Black Box Modular Switches Installation and User Guide (8/99) April 1999 LE14XXA Modular Switches Customer Support Information Call our Technical Support Specialists to discuss your application. For 24-hour technical support: Call (724) 746-5500 or Fax: (724) 746-0746 To order: Call (724) 746-5500 7:00 A.M. to 8:00 P.M. EST Mail order: Black Box Corporation.
Black Box Modular Switches Installation and User Guide (8/99) Black Box Modular Switches Installation and User Guide Trademarks UL is a registered trademark of Underwriters Laboratories Important: The LE14XXA Modular Switches contain no user-serviceable parts. Attempted service by unauthorized personnel shall render any and all warranties null and void. If problems are experienced with an LE14XXA, consult Section 6, Troubleshooting, of this User Guide.
Black Box Modular Switches Installation and User Guide (8/99) FCC STATEMENT 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’s instructions, may cause interference to radio communication.
Black Box Modular Switches Installation and User Guide (8/99) NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberan ser guardadas para referencia futura. 3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas. 4.
Black Box Modular Switches TABLE OF CONTENTS Installation and User Guide (8/99) PAGE 1. SPECIFICATIONS.........................................................................................................1 1.1 Technical Specifications........................................................................................1 1.2 Model Information................................................................................................4 2. INTRODUCTION ...............................................
Black Box Modular Switches Installation and User Guide (8/99) 5.2 Product Description ...........................................................................................34 5.2.1 LE1428C, 100Mb multi-mode FX-ST, “twist lock” connector ...............35 5.2.1a LE1424C, 10 Mb multi-mode FL-ST, “twist-lock” connector...............35 5.2.2 LE1419C, 100Mb multi-mode FX-SC, “snap-in” connector. .................36 5.2.3 LE1421C, 100Mb single-mode FX-SC, “snap-in” connector...................36 5.2.
Black Box Modular Switch 1. SPECIFICATIONS 1.
Black Box Modular Switches Installation and User Guide (8/99) Fiber Port, MTRJ-type (plug-in):Fiber optic multi-mode, 100BASE-FX Fiber Port, VF-45 type (plug-in): Fiber optic multi-mode, 100BASE-FX Fiber Port, ST-type (twist-lock): Fiber optic multi-mode, 10ASE-FL Fiber Single-mode connector types: Fiber Port, SC-type: Fiber optic single-mode, 100BASE-FX Manual switch-selections and jumpers Up-link Push-button: Crossover sw for one RJ-45 port per LE1425C Fiber default: Full-duplex (Internal jumpers may
Black Box Modular Switches Installation and User Guide (8/99) For Dual Source and Redundant DC supply options, see Appendices For optional 23” Telco rack-mount brackets, order Model # RMB-23W Agency Approvals UL listed (UL1950), cUL, CE Emissions meet FCC Part 15 Class A Warranty Three years, return to factory 3 Made in USA
Black Box Modular Switches 1.2 Installation and User Guide (8/99) Model Information Black Box Modular Switches MODEL DESCRIPTION LE1401A 8-port 10/100 Switch, holds up to two 4-port Modules with 4 switched ports each. Shelf or table-top mounting. For mixed-media flexibility, combinations of RJ-45 and various fiber port connector types, modes, and speeds can be configured.
Black Box Modular Switches Installation and User Guide (8/99) 2. Introduction 2.1 Inspecting the Package 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 contents of this package for any signs of damage and ensure that the items listed below are included. This package should contain: 1 LE1401A, LE1408A, LE1416A Modular Switches 1 AC Power Cord (U.S.
Black Box Modular Switches 2.2 Installation and User Guide (8/99) Product Description , 8-port and 16-port Modular Switches Black Box LE14XXA series Modular Switches boost the performance of large Ethernet LANs, and have the flexibility of both fiber and twisted-pair switched ports. Their “mixedmedia” capability provides for a variety of configurations including various types of fiber port connectors and modes, as well as allowing a mix of 10/100Mb RJ-45 (copper) ports in the same unit.
Black Box Modular Switches Installation and User Guide (8/99) Switches with two or four 4-port slots in the front, i.e., with a capacity of 8 or 16 switched ports. The LE1408A and LE1416A rack-mount units are typically used in larger network wiring PWR Black Black Box Box LE1401A LE1401A ModularSwitches ACT FDX/HDX LK 1 2 3 4 1 2 Switch 3 Fiber 4 x centers. LK 1 2 3 Figure 2.2.
Black Box Modular Switches Installation and User Guide (8/99) 2.2.2 4-port modules, 100Mb fiber FDX/HDX 1 2 3 LK 4 ACT FDX/HDX 1 2 3 4 1 2 3 4 1 2 3 LK 1 2 3 4 2 3 4 ACT VF45-Small Form Factor ST-Type FDX/HDX 1 LK FDX/HDX 1 LK 2 3 4 1 2 3 4 4 ACT ACT MTRJ-Small Form Factor SC-Type Fig.2.2.2 Fiber 4-Port Modules, LE1420C, LE1419C LE1423C LE1422C In a fiber 4-port module, all of the fiber ports are of the same speed, the same multi- or single-mode, and the same connector type.
Black Box Modular Switches 2.2.4 Installation and User Guide (8/99) 4-Port Module, RJ-45 (copper) The Black Box LE14XXA- LK 1 2 3 4 ACT LE1425C, provides four 10/100Mb x Series copper port module, model 100/10 FDX/HDX switched. RJ-45 ports. The 10/100Mb switched ports are independently N-way auto-negotiating LE1425C for operation at 10 or 100Mb speed in full- or half-duplex mode (as a default setting).
Black Box Modular Switches Installation and User Guide (8/99) The RJ-45 ports run at 10/100Mbps with N-way auto-negotiation capability, whereas the fiber port runs at 100Mbps with half- or full-duplex capability manually selected. The default condition is full-duplex. Internal jumpers settings allow technicians to set the 100Mb fiber port to half-duplex mode. (See Section 3.4).
Black Box Modular Switches Installation and User Guide (8/99) LE14XXA-Series Switches are constantly adapting internally to provide maximum network performance with the least dropped packets. When the Switch detects that its free buffer queue space is low, the Switch sends industry standard (full-duplex only) PAUSE packets out to the devices sending packets to cause “flow control”.
Black Box Modular Switches 2.3 Installation and User Guide (8/99) Features and Benefits n 100Mb switching services for large, high performance Ethernet LANs LE14XXA-Series Switches provide Fast Ethernet switching on all ports. They perform high speed filter/forward operations on the traffic, giving each port’s segment a full 100Mb (or 10 Mb) of bandwidth.
Black Box Modular Switches .2.4 Installation and User Guide (8/99) Applications Black Box LE14XXA-Series Modular Switches offer high performance and flexibility, and are easily used in a variety of applications including client/server computing, performance upgrades of departmental networks, and collapsed backbone applications. The Dual-Speed characteristic of the LE14XXA-Series Switches enables them to inter-connect a series of subnets (one subnet per LE14XXA-Series Switch) in a LAN traffic center.
Black Box Modular Switches Example 2 : 8-port LE1408A Installation and User Guide (8/99) In another application, a Switch is needed to provide a Fast Ethernet backbone. The backbone consists of four high-speed LAN segments, each operating over 100MB full-duplex fiber lines.
Black Box Modular Switches Installation and User Guide (8/99) Example 3 : 16-port LE1416A In another situation similar to Example 2 above, a larger central Switch is needed to provide for a 6-segment 100Mb fiber Fast Ethernet backbone, and switched copper support for 4 high speed local servers. In addition, the router and two dual-speed hubs need switched copper ports. The total is 14 ports, 6 fiber and 8 copper.
Black Box Modular Switches 3.0 Installation and User Guide (8/99) Installation Before installing the equipment, it is necessary to take the following precautions: 1.) If the equipment is mounted in an enclosed or multiple rack assembly, the environmental temperature around the equipment must be less than or equal to 50 0C. 2.) If the equipment is mounted in an enclosed or multiple rack assembly, adequate air flow must be maintained for proper and safe operation. 3.
Black Box Modular Switches 3.2 Installation and User Guide (8/99) Connecting Ethernet Media The Black-Box LE14XXA-Series Fiber Switches are specifically designed to support all standard Ethernet media types within a single Switch unit. This is accomplished by using a family of 4-port Modules (4PMs) which can be individually selected and configured per-port. See Section 2.4 for a description of the 4PMs. The various media types supported along with the corresponding IEEE 802.3 and 802.
Black Box Modular Switches 3.2.2 Installation and User Guide (8/99) Connecting Fiber Optic S C-type, "Snap-In" The following procedure applies to installations using a 4PM with SC-type fiber connectors, i.e., using LE1419C, LE1421C single-mode. When connecting fiber media to SC connectors, simply snap on the two square male connectors into the SC female jacks of the 4PM until it clicks and secures. 3.2.
Black Box Modular Switches 1. 2. 3. Installation and User Guide (8/99) Using standard twisted pair media, insert either end of the cable with an RJ-45 plug into the RJ-45 connector of the port. Note that, even though the connector is shielded, either unshielded or shielded cables and wiring may be used.
Black Box Modular Switches Installation and User Guide (8/99) view and easy to read. Rack-mount installation requires special rack-mounted brackets and screws (included with each LE1408A and LE1416A unit). The brackets attach to the front sides of the Switch, which is then fastened into a standard 19” rack. 3.
Black Box Modular Switches Installation and User Guide (8/99) Therefore, the default setting of auto-negotiation (copper ports) is generally desirable because it is widely used and allows for the connection of various devices without reconfiguration.
Black Box Modular Switches Installation and User Guide (8/99) fixed, even if the attached device may or may not support full-duplex. This is desirable when there are unknown devices presently or potentially connected, which will not operate correctly with full-duplex. Examples include hubs which support only half-duplex by default.
Black Box Modular Switches Installation and User Guide (8/99) Series Combo- 4ports to be fixed, even if the attached device may or may not support fullduplex. This is desirable when there are unknown devices presently or potentially connected, which will not operate correctly with full-duplex. Examples include hubs that support only half duplex by default.
Black Box Modular Switches Installation and User Guide (8/99) Figure 3.7 10Mbps Fiber ports internal jumper settings. Note: Be certain that the main power is disconnected before opening the unit or changing any internal jumper settings Therefore, the default setting of half-duplex ( fiber ports) is generally desirable because it is widely used and allows for the connection of various devices without re-configuration.(where the connected device is half duplex and does not support full-duplex i.e.
Black Box Modular Switches Installation and User Guide (8/99) See the Appendices of this manual for more details. Use an RFQ for other variations.
Black Box Modular Switches 3.9 Installation and User Guide (8/99) 4 Port Module (4PM) Installation The LE14XXA-Series Modular Switches are normally received from the factory with all required 4PM modules installed. There may be situations where 4PM cards need to be added or replaced. In cases where additional 4PM cards are needed, the face plate for an available frontmounted slot must be removed. The following procedure describes this operation. 3.9.
Black Box Modular Switches Installation and User Guide (8/99) Looking down into the LE14XXA-Series unit, notice that there are individual 4PM connector sockets along with two stand-offs for each 4PM card position. There are four 4PM slots located on the front of the LE1416Amodel, whereas LE1401A and LE1408A has two 4PM slots in the front. (See Figure 3.9.1b).
Black Box Modular Switches 3.9.2 Installation and User Guide (8/99) Installing 4PM Cards in the LE14XXA-Series Up to four front-mounted 4PM cards may be installed in one LE1416A Fiber Hub unit. Follow these steps to install a 4PM. Step 1. Remove top chassis cover. See procedure in Section 3.9.1 above. Step 2. Screw down tightly the two 7/16 stand-offs on the top of pre installed stand-offs from the factory. Step 3.
Black Box Modular Switches Installation and User Guide (8/99) 4PM CARDS Figure 3.9.2a: J1 J2 J3 Printed Circuit J4 card Inserting TOP 4PM Cards into a Magnum QS5116 Fiber Switch 1 GARRETT LE1416A NOTE: All 4PM slots need not be filled in order for the LE14XXA-Series unit to be operational. When leaving 4PM slots empty, always use a face plate ( 4PM-FP) to cover the slot opening in the front panel.
Black Box Modular Switches Installation and User Guide (8/99) On the bottom-front of the unit there are two retaining screws for each 4PM card and face plate slot. These screws are used to secure a 4PM card in position (see Figure 3.9.3a). Remove the front screws first and then screw mounted on the rear-top of the 4PM to be removed.
Black Box Modular Switches 4.0 Installation and User Guide (8/99) OPERATION This chapter describes the functions and operation of the LE14XXA-Series. 4.1 Switching Functionality A LE14XXA-Series provides switched connectivity at Ethernet wire-speed among all of its ports. The LE14XXA-Series supports10/100Mbs for copper media and 10 or 100Mb separate traffic domain for fiber port to maximize bandwidth utilization and network performance.
Black Box Modular Switches Installation and User Guide (8/99) nodes are added or removed or moved from one segment to another, the 4-Port Switch automatically keeps up with node locations. An address-aging algorithm causes least-used addresses to fall out in favor of new frequently-used addresses. To reset the address buffer, cycle power down-and-up. 4.2 Status LEDs For all LE14XXA-Series models : PWR LK ACT F/H 100/10 4.3 : : : : Power LED, ON when AC power is applied to the unit.
Black Box Modular Switches Installation and User Guide (8/99) One frequently-used application for the 4-Port-Switch copper ports is to connect one of them using a fiber media converter to another Switch in the network backbone, or to some other remote 100Mb device. In this case, it is desirable to operate the fiber link at 100Mb speed, and at either half- or full duplex mode depending on the capabilities of the remote device.
Black Box Modular Switches • Installation and User Guide (8/99) NOTE – some NIC cards only auto-negotiate when the computer system that they are in is powered up. These are exceptions to the “negotiate at LINK – enabled” rule above, but may be occasionally encountered. When operating in 100Mb half-duplex mode, cable distances and hop-counts may be limited within that collision domain. The Path Delay Value (PDV) bit-times must account for all devices and cable lengths within that domain.
Black Box Modular Switches Installation and User Guide (8/99) reduce the buffer space used. When the available free-buffer queue increases, the Switch will send a “RESUME" packet to indicate the transmitter to start sending the packets. Of course, the transmitting device must also support the 802.3x flow control standard in order to communicate properly during normal operation. Note: When in Half-Duplex mode, the Modular-switch implements a backpressure algorithm on 10/100 Mb ports for flow control.
Black Box Modular Switches Installation and User Guide (8/99) 2 LE1422C 100Mb Multi1300 62.5/12 FX mode (0.4) 5 -14 -31 15 5 16 5.7 * Note: The use of either multi-mode or single-mode fiber to operate at 100Mbps speed over long distances (i.e., in excess of 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, i.e.
Black Box Modular Switches Installation and User Guide (8/99) An important feature of the LE14XXA-Series is the use of 4-Port Modules (4PMs) and for flexible mixed-media connectivity to RJ-45 and fiber media use of Combo 4port module. Since the LE14XXA-Series have dual-speed capability for copper-port, the front port slots are designed to support all standard Ethernet media types at 10 or 100Mps speed.
Black Box Modular Switches Installation and User Guide (8/99) front of the module identifies it as “10 FL” to avoid confusion with other similar-looking 100Mb fiber QPMs. 5.2.2 LE1419C 100Mbps multi-mode FX-S C-4-port type, “snap-in” connector 100BASE-FX Multi-Mode SC Connectors The LE1419C is also a multi-mode 100Mbps fiber optic transceiver module, similar to the LE1428C. 1 2 3 It has the same LEDs indicating port activity (ACT), 1 FDX/HDX LK 1 2 ACT 3 4 Link (LK), and FDX.
Black Box Modular Switches 5.2.4 Installation and User Guide (8/99) LE1422C, 100Mb multi-mode FX 4-Port, MTRJ small-form-factor connector LE1422C is a multi-mode fiber optic 4-port module equipped with a small-form-factor MTRJ-type connector. It looks almost like an RJ-45 port, but it is black in color.
Black Box Modular Switches Installation and User Guide (8/99) LE1423C is a 4-port multi-mode fiber FX “small-form-factor” VF-45 connector used primarily in 100Mbps fiber-to-the-desktop links. Its size is similar to the MT-RJ port, but the VF-45 shell is slightly larger. When not in use, its appearance is distinctive because it has a tiny hinged door over the port hole to act as a dust cover.
Black Box Modular Switches Installation and User Guide (8/99) connection to another hub or switch typically.) When used for segments going to workstations and other user node device connections, the MDI-X push-button should be in the OUT (=) position. The LE1425C will support 10BASE-T unshielded twisted pair wiring (UTP) environments with maximum segment distances up to 100m (325 ft.), or shielded twisted pair wiring (STP) of 150m (500 ft.).
Black Box Modular Switches Installation and User Guide (8/99) Each 3+1 combo 4-port has an Activity (ACT) LED indicating packets being received, a Link (LK) LED that indicates proper connectivity with the remote device when lit, a FDX/HDX LED to indicate full-duplex mode when lit (or half-duplex when off). In addition, the RJ-45 ports have a “speed” LED indicating 100Mb when lit (or 10 Mbps when off). The fiber port is always 100Mbps speed. 5.2.
Black Box Modular Switches 6.0 Installation and User Guide (8/99) TROUBLESHOOTING If problems should develop during installation or operation, follow the suggestions below prior to calling Technical Support for help. If you are unsure of any procedure described in this chapter, or if the LE14XXA is not operating as expected, do not attempt to repair or alter the unit. Contact Black Box for assistance. 6.1 Before Calling for Assistance 1.
Black Box Modular Switches 4. Installation and User Guide (8/99) If the problem is isolated to a network device other than the LE14XXA -Series Modular Switch, replace the problem device with a known good device. Verify whether or not the problem is corrected. If it is not, go to step 5. If the problem is corrected, the Modular Switches and its associated cables will function properly. 5. 6.2 If the problem still exists, contact Black Box.
Black Box Modular Switches Installation and User Guide (8/99) Black Box Corporation The World’s Source for Connectivity Copyright 1999. Black Box Corporation. All rights reserved.