Black Box LBH184A User manual

LBH081A LBH181A

LBH082A LBH182A

LBH084A LBH184A

Hardened Industrial Switch

Provides eight 10/100 copper ports and one 100-Mbps fiber uplink port.

Operation is plug-and-play.

Front-mounted LEDs provide status information on each port.

724-746-5500 | blackbox.com

Page 1

Radio Interference Regulations

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. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference when the equipment is operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference.

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio Interference Regulation of Industry

Canada.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la classe A prescrites dans le Règlement sur le brouillage radioélectrique publié par

Industrie Canada.

Page 2 724-746-5500 | blackbox.com

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. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc..

6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que sean recomendados por el fabricante.

7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante.

8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones de operación. Todo otro servicio deberá ser referido a personal de servicio calificado.

9. El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su uso.

La colocación del aparato electric sobre una cama, sofá, alfombra o superficie similar puede bloquea la ventilación, no se debe colocar en libreros o gabinetes que impidan el flujo de aire por los orificios de ventilación.

10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores, registros de calor, estufas u otros aparatos (incluyendo amplificadores) que producen calor.

11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como se indique en el aparato.

12. Precaución debe ser tomada de tal 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 manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.

14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del fabricante.

15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas de

energia.

16. El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo.

17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilación.

18. Servicio por personal calificado deberá ser provisto cuando:

A: El cable de poder o el contacto ha sido dañado; u

B: Objectos han caído o líquido ha sido derramado dentro del aparato; o

C: El aparato ha sido expuesto a la lluvia; o

D: El aparato parece no operar normalmente o muestra un cambio en su

E: El aparato ha sido tirado o su cubierta ha sido dañada .


Page 3

Trademarks Used in this Manual

Trademarks Used in this Manual

Black Box and the Double Diamond logo are registered trademarks of BB

Technologies, Inc.

Ethernet is a trademark of Xerox Corporation

NEBS is a trademark of Telcordia Technologies

UL is a registered trademark of Underwriters Laboratories

Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.

We‘re here to help! If you have any questions about your application or our products, contact Black Box Tech Support at 724-746-5500 or go to blackbox.com and click on “Talk to Black Box.”

You’ll be live with one of our technical experts in less than 30 seconds.


Table of Contents

Table of Contents

1.

SPECIFICATIONS .................................................................................. 6

1.1

Technical Specifications ................................................................ 6

1.2

Ordering Information ..................................................................... 8

2.

INTRODUCTION ..................................................................................... 9

2.1

Inspecting the Package and Product ............................................ 9

2.2 Product Description - General ....................................................... 9

2.2.1

LBH18x chassis .............................................................. 11

2.2.2

LBH08x chassis .............................................................. 11

2.3

Fiber port, SC or LC Connector for Model LBH18x..................... 12

2.4

Frame Buffering and Latency ...................................................... 12

2.5

Features and Benefits ................................................................. 14

2.6

Applications ................................................................................. 15

3.

INSTALLATION ..................................................................................... 17

3.1

Locating LBH08x/LBH18x Series Switches ............................... 17

3.1.1

Table Top or Shelf Mounting .......................................... 17

3.1.2

Mounting Dimensions with metal brackets ..................... 17

3.2

DIN-Rail mounting option ............................................................ 20

3.3

Connecting Ethernet Media ......................................................... 20

3.3.1

Connecting Twisted Pair (RJ-45, CAT 3 or CAT 5) ....... 21

3.3.2

Connecting Fiber Optic SC-type, “Snap-In” ................... 21

3.3.3

Connecting Fiber Optic LC-type,

“Small Form factor (SFF)” .............................................. 21

3.3.4

Connecting Single-Mode Fiber Optic ............................. 21

3.3.5

Power Budget Calculations for LBH18x Fiber Media ..... 22

3.3.6

Connections to NICs which support Auto-Negotiation ... 22

3.4

Powering the LBH08x/LBH18x .................................................... 22

4.

OPERATION ......................................................................................... 23

4.1

Dual-Speed Functionality, and Switching .................................... 23

4.2

Auto-negotiation and Speed-sensing .......................................... 24

4.3

Auto-Cross (MDIX) and Auto-negotiation, for RJ-45 ports .......... 24

4.4

LED Indicators ............................................................................. 24

5.

TROUBLESHOOTING .......................................................................... 25

5.1

Before Calling for Assistance ...................................................... 25

5.2

When Calling for Assistance ....................................................... 26

5.3

Return Material Authorization (RMA) Procedure ......................... 26

5.4

Shipping and Packaging Information .......................................... 27

APPENDIX A: WARRANTY INFORMATION ............................................... 27

APPENDIX B: DC Power Input ..................................................................... 28


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Chapter 1: Specifications

1. SPECIFICATIONS

Performance

Filtering / Forwarding Rate:

Ethernet (10Mbps): 14,880 pps

Fast Ethernet (100Mbps): 148,800 pps

Switching Processing Type: Store and Forward with IEEE 802.3x full- duplex flow -control, non-blocking

Data Rate: 10Mbps and 100Mbps

Address Table Capacity: 4K node, self-learning with address aging

Packet buffer size: 256 KB total

μs + packet time (100 to 100Mbps)

Network Standards and Compliance, hardware

Ethernet V1.0/V2.0 IEEE 802.3: 10BASE-T,

IEEE 802.3u: 100Base-TX, 100BASE-FX

IEEE 802.1p: Priority protocol

IEEE 802.1d: Spanning tree protocol

IEEE 802.1w: Rapid Spanning tree protocol

IEEE 802.1q: VLAN Tagging

IEEE 802.3x: Flow Control

IEEE 802.3ad: Link Aggregation (Trunking)

IEEE 802.1x: Port based Network access control

Maximum 10 Mbps Ethernet Segment Lengths

Unshielded twisted pair - 100 m (328 ft)

Shielded twisted pair

10BASE-FL multi-mode fiber optic

10BASE-FL single-mode fiber optic

- 150 m (492 ft)

- 2 km (6,562 ft)

- 10 km (32,810 ft)

Maximum Standard Fast Ethernet Segment Lengths:

10BASE-T (CAT 3, 4, 5 UTP)

100BASE-TX (CAT 5 UTP)

Shielded twisted pair

100BASE-FX, half-duplex, multi-mode

- 100 m (328 ft)

- 100 m (328 ft)

- 150 m (492 ft)

- 412 m (1350 ft)

100BASE-FX, full-duplex, multi-mode - 2.0 km (6,562 ft)

100BASE-FX, half-duplex, single-mode - 412 m (1350 ft)

100BASE-FX, full-duplex, single-mode

100BASE-FX, full-duplex, Long Reach

- 20.0 km (66K ft)

- 40.0 km (122K ft)

Fiber Multi-mode connector types supported:

Fiber Port, LC-type (plug-in): MLC SFF Fiber multi-mode 100BASE-FX

Fiber Port, SC-type (plug-in), MSC multi-mode 100BASE-FX

Fiber Single-mode connector types:

Fiber Port, LC-type, Fiber SLC and SLCL SFF single-mode, 100BASE-FX

Fiber Port, SC-type, single-mode, SSC and SSCL SFF 100BASE-FX



LED Indicators

Steady On when power applied port) ON (100Mbps), OFF (10Mbps)

LINK/ACT: ON (Link), BLINKING (Activity)

Ambient Temperature:

13

° to 140° F (-25° to 60°C)

Storage Temperature: -58

°to 167°F (-50°to 75°C)

Ambient Relative Humidity: 10% to 95% (non-condensing)

Altitude: -200 to 13,000 ft. (-60 to 4000m)

Conformal Coating (humidity protection) optional: Request quote

Packaging

Enclosure: High strength sheet metal

Dimensions: 1.25 in H x 6.6 in W x 6.0 in D

(3.18 cm H x 16.76 cm W x 15.24 cm D)

Cooling method: Convection

Weight: 1 lb. (454 g)

DC Power Supply (Internal, floating ground)

DC Power Connector: Terminal block

12VDC Power Input nominal (range 9 to 15VDC)


-48VDC Power Input nominal (range 36 to 60VDC)

Std. Terminal Block : “ -, GND, + ”

8 watts Typical. , 9 watts Max.

Mounting:

Suitable for wall or DIN-Rail mounting

Agency Approvals and Standards Compliance:

UL listed (UL60950), cUL, CE, Emissions meet FCC Part 15 Class A

NEBS Level 3 and ETSI Compliant

[email protected]

for additional information.


Page 7


MODEL DESCRIPTION

LBH082A-H: Hardened Industrial Switch with 24VDC power input, eight

10/100Mbps switched RJ45 ports; panel-mount brackets

included

LBH082A-HD:

LBH081A-H:

LBH081A-HD:

LBH084A-H:

LBH084A-HD:

LBH182A-H-ff:

Same as LBH082A-H except a DIN-Rail bracket is included

Same as LBH082A-H except the power input is 12VDC


Same as LBH082A-H except the power input is -48VDC


Hardened Industrial Switch with 24VDC power input, eight

10/100Mbps switched RJ45 ports, one 100Mbps Fiber port and

Wall mount brackets included

LBH182A-HD-ff: Same as LBH182A-H except a DIN-Rail bracket is included

LBH181A-H-ff: Same as LBH182A-H except the power input is 12VDC


LBH184A-H-ff: Same as LBH182A-H except the power input is -48VDC


Fiber Port Connectors:

(“ff” selections of the “fiber flavor”)

“SC” =

“LC” =

100Base-FX, multi-mode, SC type, 2km

100Base-FX, multi-mode, LC type, 2km

“SSC20” = 100Base-FX, single-mode, SC type, 20km

“SSC40” = 100Base-FX, single-mode, SC type, “Long Reach” 40km

“SLC20” = 100Base-FX, single-mode, LC type, 20km

“SLC40” = 100Base-FX, single-mode, LC type, “Long Reach” 40km


Chapter 2: Introduction

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 that 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 Hardened Switch (LBH182, LBH181 or LBH184) with a Fiber Port, or

Hardened Switch (LBH082, LBH081 or LBH084) with all copper ports.

1 Set of metal clips and screws for secure shelf or wall-mounting

1 Installation and User Guide

Remove the Hardened Industrial Switch from the 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 the unit, use the original shipping container. Refer to Chapter 5,

Troubleshooting, for specific return procedures.

2.2 Product Description - General

In factory automation control systems, field bus control systems are giving way to IP-based networks. The Hardened Industrial switch provides modern Ethernet connectivity for a variety of factory automation and SCADA applications.

The Black Box LBH18x series Hardened switch provides eight 10/100 copper ports and one 100Mbps fiber up-link port. They are hardened to withstand the stress of industrial environments, highly reliable (over 25 years MTBF), and are easily fitted into industrial and telecom control cabinets. Operation is “plug-and-play.” Frontmounted LEDs provide status information on each port. Multiple LBH18x series switches can be linked in a cascaded or “daisy-chain” manner for expansion of the network.

The fiber port is available with a 2KM multi-mode SC or LC-type connector, or with a single-mode LC, SC-type to support 20 and 40 kilometers distance. The

100Mbps fiber port of the LBH18x supports full distance fiber LAN cabling to a wiring closet switch upstream.


Page 9


The LBH08x/LBH18x-Series industrial grade switch is DC-powered by

24VDC for factory floor or 48VDC for telco carrier field facilities, has a rugged metal case and metal mounting brackets suitable for panel mounting. Models with a DIN-

Rail mounting bracket included are available. The LBH08x/LBH18x industrial hardened switches and the other Black Box industrial networking products are backed by a three-year warranty.

Industrial switches can connect a group of Ethernet-ready, process control units to a central control switch or to backhaul aggregated data from a cluster of edge switches that is typical in telecommunication environment. These switches offer real time control and input-output data flow through factory floor and are easy to bring-up because they are standards-based. These switches also are ideal for cell phone backhaul using faster and longer-range fiber cable. Typically DIN-rail mounted, these switches can withstand factory floor temperatures and telco central office environment and can be used without any special enclosures, fans or heaters.

The LBH08x/LBH18x are easy to install and use. Addresses of attached nodes are automatically learned and maintained, adapting the switching services to network changes and expansions to provide plug-and-play operation. Flow control maximizes throughput across all ports. Front-mounted LEDs provide status information on each port.

The LBH18x model has one full-duplex 100Mbps switched fiber port, and eight switched 10/100 full/half auto-negotiating RJ-45 ports. While the switched fiber port is typically for a backbone connection, the switched RJ-45 ports can be used to connect a central control switch to various process control equipment or to aggregate data from a group of edge switches.



Fig 2.2a LBH082A-H and LBH182A-H-SC models shown

2.2.1 LBH18x chassis with SC or LC Fiber port

The LBH18x chassis houses one main PC board. The front side of the chassis has eight RJ-45 twisted-pair ports and one 100Mbps fiber port, located at the left front of the unit. Port #9 supports fiber ports only.

LEDs to indicate operating status of all ports are located on the front face per port. There is a power (PWR) indicator for the unit. For each port, there are Link and Activity (LINK/ACT) LEDs indicating traffic, and speed (ON for 100Mbps), and full/half (F/H) duplex indicators.

The DC power terminal block is located at the right side of the chassis, looking at the front. DC power option inputs are 12, 24 and -48VDC.

2.2.2 LBH08x chassis with all RJ-45 Copper ports

The LBH08x chassis houses one main PC board. The front side of the chassis has eight twisted-pair switched ports. All RJ-45 ports are Auto-negotiating and Auto-Cross MDI-MDIX.

LEDs to indicate operating status of all ports are located on the front face per port. There is a power (PWR) indicator for the unit. For each port, there are Link and Activity (LINK/ACT) LEDs indicating traffic, and speed (ON for 100Mbps), and full/half (F/H) duplex indicators.

The DC power terminal block is located at the left front side of the chassis.

DC power option inputs are 12, 24 and -48VDC.


Page 11


2.3 Fiber port, SC or LC Connector for Model LBH18x

The Fast Ethernet fiber port on the LBH18x is set to operate at fixed

100Mbps speed for guaranteed high performance. The LBH18x fiber port is factorybuilt as either a multi-mode SC, LC or single-mode SC or LC connector. The

100Mbps fiber port will run at 100Mbps speed at all times. The 100Mbps fiber port is a switched port and performs as a domain, providing a high bandwidth backbone connection (no media converter is required!) and supporting long (up to 40km) fiber cable distances for installation versatility.

On LBH18x units, there are two LED’s for the fiber port. One (LK/ACT) is steady ON to indicate LINK, blinking indicates the port is transmitting and receiving.

The F/H indicates full-duplex when ON, when it is OFF, operation is half-duplex.

A fiber cable must be connected to the 100Mbps port and a proper link (LK lit) must be made with the device at the other end of the cable in order for these LEDs to provide valid indications of operating conditions.

2.4 Frame Buffering and Latency

The LBH08x/LBH18x are store-and-forward switches. Each frame (or packet) is loaded into the Switch’s memory and inspected before forwarding can occur. This technique ensures that all forwarded frames are of a valid length and have the correct CRC, i.e., are good packets. This eliminates the propagation of bad packets, enabling all of the available bandwidth to be used for valid information.

While other switching technologies such as "cut-through" or "express" impose minimal frame latency, they will also permit bad frames to propagate out to the Ethernet segments connected. The "cut-through" technique permits collision fragment frames, which are a result of late collisions, to be forwarded to add to the network traffic. Since there is no way to filter frames with a bad CRC (the entire frame must be present in order for CRC to be calculated), the result of indiscriminate cut-through forwarding is greater traffic congestion, especially at peak activity. Since collisions and bad packets are more likely when traffic is heavy, the result of storeand-forward operation is that more bandwidth is available for good packets when the traffic load is greatest.

To minimize the possibility of dropping frames on congested ports, each

LBH08x/LBH18x Industrial Switch dynamically allocates buffer space from a 1MB memory pool, ensuring that heavily used ports receive very large buffer space for packet storage. (Many other switches have their packet buffer storage space divided evenly across all ports, resulting in a small, fixed number of packets to be stored per port. When the port buffer fills up, dropped packets result.) This dynamic buffer allocation provides the capability for the maximum resources of the LBH08x/LBH18x unit to be applied to all traffic loads, even when the traffic activity is unbalanced across the ports. Since the traffic on an operating network is constantly varying in packet density per port and in aggregate density, the Industrial 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”. This tells the sending devices to temporarily stop sending traffic, which allows a traffic catch-up to occur without dropping packets.

Then, normal packet buffering and processing resumes. This flow-control sequence occurs in a small fraction of a second and is transparent to an observer.

Another feature implemented in the LBH08x/LBH18x Industrial Switch is a collision-based flow-control mechanism (when operating at half-duplex only). When the Switch detects that its free buffer queue space is low, the Switch prevents more frames from entering by forcing a collision signal on all receiving half-duplex ports in order to stop incoming traffic.

The latency (the time the frame spends in the Switch before it is sent along or forwarded to its destination) of the LBH08x/LBH18x Industrial Switch varies with the port-speed types, and the length of the frame is a variable here as it is with all storeand-forward switches. For 10 Mbps-to-10 Mbps or 10 Mbps-to-100Mbps or 100Mbpsto-10 Mbps forwarding, the latency is 15 microseconds plus the packet time at 10

Mbps. For 100Mbps-to-100Mbps forwarding, the latency is 5 microseconds plus the packet time at 100Mbps.


Page 13


2.5 Features and Benefits

100Mbps switching services for factory automation Ethernet LANs

LBH08z/LBH18x 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 100Mbps (or 10 Mbps) of bandwidth.

Option for one “future-proof” fiber backbone port connector,

Built-in fiber ports may be ordered with 100Mbps full-duplex multi-mode

SC, LC and single-mode SC and LC connectors.

Model LBH08x with all RJ-45 (copper) ports

RJ-45 ports provide twisted pair segment connections, with autonegotiation and auto-cross MDI-MDIX functionality. All RJ-45 ports are capable of half- or full-duplex.

Installation is “Plug and Play”, operation is transparent to software

The LBH08x/LBH18x operates as a hardware switch, only forwarding those packets from each domain that are needed on the other domains.

Internal address tables are self-learning, enabling users to change port connections or 10/100 domains without affecting operations.

 Heavy-duty design for Industrial Ethernet and extended temperature operation

Fiber ports take more power than copper ports, but the LBH08x/LBH18x

Series design provides for this with heavy-duty components. The

LBH08x/LBH18x is designed for industrial use, is an enclosed convection-cooled package, and is UL rated at -25°C to 60°C ambient



2.6 Applications

The LBH08x and LBH18x are designed to bring future-proof fiber connectivity and widely- used copper connectivity to factory automation control systems, field bus control systems and many other industrial network environments.

Ethernet networks in factory control systems provide interoperability and bandwidth with universal connectivity via 10/100 RJ-45 ports, all at an economical cost. In control system cabinets, a small group of IEDs, PLCs, sensors, WAPs and control devices are co-located and connected into the network using twisted-pair copper cabling. Then, this group of devices is linked into the overall industrial network, typically with a fiber cable for noise immunity and distance. The

LBH08x/LBH18x-Series Hardened Ethernet Switches are ideal for these applications.

Example 1. LBH18x for industrial application

Equipped with lots of useful features including hardened enclosures, a wide spread of DC power supply options, and extended temperature ratings qualifies the

LBH08x/LBH18x Series Industrial switch for any Industrial factory-floor.

In an Industrial environment where the factory floors are networked with

Ethernet based mixed-media LANs and equipped with PLC computers to take readings and data from M/C Client/ Server databases and transport this important data to the central office data warehouses, the LBH08x/LBH18x Series shines. The

LBH08x/LBH18x features handle these kinds of networks very securely and reliably throughout the Factory-floors. The DIN-Rail Mounting options, allow the Industrial

Factory floor user to mount the LBH08x/LBH18x securely anywhere on their Network setup.


Page 15


Where there are existing 10 Mbps hubs or switch users, they can easily be cascaded into any port of the LBH18x. This allows a simple plug-and-play addition of

100Mbps ports to an existing 10 Mbps network without having to change it. Nodes that are capable of 100Mbps speed can be moved to a LBH18x port, and will automatically operate at the higher speed.

The 100Mbps fiber port on the LBH18x can be used for accommodating high performance data transfers, and provides fiber connectivity built-in rather than needing an auxiliary media converter unit. The 100Mbps traffic does not use the bandwidth of the 10 Mbps domain, so overall performance of the network is sustained at the highest possible level.

Example 2. LBH08x for office installation

In this example, the LBH08x Switch is used to serve a small office in a factory with multi-servers, print server, internet access and mixed-speed requirements. The users operate at 100Mbps as well as at 10 Mbps, and utility devices (such as print servers) run at 10 Mbps. High performance users need a high bandwidth up-link for access to a central LAN and central file servers. Any attached node can change speed at any time without affecting network operation or impacting other users. The multi-functional LBH08x switches provide this solution very efficiently and economically. Various features included MDIX, plug-n-play, Din-Rail mountings and dual LEDs make this compact switch a very effective solution for this requirement.


Chapter 3: Installation

3. 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 steady-state long-term environmental temperature around the equipment must be less than or equal to 60

0

C.

2.) If the equipment is mounted in an enclosed or multiple rack assembly, adequate airflow must be maintained for proper and safe operation.

3.) If the equipment is mounted in an enclosed or multiple rack system, placement of the equipment must not overload or load unevenly the rack system.

4.) If the equipment is mounted in an enclosed or multiple rack assembly, verify the equipment’s power requirements to prevent overloading of the building/s electrical circuits.

5.) If the equipment is mounted in an enclosed or multiple rack assembly verify that the equipment has a reliable and uncompromised earthing path .

This section describes installation of the LBH08x/LBH18x Switches, as well as connection of the various Ethernet media types.

For vertical panel mounting and wall mounting, see Section 3.1.2

For vertical DIN-Rail mounting, see Section 3.2

For DC power input data, see Appendix B.

The rugged metal case of the LBH08x/LBH18x will normally protect it from accidental damage in a lab or workplace setting. Maintain an open view of the front to visually monitor the status LEDs. Keep an open area around the unit so that cooling can occur from convection while the unit is in operation. The switch has no fans, so it is silent when in operation. Internal electronics use the case as a heat sink, so the unit may normally be quite warm to the touch.

3.1.1 Table Top or Shelf Mounting

The LBH08x/LBH18x Industrial switch can be easily mounted on a table-top or any suitable horizontal surface, and has four rubber feet to provide stability without scratching finished surfaces.

3.1.2 Mounting Dimensions with metal brackets

Each LBH08x/LBH18x switch is supplied with metal mounting brackets and screws to mount the unit securely on a panel or wall. It is recommended to mount the switch vertically in the mounting position shown below, for proper cooling and long-life reliability. It is also advisable to mount the unit with space for air movement around the top and the sides, typically a minimum of 1 inch.


Page 17


Note: The metal brackets supplied, hold the back of the switch out from the panel or wall behind it, creating a rear space of about 1/8 inch or 3mm. This allows air circulation and cooling of the rear part of the case.

For best cooling of the switch, attach the metal brackets to metal (rather than wood or plastic). Attaching to metal helps conduct heat away from the switch through the metal brackets and into the metal support structure.

Fig 3.1.2a LBH18x mounting dimensions



Fig 3.1.2b LBH08x mounting dimensions


Page 19


3.2 DIN-Rail mounting option

The LBH08x/LBH18x is designed for use in a “factory floor” industrial environment. It is available with an optional DIN-Rail bracket to mount it securely in a metal factory floor enclosure, maintained vertically for proper convection cooling of the unit. The LBH08x/LBH18x requires one

DIN-Rail bracket for secure mounting. See a LBH08x viewed from the bottom, at the rear, showing the DIN Rail in place.

The DIN Rail bracket is mounted to the bottom of the LBH08z/LBH18x unit, as shown. Four threaded holes are provided on the bottom of the unit for DIN-Rail mounting purposes. The required four screws are included with the DIN-Rail bracket, and are no.4-40 x 9/32 PHIL. PAN

Head. The rail clip is spring-loaded with a pull-up latch at the top for easy “snap-on” attachment and removal. The

LBH08x/LBH18x models with “HD” have the

DIN Rail bracket included and assembled on the unit at the factory.

3.3 Connecting Ethernet Media

The LBH08x/LBH18x Switches are specifically designed to support standard

Ethernet media types within a single Switch unit. This is accomplished by using a choice of five popular Fiber Connectors which can be individually selected and configured.

The various media types supported along with the corresponding IEEE

802.3, and 802.3u standards and connector types are as follows:

Media IEEE Standard Connector

Twisted Pair (CAT 3 or 5) 10BASE-T RJ-45

Twisted Pair (CAT 5)

Fiber (Multi-mode)

Fiber (Single-mode)

100BASE-TX

100BASE-FX

100BASE-FX

RJ-45

LC, SC

LC, SC

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 LBH08x/LBH18x Series Switch ports are auto-sensing for either 10 and 100Mbps. Note that the auto-sensing function does not sense the cable type.



3.3.1 Connecting Twisted Pair (RJ-45, CAT 3 or CAT 5)

(Unshielded or Shielded)

The following procedure describes how to connect a 10BASE-T or

100BASE-TX twisted pair segment to the RJ-45 port. The procedure is the same for both unshielded and shielded twisted pair cables.

1. Using standard twisted pair media, insert either end of the cable with a 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.

2. Connect the other end of the cable to the corresponding device.

3. Use the LINK LED to ensure proper connectivity by noting that the LED will be illuminated when the unit is powered and proper connection is established. If this does not help, ensure that the cable is connected properly and that the device on the other end is powered and is not defective.

3.3.2 Connecting Fiber Optic SC-type, “Snap-In”

The following procedure applies to installations using SC-type fiber connectors. This procedure applies to ports using SC fiber connectors.

1. Before connecting the fiber optic cable, remove the protective dust caps from the tips of the fiber connectors. Save these dust caps for future use.

2. Wipe clean the ends of the dual connectors with a soft cloth or lint-free lens tissue dampened in alcohol. Make certain the connectors are clean before connecting.

3. Snap the two square male connectors into the SC female jacks of the Fiber connector until it clicks and secures.

4. The LINK LED on the front of the fiber connector will illuminate when a proper connection has been established at both ends (and when power is ON in the unit).

3.3.3 Connecting Fiber Optic LC-type, “Small Form factor (SFF)”

The following procedure applies to installations using LC-type fiber connectors, i.e., using LC single-mode. While connecting fiber media to LC connectors, simply snap the two square male connectors into the LC female jacks of the Fiber connector until it clicks and secures.

3.3.4 Connecting Single-Mode Fiber Optic

When using single-mode fiber cable, be sure to use single-mode fiber port connectors. Single-mode fiber cable has a smaller diameter than multi-mode fiber cable (9/125 microns for single-mode, 50/125 or 62.5/125 microns for multi-mode where xx/xx are the diameters of the core and the core plus the cladding respectively). Single-mode fiber allows full bandwidth at longer distances, about

20Km with the multi-mode SC.

The same procedures as for multi-mode fiber apply to single-mode fiber connectors. Follow the steps listed in Section 3.3.2 above.


Page 21


3.3.5 Power Budget Calculations for LBH18x Fiber Media

Receiver Sensitivity and Transmitter Power are the parameters necessary to compute the power budget. To calculate the power budget of different fiber media installations using Black Box products, the following equations should be used:

OPB (Optical Power Budget) = P

T

(min) - P

R

(min)

where P

T

= Transmitter Output Power, and P

R

= Receiver Sensitivity

Worst case OPB = OPB - 1dB(for LED aging) - 1dB(for insertion loss)

Worst case distance = {Worst case OPB, in dB} / [Cable Loss, in dB/Km] where the “Cable Loss” for 62.5/125 and 50/125

μm

(m.m.) is 2.8 dB/km, and the “Cable Loss” for 100/140 (Multi-mode) is 3.3 dB/km, and the “Cable Loss” for 9/125 (Single-mode) is 0.5 dB/km

* 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) can be achieved

only

if the following factors are both applied:

•

The 100Mbps fiber segment must operate in full-duplex (FDX) mode, and

•

The worst-case OPB of the fiber link must be greater than the fiber cable’s passive Attenuation.

(Attenuation = Cable loss + LED aging loss + Insertion loss + safety factor

3.3.6 Connections to NICs which support Auto-Negotiation

The copper ports of LBH08x/LBH18x Industrial Switches will function properly with NICs (Network Interface Cards) which support Auto-Negotiation, and the Fast Link Pulse (FLP) coding for the 100BASE-TX signaling system. When connecting a NIC to the LBH08x/LBH18x, it may be necessary to reload the NIC drivers on the user device if the NIC has been communicating with a protocol other than 100BASE-TX (such as 10BASE-T). When 100Mbps operation is agreed and in use, the SPEED LED is illuminated steady ON. It is OFF if there is no traffic or if 10

Mbps traffic.

The DC internal power supply supports installation environments where the

DC voltage is from 9 to 60 volts depending on the model selected. When connecting the Ethernet cabling, there is no need to power down the unit. Individual cable segments can be connected or disconnected without concern for power-related problems or damage to the unit.

Power input options are available to suit the LBH08x/LBH18x Switches to special high-availability communications and/or heavy industrial-grade applications, including:

* 12VDC, -48VDC and 24VDC with single DC input


Chapter 4: Operation

4. OPERATION

This chapter describes the functions and operation of the LBH08x/LBH18x Switch.

4.1 Dual-Speed Functionality, and Switching

The LBH08x/LBH18x Hardened Industrial Switches provide eight switched ports, one of which may be 100Mbps fiber on the Model LBH18x. The architecture supports a dual-speed switching environment, with a built-in full-duplex “future-proof” fiber port. The Model LBH08x has RJ-45 copper on all the ports with auto-negotiation capability.

The switched RJ-45 ports are full-duplex and auto-sensing for speed. (See section 2.2). When the connected device is 10 Mbps, the LBH18x obeys all the rules of 10 Mbps Ethernet configurations. The 10 Mbps users share a 10 Mbps traffic domain, and can “communicate with” 100Mbps users as well as 100Mbps domain.

Similarly, the 100Mbps traffic obeys the rules of 100Mbps Ethernet, and can communicate with 10 Mbps domain too.

The LBH08x/LBH18x units are plug-and-play devices. There is no software configuring to be done at installation or for maintenance. The internal functions of both are described below.

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. Packets whose source and destination addresses on the same port segment will be filtered, constraining them to one port and relieving the rest of the network from processing them. A packet whose destination address is on another port segment will be forwarded to the appropriate port, and will not be sent to the other ports where it is not needed. Packets needed for maintaining the operation of the network (such as occasional multi-cast packets) are forwarded to all ports.

The LBH08x/LBH18x Industrial Switches operate in the store-and-forward switching mode, which eliminates bad packets and enables peak performance to be achieved when there is heavy traffic on the network.

Switching, Address Learning

The LBH08x/LBH18x units have address table capacity of 4K 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 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 downand-up.


Page 23

Chapter 4: Operation

4.2 Auto-negotiation and Speed-sensing

All eight RJ-45 ports independently support auto-negotiation for speed in

10BASE-T and 100BASE-TX modes. Operation is according to the IEEE 802.3u standard.

When a RJ-45 cable connection is made, and each time a LINK is enabled, auto-negotiation takes place. The LBH08x/LBH18x advertises its capability for 10 or

100 Mbps speed, and the device at the other end of the cable should similarly advertise / respond and both sides will agree to the speed being used. Depending upon the device connected, this will result in agreement to operate at either 10 Mbps or 100Mbps speed.

When the ‘LINK/ACT’ LED is ON, steady ON indicates LINK with no traffic, blinking ON indicates the port is transmitting / receiving. The port has auto-negotiated for operation. (If a LBH08x or LBH18x RJ-45 port is connected to a non-negotiating device, it will default to 10 Mbps speed and half-duplex mode, per the IEEE 802.3u standard).

4.3 Auto-Cross (MDIX) and Auto-negotiation, for RJ-45 ports

The RJ-45 ports independently support auto-cross (MDI or MDIX) in auto-negotiation mode and will work properly with all the other connected devices with RJ-45 ports whether they support auto-negotiation (e.g., 10Mbps hub, media converter) or fixed mode at 10Mbps or 100Mbps Half/Full Duplex (managed switch) or not. No cross-over cable is required while using the LBH08x/LBH18x copper port to other devices. Operation is according to the IEEE 802.3u standard.

F/H:

(when LINK is made) indicates port is transmitting and receiving.

ON = Full-Duplex and Link,

OFF = Half-Duplex and / or no Link


4.

2.

3.

Chapter 5: Troubleshooting

5. TROUBLESHOOTING

All Black Box Ethernet products are designed to provide reliability and consistently high performance in all network environments. The installation of Black

Box LBH08x and LBH18x Industrial Switch is a straightforward procedure (see

INSTALLATION, Section 3.0); the operation is also straightforward and is discussed in Section 4.

Should problems develop during installation or operation, this section is intended to help locate, identify and correct these types of problems. Please follow the suggestions listed below prior to contacting your supplier. However, if you are unsure of the procedures described in this section or if the Black Box

LBH08x/LBH18x Industrial Switch is not performing as expected, do not attempt to repair the unit; instead contact your supplier for assistance or contact Black Box

Customer Support.

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 applicable chapter of this manual. Also check to make sure that the various components of the network are interoperable.

Check the cables and connectors to ensure that they have been properly connected and the cables/wires have not been crimped or in some way impaired during installation. (About 90% of network downtime can be attributed to wiring and connector problems.)

If the problem is isolated to a network device other than the LBH08x/LBH18x

Industrial Switch product, it is recommended that the problem device is replaced with a known good device. Verify whether or not the problem is corrected. If not, go to Step 4 below. If the problem is corrected, the

LBH08x/LBH18x Industrial Switch and its associated cables are functioning properly.

If the problem continues after completing Step 3 above, contact your supplier of the LBH08x/LBH18x Industrial Switch unit or if unknown, contact

Black Box Tech support (see page 4 of this guide) for assistance.


Page 25


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 problem; d. Any particular application that, when used, appears to create the

problem;

2. An accurate list of Black Box product model(s) involved, with serial number(s). Include the date(s) that you purchased the products from your supplier.

3. It is useful to include other network equipment models and related hardware, including personal computers, workstations, 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 to the occurrence of the problem. Any changes to system administration procedures should all be noted in this record.

All returns for repair must be accompanied by a Return Material

Authorization (RMA) number. To obtain an RMA number, please contact Black Box

Tech support.

Please have the following information readily available:

Name and phone number of your contact person.

Name of your company / institution

Serial Number (or Invoice Number)

Packing List Number (or Sales Order Number)

Date of installation

Failure symptoms, including a full description of the problem.

Black Box will carefully test and evaluate all returned products, will repair products that are under warranty at no charge, and will return the warrantyrepaired units to the sender with shipping charges prepaid (see Warranty

Information, Appendix A, for complete details). However, if the problem or condition causing the return cannot be duplicated by Black Box, the unit will be returned as:

No Problem Found.



Black Box reserves the right to charge for the testing of non-defective units under warranty. Testing and repair of product that is not under warranty will result in a customer (user) charge.

5.4 Shipping and Packaging Information

Should you need to ship the unit back to Black Box, please follow these instructions:

1. Package the unit carefully. It is recommended that you use the original container if available. Units should be wrapped in a "bubble-wrap" plastic sheet or bag for shipping protection. (You may retain all connectors and this Installation Guide.)

CAUTION :

Do not pack the unit in Styrofoam "popcorn" type packing material. This material may cause electro-static shock damage to the

unit.

2. Clearly mark the Return Material Authorization (RMA) number on the outside of the shipping container.

3. Black Box is not responsible for your return shipping charges.

4. Ship the package to:

Black Box Network Services

(contact Black Box Tech support for information)

APPENDIX A: WARRANTY INFORMATION

Black Box warrants its products to be free from defects in materials and workmanship for a period of three (3) years from the date of shipment.

During this warranty period, Black Box will repair or, at its option, replace components in the products that prove to be defective at no charge other than shipping and handling, provided that the product is returned prepaid to Black Box.

This warranty will not be effective if, in the opinion of Black Box, the product has been damaged by misuse, misapplication, or as a result of service or modification other than by Black Box.

Black Box reserves the right to make a charge for handling and inspecting any product returned for warranty repair which turns out not to be faulty.


Page 27

Appendix B

APPENDIX B: DC Power Input

B1.0 Specifications for LBH08x/LBH18x Switches, DC Power at 12, 24 and

–48VDC Power input

Each Black Box LBH08x/LBH18x Switch requires DC power input, at 12, 24 and 48VDC. The wide range of DC power input types qualifies this product for use in

12, 24 and 48 applications in different industries.

DC Power Terminals: “+”, “

-

” are internally floating so that user may ground either

GND: ground wire connection to the chassis (#6-32 thread)

Power Consumption:

8 watts typical, 9 watts Max.


B2.0 12, 24 and –48VDC

POWER, THEORY OF

OPERATION


-48VDC Power Input nominal (range 36 to 60VDC)

The 12, 24 and -

48VDC power options are designed using diodes inside on each DC power input line behind the two external power connection terminals, so that the power from an external source can only flow into the hub. This allows the Switch to operate only whenever DC power is correctly applied to the two inputs. It protects the Switch from incorrect DC input connections. An incorrect polarity connection, for example, will neither affect the Switch, its internal power supply, nor will it blow the fuse in the internal power supply.

B3.0 APPLICATIONS FOR DC POWERED ETHERNET SWITCHES

Black Box LBH08x/LBH18x Switches are easily installed in a variety of applications where 12, 24 and -48VDC power is used as the primary power source.

The DC power configuration capability provides an Ethernet networking solution utilizing a special power supply in switches with a proven track record.

The –48VDC solution is particularly useful in the telecommunication industry, where it is common for facilities to operate on -48VDC power. Such companies include regular and wireless telephone service providers, Internet Service

Providers (ISPs) and other communication companies. In addition, many high availability equipment services, such as broadcasters, publishers, newspaper operations, brokerage firms and other facilities often use a battery backup system to maintain operations in the event of a power failure. It is also frequently used for computer system backup, management and operations monitoring equipment.


Appendix B

The 24VDC option is particularly useful in the industrial environment, where it is common for facilities to operate on 24VDC power. The 24VDC applications are mainly in heavy duty industrial automation such as factory floor, process plants,

HVAC, military equipment, etc.

B4.0 12, 24 and –48VDC INSTALLATION

This section describes the proper connection of the 12, 24, –48, leads to the

DC power terminal block on the LBH08x/LBH18x Switch. The DC terminal block on the LBH18x Switch is located on the right side of the unit and the LBH08x terminal block is located on the left front and both are equipped with four (4) screw-down lead posts. The power terminals are identified as positive (+) and negative (-), and they are electrically floating inside the unit so that either may be grounded by the user if desired. The chassis is “earth” or ground (GND).

The connection procedure is straightforward. Simply insert the DC leads to the Switch’s power terminals, positive (+) and negative (-) screws. The use of Ground

(GND) connects to the Switch chassis screw provided under the DC terminal. Ensure that each lead is securely tightened.

Fig B4.0a LBH18x Power Input

Fig B4.0b LBH08x Power Input


Page 29

Appendix B

NOTE: Always use a voltmeter to measure the voltage of the incoming power supply and figure out the +ve potential lead or -ve potential lead. The more +ve potential lead will connect to the post labeled “+ve” and the rest to the “-ve”. The GND can be hooked up at the last.

When power is applied, the green PWR LED will illuminate.

Note: The GND should be hooked up first. The switch has a floating ground, so the user may elect to Ground either + or - terminal to suit the customer’s use.

Before connecting live power lines to the Terminal Block of –48VDC,

12VDC and 24VDC always use a digital voltmeter to measure the output voltage of the power supply and determine the lead which is more “+ve potential”. The more “+ve” voltage lead from 48V or –48V supply must be connected to the post labeled “+”.

B4.1 UL Requirements for DC-powered units

CAUTION: 48VDC products shall be installed with a readily accessible disconnect device in the building installation supply circuit to the product.

Minimum 18AWG cable for connection to a Centralized DC power source.

1. Minimum 14AWG cable for connection to an earth wiring.

2. Use only with Listed 10A circuit breaker provided in building installation.

3. “Complies with FDA radiation performance standards, 21 CFR subchapter

J.” or equivalent.

4. Fastening torque of the lugs on the terminal block: 9 inch-pound max.

5. To secure a centralized DC Power Source cable , use at least four cable ties to secure the cable to the rack at least 4 inches apart, with the first one

located within 6 inches of the terminal block.

B5.0 TROUBLESHOOTING

Please refer to Section 5.0 for troubleshooting.



Page 31

LBH081A, rev. 1


Black Box LBH184A User manual

Hardened Industrial Switch

Provides eight 10/100 copper ports and one 100-Mbps fiber uplink port.

Operation is plug-and-play.

Front-mounted LEDs provide status information on each port.

Federal Communications Commission and Industry Canada Radio

Frequency Interference Statements

Trademarks Used in this Manual

Table of Contents

1. SPECIFICATIONS

[email protected]

MODEL DESCRIPTION

2. INTRODUCTION

2.6 Applications

3. INSTALLATION

only

4. OPERATION

5. TROUBLESHOOTING

5.2 When Calling for Assistance

CAUTION :

APPENDIX A: WARRANTY INFORMATION

APPENDIX B: DC Power Input

CAUTION: 48VDC products shall be installed with a readily accessible disconnect device in the building installation supply circuit to the product.

Related manuals

Table of contents

Black Box LBH184A User manual

Hardened Industrial Switch

Provides eight 10/100 copper ports and one 100-Mbps fiber uplink port.

Operation is plug-and-play.

Front-mounted LEDs provide status information on each port.

Federal Communications Commission and Industry Canada Radio

Frequency Interference Statements

Trademarks Used in this Manual

Table of Contents

1. SPECIFICATIONS

[email protected]

MODEL DESCRIPTION

2. INTRODUCTION

2.6 Applications

3. INSTALLATION

only

4. OPERATION

5. TROUBLESHOOTING

5.2 When Calling for Assistance

CAUTION :

APPENDIX A: WARRANTY INFORMATION

APPENDIX B: DC Power Input

CAUTION: 48VDC products shall be installed with a readily accessible disconnect device in the building installation supply circuit to the product.

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Table of contents