h no t r a ffi c , BLINKING indicates port is transmitting / receiving (Activity). F/H: Steady ON for full-duplex, OFF for h[...]

  • Seite 22

    BLACK BOX ® Media Converter Switches Installation and User Guide 10 Agency Approvals and Standards Compliance : UL Listed (UL 60950), cUL, CE, Emissions meets FCC Part 15 Class A. NEBS L3 and ETSI compliant. H and P models: IEEE P1613 Env. Std for Electric Power Substations P models: NEMA TS-2 and TEES for traffic control equipment P models: desig[...]

  • Seite 23

    BLACK BOX ® Media Converter Switches Installation and User Guide 11 1.2 LBH100 Models (for 100Mb fiber). LBH100A-ff = two 10/100 RJ-45 ports + one 100 Mb “ ff” Fiber por t for office and wiring closet (0 to 40°C) using an external AC power supply. LBH100A-H-ff = Hardened (H), two RJ- 45 + one 100Mb “ff” Fiber port for factor y floor (-25 [...]

  • Seite 24

    BLACK BOX ® Media Converter Switches Installation and User Guide 12 “SST” = 100Base-FX-ST: single-m ode fiber optic with ST type connector, 20km . “SLC”= 100Base-FX-SLC: single-m ode fiber optic with LC type connector, 15km . “MTRJ”= 100Base-FX-MTRJ: multi-m ode fiber optic with MTRJ type connector, 2km . Accessories LE1505-RACK = 19?[...]

  • Seite 25

    BLACK BOX ® Media Converter Switches Installation and User Guide 13 2.0 INTRODUCTION This section describes LBH100- a nd LBH110-series models, including appearance, features and typical applications. 2.1 Inspecting the Package and the Product Examine the shipping container for obvious damage prior to installing this product; notify the carrier imm[...]

  • Seite 26

    BLACK BOX ® Media Converter Switches Installation and User Guide 14 2.2 Product Descri ption Combine a 10 or 100 Mb Fiber Media and a two-port 10/100 copper Switch, and you have the Media Converter Switch, a flex ible edge-of-the-network Ethernet product which function as both a media converter and a switch. Add in fiber port choices for all multi[...]

  • Seite 27

    BLACK BOX ® Media Converter Switches Installation and User Guide 15 a Media Converter might have been used, a Converter Switch offers a better value. The compact package is ideal for network edge in stallations, and is able to be conveniently mounted to suit any application. The LBH100A and LBH100A Series re gular-package units are for office and [...]

  • Seite 28

    BLACK BOX ® Media Converter Switches Installation and User Guide 16 components and are constructed using special thermal techniques and a metal case for heavy duty industrial jobs. In addition to a Ha rdened AC power option and jack, terminals for internal DC power choices at 8 to15V, 24V or -48V DC are included. The ambient temperature rating of [...]

  • Seite 29

    BLACK BOX ® Media Converter Switches Installation and User Guide 17 protected from falling rain. Mounting options include stand-alone panel-mounting, DIN- rail, or rack-mount tray. The LBH110-series provides switching between two 10/100 auto-negotiating copper ports and one 10Mb ST fiber port and the LBH100 series provides switching between two 10[...]

  • Seite 30

    BLACK BOX ® Media Converter Switches Installation and User Guide 18 metal case for convection cooling is featured . Ambient operating tem perature is 0° to 40°C. Storage temperature rating is -40°to 85° C. Metal clips are included for secure panel mounting. Fig 2.2a LBH100A with 100Mb ST connector The LBH100A-H and LBH 110A-H hardened units (a[...]

  • Seite 31

    BLACK BOX ® Media Converter Switches Installation and User Guide 19 Fig 2.2.b LBH100A-H with 100Mb SC connector The LBH100A-P and LBH110A-P series (as shown in Fig. 2.2c) are extreme rated units suitable for temperature un -controlled outdoor applications. Specially designed with extreme-grade extended temperature components, the LB H100P and LBH1[...]

  • Seite 32

    BLACK BOX ® Media Converter Switches Installation and User Guide 20 Fig 2.2c LBH100A-P with 100Mb SC Connector The front side of the unit has two twisted-pair 10/100Mb switch ports and one 10 or 100Mb fiber port. Both the RJ-45 ports of the LBH100A and LBH110A Series Media Converter Switches support auto-cross (MDIX) operati on performing the auto[...]

  • Seite 33

    BLACK BOX ® Media Converter Switches Installation and User Guide 21 Two sets of LEDs to indicating the opera ting status of ports are mounted on the top and front (for extra viewing advantage wh ile rack-mounted). For each port, there are Link and Activity (LK/ACT) LED’s on the t op indicating that the media cables are connected correctly and sh[...]

  • Seite 34

    BLACK BOX ® Media Converter Switches Installation and User Guide 22 2.3 Frame Buffering and Latency The LBH100A and LBH110A Series Medi a Converter Switches are store-and- forward switches. Each frame (or packet) is loaded into the Switch’s m emory and inspected before forwarding can occur. This technique ensures that all forwarded fram es are o[...]

  • Seite 35

    BLACK BOX ® Media Converter Switches Installation and User Guide 23 per port. When the port buffer fills up, dropped packets result.) This dynamic buffer allocation provides the capability for the maximum resources of the LBH100A and LBH110A Series unit to be app lied to all traffic loads, even when the traffic activity is unbalanced across the po[...]

  • Seite 36

    BLACK BOX ® Media Converter Switches Installation and User Guide 24 2.4 Features and Benefits  Full 100Mb or 10 Mb switching serv ices for high performance LANs LBH100A and LBH110A Series Switche s provide Fast Ethernet switching on all ports. They perform high speed filter/forward operations on the traffic, giving each port’s segment a full [...]

  • Seite 37

    BLACK BOX ® Media Converter Switches Installation and User Guide 25  Installation is “Plug and Play”, operation is tran sparent to software The LBH100A and LBH110A Series Switches operate as hardware switches, only forwarding those packets from each domain that are needed on the other domains. Internal addre ss tables are self-learning, ena[...]

  • Seite 38

    BLACK BOX ® Media Converter Switches Installation and User Guide 26  Qualified to use for te mpe r a tur e un-c ontrolled “outdoor” applicati on The LBH100A-P and LBH 110A-P Extreme rated versions of Media Converter Switches have an ambient te mperature rating between –40C to +75C for DC models and qualify for temperat ure un-controlled ?[...]

  • Seite 39

    BLACK BOX ® Media Converter Switches Installation and User Guide 27 2.5 Applications for LBH100A and LBH110A Series Media Converter Switches Enriched with the three tier hardness rating flavors “office”, “ Hardened”, and “Extreme” (outdoor), the multifunctional, multi-media and multi-environmental, LBH100A and LBH110A Series Media Conv[...]

  • Seite 40

    BLACK BOX ® Media Converter Switches Installation and User Guide 28 industry standard fiber connectors, enable easy interfacing with existing cable plant and equipment. The LBH100Ps and LBH110Ps fit very well in high temperature locations experiencing a need to scale the LAN quickly and cost eff ectively. With its half / full duplex switching capa[...]

  • Seite 41

    BLACK BOX ® Media Converter Switches Installation and User Guide 29 Test com puter LE2425 WWW.Garr ettCo m.C om IBM Compatible Media Converter Switches provided a secure dependable, reliable solution for un-controlled temp. environment 62 m and Workstations 100Mb Servers 100 and Workstations 100Mb Servers 100 Router Router 2 m and Workstations 10M[...]

  • Seite 42

    BLACK BOX ® Media Converter Switches Installation and User Guide 30 Example 2: LBH100A-H and LBH110A-H LE2425A WWW.Garr ettCo m.C om and Workstations 100Mb Servers 100 1 2 3 4 5 6 7 8 Tx Rx UPLINK F H = X 2SW UPLINK 3 4 5 6 7 8 1SW Person al Hub PORTS 1S W 2SW 3 4 5 6 7 8 Link/Act Speed F/H Power Error GARRETT 12V, 1.5Amps Magnum DS80C Dual Speed [...]

  • Seite 43

    BLACK BOX ® Media Converter Switches Installation and User Guide 31 In this application, where in expanding an industrial network environment, the new PLC units are deployed on an existing network and each needs one (or two for redundancy) Ethernet ports to carry status and control data to the control center the hardened version of LBH100A-H or LB[...]

  • Seite 44

    BLACK BOX ® Media Converter Switches Installation and User Guide 32 Example 3: LBH100A-P or LBH110A-P Router Router and Workstations 100Mb Server s 100 1 2 3 4 5 6 7 8 Tx Rx UPLINK F H = X 2SW UPLINK 3 4 5 6 7 8 1SW Personal Hub PORTS 1S W 2SW 3 4 5 6 7 8 Link/Act Speed F/H Power Error GARRETT 12V, 1.5Amps Magnum DS80C Dual Speed and Workstations [...]

  • Seite 45

    BLACK BOX ® Media Converter Switches Installation and User Guide 33 In this example, the LBH100A -P or LBH110A-P Series extr em e Media Converter Switches are deployed to serve as a secure corporat e or transportation surveillance system. CCTV cameras may be spread out over many miles in temperature un-controlled locations and with pan, tilt and z[...]

  • Seite 46

    BLACK BOX ® Media Converter Switches Installation and User Guide 34 3.0 INSTALLATION This section describes the installati on of the LBH100A and LBH110A Series Media Converter Switches, including location, mountings, power supply options and media connection. 3.1 Locating the Converter Switch Un it The compact and lightweight design of the LBH100A[...]

  • Seite 47

    BLACK BOX ® Media Converter Switches Installation and User Guide 35 Installation of the LBH100A and LBH110A Series Media Converter Switches is a simple procedure. The installation location is dependent upon the physical layout of the Ethernet network and associated cabling. Make su re the unit is installed in a location that is easily accessible t[...]

  • Seite 48

    BLACK BOX ® Media Converter Switches Installation and User Guide 36 mounted with the DC power jack in the back, with the fiber and the RJ-45 connectors in the front. Any mix of the Media Converter Switc hes and/or Media Converters may be placed on a tray, up to a maximum of 16 units. (T he mounting spaces of the LE1505-RACK are specific to the pro[...]

  • Seite 49

    BLACK BOX ® Media Converter Switches Installation and User Guide 37 3.3 LH1505P-RACK for Rack Mounting Media Converter Switches The LH1505P -RACK is another option ava ilable for Rack Mounting the mix-match of LBH100A and LBH110A Series Media Conve rter Switches together in 19” rack-mount tray. The LH1505P-RACK model comes with bu ilt-in common [...]

  • Seite 50

    BLACK BOX ® Media Converter Switches Installation and User Guide 38 The side-view picture shown here is an example of an installation of the model LH1505P- RACK, 19” rack-mount tray, holding a few 10 and 100Mbps Media Converter Switches, each with their power input plugged into the built-in common AC power supply in the rear area of the tray. (P[...]

  • Seite 51

    BLACK BOX ® Media Converter Switches Installation and User Guide 39 3.4 DIN-Rail mounting option The LBH100A and LBH100A Series Media Converter Switches, designed for use in “Factory Floor” Industrial Ethernet environments, are also available for DIN- Rail mounting in an enclosure having DIN Rails. An LBH100 is shown alongside the DIN-Rail-MC2[...]

  • Seite 52

    BLACK BOX ® Media Converter Switches Installation and User Guide 40 3.5 Power Requirements, Pow er Supply Ty pes for LBH100A and LBH110A Series LBH100A and LBH110A Series Switches are power-efficient and can work with an external AC power supply. LBH100A and LBH110A Seri es require a nominal 12VDC input version. The extended temperature (H and P) [...]

  • Seite 53

    BLACK BOX ® Media Converter Switches Installation and User Guide 41 12VDC 24VDC -48VDC The Direct DC (Internal) 12V DC (8 – 15V DC ) has a built-in terminal block for +, -, ground. The 9V DC jack is also pres ent. Detail information about the 12 VDC, the 24V DC and the –48V DC is provided in th e Technical Specifications Section 1.1. The vario[...]

  • Seite 54

    BLACK BOX ® Media Converter Switches Installation and User Guide 42 3.6 Power i ng the LBH-se r ies (DC internal) with 12V, 24V or –48VDC power input Many models of the LBH100-Series MC’s are equipped with an internal DC power supply, and have built-in screw terminals for secure attachment of the power leads. Three models support a range of po[...]

  • Seite 55

    BLACK BOX ® Media Converter Switches Installation and User Guide 43 DC Power Terminals : “+”, “-”, gnd GND : Terminal for “earth” or ground wire connection to the LBH100 chassis Input Voltage : 8 - 15V DC (12V DC) 18 – 36V DC (24V DC) 36 – 60V DC (-48V DC) Input current : 0.8 amp.(12V DC) 0.4 amp max.(24V DC) 0.2 amp max.(-48V DC) [...]

  • Seite 56

    BLACK BOX ® Media Converter Switches Installation and User Guide 44 3.7 LBH100H and P Series , DC-powered, -48VDC, 24VDC and 12VDC Installation This section describes the proper connection of the - 48VDC leads (or 24VDC, 12VDC leads) to the DC pow er terminal block on the LBH100 hardened media converter (as shown in Figure ) . The DC terminal bloc[...]

  • Seite 57

    BLACK BOX ® Media Converter Switches Installation and User Guide 45 The connection procedure is straightforward. Simply insert the DC leads to the LBH100H’s power terminals, positive (+) and negative (-) screws. The use of Ground (GND) optional; it connects to the LBH100H cha ssis. Ensure that each lead is securely tightened from the top, as sho[...]

  • Seite 58

    BLACK BOX ® Media Converter Switches Installation and User Guide 46 TX connections. When the ports are used as 10BASE-T ports, CAT 3 may be used. In either case, the maximum distance for unshielded twisted pair cabling is 100 meters (328 ft). For fiber port 10BASE-FL or 100BASE-FX multi-mode, 50/125 or 62.5/125 microns cabling can be used, whereas[...]

  • Seite 59

    BLACK BOX ® Media Converter Switches Installation and User Guide 47 NOTE : It is recommended that high quality CAT. 5 cables (which work for both 10 Mbps and 100Mbps) be used whenever possible in order to provide flexibility in a mixed-speed network, since P80-series s w itch ports are auto-sensing for either 10 and 100Mbps. Note that the auto-cro[...]

  • Seite 60

    BLACK BOX ® Media Converter Switches Installation and User Guide 48 4. For Port # 1 or 1SW, if the LINK LED is not illuminated, move the switch which has a cross-over or up-link for linking to another hub or Switch. 3.8.2 Connecting Fiber Optic ST-type , “twist-lock” The following procedure applies to installations using ST-type fiber connecto[...]

  • Seite 61

    BLACK BOX ® Media Converter Switches Installation and User Guide 49 LINK is not lit after cable connection, the normal cause is improper cable polarity. Swap the fiber cables at the fiber c onnector to remedy this situation. 3.8.3 Connecting Fiber Optic SC-type , "Snap-In" The following procedure applies to installations using SC-type fi[...]

  • Seite 62

    BLACK BOX ® Media Converter Switches Installation and User Guide 50 3.8.5 Power Budget Calculations for LBH100A and LB H110A Series, Fiber Media Receiver Sensitivity and Transmitter Power are the parameters necessary to compute the power budget. To calculate th e power budget of different fiber media installations using products, the fo llowing eq[...]

  • Seite 63

    BLACK BOX ® Media Converter Switches Installation and User Guide 51 LBH110- MST 10 Mb FL Multi- mode 2 (2) 850 62.5/125 100/140 50/125 -15.0 -9.5 -19.5 -31 -31 -31 14 19.5 9.5 5 5.9 3.4 17 23.5 13.5 6 7 4.8 LBH110- single-mode 10 Mb FL Single- mode 10 (5) 1300 9/125 -30 -39 7 14 13 26 Fiber Port Module Speed, Std. Mode Std. km fdx (hdx) Wavel engt[...]

  • Seite 64

    BLACK BOX ® Media Converter Switches Installation and User Guide 52 * Not e: The use of either multi-mode or singl e-mode fiber to operate at 100Mbps speed over long distances (i.e., over approx. 400 meters) can be achieved only if the following factors are both applied: • The 100Mb fiber segment must operate in full-duplex (FDX) mode, and • T[...]

  • Seite 65

    BLACK BOX ® Media Converter Switches Installation and User Guide 53 4.0 OPERATION 4.1 Dual-Speed Functionality, and Switching The LBH100A and LBH110A Series Medi a Converter Switches provide four switched ports (three ports in the front and one on the rear). The architecture supports a dual speed switching environment, with standard auto-negotiati[...]

  • Seite 66

    BLACK BOX ® Media Converter Switches Installation and User Guide 54 Switching, Filtering and Forwarding Each time a packet arrives on one of the switched ports, the decision is taken to either filter or to forward the packet. P ackets whose source and destination addresses on the same port segment will be filtered, constr aining them to one port a[...]

  • Seite 67

    BLACK BOX ® Media Converter Switches Installation and User Guide 55 Switching, Address Learning The LBH100A and LBH110A Se ries units have address table capacity of 2K node addresses, and are suitable for use in large networks. They are self-learning, so that as nodes are added or removed or moved from one segment to another, the LBH100- and LBH11[...]

  • Seite 68

    BLACK BOX ® Media Converter Switches Installation and User Guide 56 10 or 100 Mbps speed and F/H duplex mode, and the device at the other end of the cable should similarly advertise / respond and both si des will agree to the speed and mode being used. Depending upon the device connected, this will result in agreement to operate at either 10 Mbps [...]

  • Seite 69

    BLACK BOX ® Media Converter Switches Installation and User Guide 57 LK/ ACT Steady ON for LINK w ith no traffic, blinking for activity per port. LINK will turn off in the event connectivity is lost between the ends of the twisted pair segment or a loss of power occurs in the unit or remote de vice. The Link ports are also repres ented by the LEDs [...]

  • Seite 70

    BLACK BOX ® Media Converter Switches Installation and User Guide 58 5.0 TROUBLESHOOTING All BLACK BOX ® Ethernet products are designed to provide reliability and consistently high performance in all network environments. The installation of LBH100A and LBH110A Series 10/100 Mb/s Switches is a straightforward procedure (see INSTALLATION, Section 3[...]

  • Seite 71

    BLACK BOX ® Media Converter Switches Installation and User Guide 59 5.1 Before Calling for Assistance 1. If difficulty is encountered when installing or operating the unit, refer back to the Installation Section of the appli cable chapter of this manual. Also check to make sure that the vari ous components of the network are interoperable. 2. Chec[...]

  • Seite 72

    BLACK BOX ® Media Converter Switches Installation and User Guide 60 4. If the problem is isolated to a netw ork device other than the LBH100 and LBH110 Series 10/100 Mb/s switch product, it is recommended that the problem device is replaced w ith a known good device. Verify whether or not the problem is corrected. If not, go to Step 5 below. If th[...]

  • Seite 73

    BLACK BOX ® Media Converter Switches Installation and User Guide 61 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. Situations when the problem occurs; c. The components involved in the pr[...]

  • Seite 74

    BLACK BOX ® Media Converter Switches Installation and User Guide 62 3. It is useful to include other networ k equipment models and related hardware, including Convenient computers, worksta tions, terminals and printers; plus, the various network media types being used. 4. A record of changes that have been made to your network configuration prior [...]

  • Seite 75

    BLACK BOX ® Media Converter Switches Installation and User Guide 63 CAUTION : Do not pack th e unit in Styrofoam "popcorn " type packing material. This material may cause electro-static sh ock damage to the unit. 2. Clearly mark the Return Materi al Authorization (RMA) number on the outside of the shipping container. 3. Black Box Corpora[...]