LPB2810A LPB2826A LPB2848A 10-, 26-, or 48-Port PoE+ Gigabit Managed Switch Eco Quick Start Guide An affordable managed switch with the power to be a key component of your network infrastructure. Customer Support Information LGB1108A Quick Start Guide BLACK BOX ® Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S.
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FCC Statement Federal Communications Commission and Industry Canada 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.
NOM Statement Instrucciones de Seguridad (Normas Oficiales Mexicanas Electrical Safety Statement) 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 deberán ser guardadas para referencia futura. 3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas. 4. Todas las instrucciones de operación y uso deben ser seguidas. 5.
Table of Contents Table of Contents 1. Specifications..........................................................................................................................................................................6 1.1 Physical Characteristics...................................................................................................................................................6 1.2 Switch Features..........................................................................................
Chapter 1: Specifications 1. Specifications 1.
Chapter 1: Specifications 1.3 Management Features In-Band Management — SSH/SSL, Telnet, SNMP, or HTTP Out-of-Band Management — RS-232 (RJ-45 console port) Software Loading — HTP, TFTP in-band, Console out-of-band 1.4 Standards Standards — IEEE 802.3: 10BASE-T Ethernet (twisted-pair copper), IEEE 802.3u: 100BASE-TX Ethernet (twisted-pair copper), IEEE 802.3ab: 1000BASE-TX Ethernet (twisted-pair copper), IEEE 802.3z: 1000BASE-X Ethernet, IEEE 802.3x: flow control capability, ANSI/IEEE 802.
Chapter 2: Overview 2. Overview 2.1 Introduction The 10-, 26-, or 48-Port PoE+ Gigabit Managed Switch Eco is an affordable managed switch that is a key part of a reliable infrastructure for your business network. This switch delivers the kind of intelligent features you need: • to improve the availability of your critical business applications; • to protect your sensitive information; and • to optimize your network bandwidth.
Chapter 2: Overview 2.3 Description of Hardware •1 000BASE-T Ports: The switch contains (8), (20), or (44) 1000BASE-T RJ-45 ports. All RJ-45 ports support automatic MDI/ MDI-X operation, autonegotiation, and IEEE 802.3x autonegotiation of flow control, so the optimum data rate and transmission can be selected automatically.
Chapter 2: Overview • Port and System Status LEDs: The switch includes a display panel for system and port indications that simplify installation and network troubleshooting. The LEDs are located on the left side of the front panels for easy viewing. Details are shown below and in Tables 2-2 and 2-3: Table 2-2: Port Status LEDs LED Conditions Status TP (Link/ACT) Green Lit Green when TP link is good; blinks when any traffic is present.
Chapter 3: Network Planning 3. Network Planning 3.1 Introduction to Switching A network switch is one of the most important devices for today’s networking technology. It enables simultaneous transmission of multiple packets, and it can partition a network more efficiently than bridges or routers. When performance bottlenecks are caused by congestion at the network access point such as a file server, devices can be connected directly to a switched port.
Chapter 3: Network Planning LPB2810A Figure 3-2. Peer-to-peer network connection Internet LPB2810A LPB2810A LPB2810A Figure 3-3. Office network connection Page 12 724-746-5500 | blackbox.
Chapter 4: Installation 4. Installation 4.1 Selecting a Site The switch can be mounted in a standard 19-inch equipment rack (via an optional rackmount kit) or on a flat surface. Be sure to follow the guidelines below when choosing a location. The site should: • Be at the center of all the devices you want to link and near a power outlet. • Be able to maintain its temperature within 32 to 104° F (0 to 40° C) and its humidity within 10 to 90%, noncondensing.
Chapter 4: Installation 4.4 What’s Included • 10-, 26-, or 48-Port PoE+ Gigabit Managed Switch Eco (LPB2810A, LPB2826A, or LPB2848A) • AC power cord • (4) Adhesive rubber feet • RS-232 to RJ-45 console cable (for LPB2810A and LPB2826A) or DB9 to DB9 console cable (for LPB2848A) • (2) brackets • (6) screws • This quick start guide • User’s manual on CD NOTE: Call Black Box immediately if any of these items is missing or damaged. WARNING: The SFP transceivers are Class 1 Laser Devices.
Chapter 4: Installation Step 2. Mount the switch and bracket assembly in the rack using (4) rackmounting screws (not provided). Be sure to secure the lower rackmounting screws first to prevent the brackets from being bent by the weight of the switch. Figure 4-4 Installing the switch in a rack. Step 3. If installing a single switch only, turn to “Connecting to a Power Source“ later in this chapter. Step 4. If installing multiple switches, mount them in the rack, one below the other, in any order.
Chapter 4: Installation Optional SFP Transceivers You can install or remove an SFP transceiver from an SFP slot without powering off the switch. NOTE: The SFP slots are shared with the two or four 10/100/1000BASE-T RJ-45 ports. If an SFP transceiver is installed in a slot, the associated RJ-45 port is disabled and cannot be used. The LPB2810A has (2) dual-media SFP/(10/100/1000) RJ-45 ports. The LPB2826A has (4) dual-media SFP/(10/100/11000) RJ-45 ports, plus (2) extra SFP ports.
Chapter 4: Installation Connecting to a Power Source You can plug or remove the power cord from the AC power socket to switch the power on and off . Step 1. Insert the power cable plug directly into the AC socket located at the back of the switch. Step 2. Plug the other end of the cable into a grounded, 3-pin, AC power source. Step 3. Check the front-panel LEDs as the device is powered on to be sure the POWER LED is lit. If it isn’t, check that the power cable is plugged in correctly.
Chapter 4: Installation The serial port’s configuration requirements are as follows: • Default baud rate—115,200 bps • Character size—8 characters • Parity—None • Stop bit—One • Data bits—8 • Flow control—none Using Web-based Management The default values of the managed switch are listed in the table below: Table 4-3: Using Web-based Management. IP Address 192.168.1.1 Subnet Mask 255.255.255.0 Default 192.168.1.254 Username admin Password Page 18 724-746-5500 | blackbox.
Chapter 4: Installation After configuring the managed switch in the CLI via the switch’s serial interface, you can browse it. For instance, type “http://192.168.1.1“ [without the quotes] in the address bar in a browser, and it will show the following screen and ask you to log in. When you log in the first time, the default username is “admin”. and the password field remains blank. Figure 4-9. Web User Interface screen.
Chapter 4: Installation Figure 4-11. System Information Help screen. Page 20 724-746-5500 | blackbox.
Chapter 5: Network Connections 5. Network Connections 5.1 Connecting Network Devices The switch is designed to be connected to 10-, 100-, or 1000-Mbps network cards in PCs and servers, as well as to other switches and hubs. It may also be connected to remote devices using optional SFP transceivers. 5.2 Twisted-Pair Devices Each device requires an unshielded twisted-pair (UTP) cable with RJ-45 connectors at both ends.
Chapter 5: Network Connections Figure 5-1. Network wiring connections. Fiber Optic SFP Devices An optional Gigabit SFP transceiver can be used for a backbone connection between switches, or for connecting to a high-speed server. Each single-mode fiber port requires 9-/125- micron single-mode fiber optic cable with an LC connector at both ends. Each multimode fiber optic port requires 50-/125- or 62.5-/125-micron multimode fiber optic cabling with an LC connector at both ends.
Chapter 5: Network Connections Figure 5-2. Making the fiber port connections. Step 4. As a connection is made, check the Link LED on the switch corresponding to the port to be sure that the connection is valid. The fiber optic ports operate at 1 Gbps. The maximum length for fiber optic cable operating at Gigabit speed will depend on the fiber type as listed in Tables 5-2 to 5-4.
Chapter 5: Network Connections 1000-Mbps Gigabit Ethernet Collision Domain Table 5-1: Maximum 1000BASE-T Gigabit Ethernet cable length. Cable Type Maximum Cable Length Connector Category 5, 5e, or 6 100-ohm UTP or STP 100 m (328 ft.) RJ-45 Table 5-2: Maximum 1000BASE-SX Gigabit fiber cable lengths. Fiber Size 62.5/125 micron multimode 50/125 micron multimode Fiber Bandwidth Maximum Cable Length Connector 160 MHz/km 220 m (722 ft.) LC 200 MHz/km 275 m (902 ft.
Chapter 6: Labeling Connections 6. Labeling Connections When planning a network installation, it is essential to label the opposing ends of cables and to record where each cable is connected. This will enable users to easily locate interconnected devices, isolate faults, and change your topology without wasting time. To best manage the physical implementations of your network, follow these guidelines: • Clearly label the opposing ends of each cable.
Chapter 7: Troubleshooting 7. Troubleshooting 7.1 Common Problems Most problems are caused by the following situations. Check for these items first when starting your troubleshooting: Connecting to Devices That Have a Fixed Full-Duplex Configuration The RJ-45 ports are configured as “Auto.
Chapter 7: Troubleshooting Table 7-1: Troubleshooting chart. Symptom Action Check connections between the switch, the power cord, and the wall outlet. Power LED is off Contact Black Box. Verify that the switch and attached device are powered on. Be sure the cable is plugged into the switch and corresponding device. Link LED is off If the switch is installed in a rack, check the connections to the punchdown block and patch panel.
Chapter 8: Cabling 8. Cabling For 10BASE-T and 100BASE-TX connections, the twisted-pair cable must have two pairs of wires. For 1000BASE-T connections, the twisted-pair cable must have four pairs of wires. Each wire pair is identified by two different colors. For example, one wire might be green and the other, green with white stripes. Also, an RJ-45 connector must be attached to both ends of the cable. CAUTION: DO NOT plug a phone jack connector into any RJ-45 port.
Chapter 8: Cabling Straight-Through Wiring If the twisted-pair cable is to join two ports, and only one of the ports has an internal crossover (MDI-X), the two pairs of wires must be straight-through. (When auto-negotiation is enabled for any RJ-45 port on this switch, you can use either straightthrough or crossover cable to connect to any device type.) You must connect all four wire pairs as shown in the following diagram to support Gigabit Ethernet. Figure 8-2.
Chapter 8: Cabling Table 8-2: 1000BASE-T MDI and MDI-X Port Pinouts Pin MDI Signal Name MDI-X Signal Name 1 Bidirectional Pair A Plus (BI_DA+) Bidirectional Pair B Plus (BI_DB+) 2 Bidirectional Pair A Minus (BI_DA-) Bidirectional Pair B Minus (BI_DB-) 3 Bidirectional Pair B Plus (BI_DB+) Bidirectional Pair A Plus (BI_DA+) 4 Bidirectional Pair C Plus (BI_DC+) Bidirectional Pair D Plus (BI_DD+) 5 Bidirectional Pair C Minus (BI_DC-) Bidirectional Pair D Minus (BI_DD-) 6 Bidirectional Pair B
Chapter 8: Cabling Fiber Standards The International Telecommunication Union (ITU-T) has standardized various fiber types for data networks. These are summarized in the following table: Table 8-3: Fiber standards. ITU-T Standard Description Application G.651 Multimode fiber 50/125-micron core Short-reach connections in the 1300- nm or 850-nm band. G.652 Non-dispersion-shifted fiber single-mode, 9/125-micron core Longer spans and extended reach. Optimized for operation in the 1310-nm band.
Chapter 9: Glossary 9. Glossary 10BASE-T: IEEE 802.3 specification for 10-Mbps Ethernet over two pairs of Category 3, 4, or 5 UTP cable. 100BASE-TX: IEEE 802.3u specification for 100-Mbps Ethernet over two pairs of Category 5 UTP cable. 1000BASE-LH: Specification for long-haul Gigabit Ethernet over two strands of 9-/125-micron core fiber cable. 1000BASE-LX: IEEE 802.3z specification for Gigabit Ethernet over two strands of 50-/125-, 62.5-/125-, or 9-/125-micron core fiber cable. 1000BASE-SX: IEEE 802.
Chapter 9: Glossary Local Area Network (LAN): A group of interconnected computer and support devices. Media Access Control (MAC): A portion of the networking protocol that governs access to the transmission medium, facilitating the exchange of data between network nodes. MIB: An acronym for Management Information Base. It is a set of database objects that contains information about the device.
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