Black Box LBH21xA-H-SFP User manual

Universal Media Converter Switch
Provides full 1000-/100-/10-Mbps switching services
for high performance Ethernet LANs.
Includes two SFP open transceiver fiber switch ports
and one 10-/100-/1000-Mbps copper switch port.
LBH21xA-H-SFP LBH21xA-P-SFP
LBH21xAE-H-SFP LBH21xAE-P-SFP
LBH212A-HD-SFP LBH212A-PD-SFP

Radio Interference Regulations
724-746-5500 | blackbox.com Page 3
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.

NOM Statement
724-746-5500 | blackbox.com
Page 4
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.

NOM Statement
724-746-5500 | blackbox.com Page 5
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 desempeño; o
E: El aparato ha sido tirado o su cubierta ha sido dañada.

Trademarks Used in this Manual
724-746-5500 | blackbox.com
Page 6
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
724-746-5500 | blackbox.com Page 7
Table of Contents
1.SPECIFICATIONS..........................................................................9
1.1Technical Specifications........................................................9
1.2Summary of models and descriptions: ................................17
2.INTRODUCTION..........................................................................19
2.1Inspecting the Package and the Product.............................19
2.2Product Description.............................................................20
2.2.1LBH21-Series Product Description.................................20
2.3Frame Buffering and Latency..............................................24
2.4Features and Benefits .........................................................27
2.5Applications for LBH210-Series Converter Switches ..........29
3.INSTALLATION............................................................................32
3.1Locating the Converter Switch Unit.....................................32
3.2LE1505-RACK for Rack mounting applications...................33
3.3LH1505P-RACK for Rack Mounting....................................34
3.4 DIN-Rail mounting option ....................................................35
3.5Power Requirements for LBH21-Series Switches...............36
3.6Powering the LBH21-Series with DC power input...............37
3.7LBH21-Series, DC-powered Installation..............................38
3.8Connecting Ethernet Media.................................................39
3.8.1Connecting Twisted Pair.................................................40
3.8.2Installing LC-type SFP module.......................................40
3.8.3Connecting Single-Mode Fiber Optic..............................41
3.8.4Power Budget Calculations, Fiber Media .......................41
3.8.5Connections to NICs which support Auto-Negotiation....43
4.OPERATION.................................................................................44
4.1Triple-Speed Functionality, and Switching ..........................44
4.2Auto-cross (MDI-X), Auto-negotiation and Speed-sensing..45
4.3Dual LEDs, Top-front and in End with ports........................46

Table of Contents
724-746-5500 | blackbox.com
Page 8
5.TROUBLESHOOTING..................................................................47
5.1Before Calling for Assistance ..............................................48
5.2When Calling for Assistance................................................49
5.3Return Material Authorization (RMA) Procedure.................50
5.4Shipping and Packaging Information...................................51
APPENDIX A: WARRANTY INFORMATION.........................................52

Chapter 1: Specifications
724-746-5500 | blackbox.com Page 9
1. SPECIFICATIONS
1.1 Technical Specifications
Ports Performance
Data Rate: 10-/100-/1000-Mbps
Network Standards
1000Mb: Ethernet IEEE 802.3ab and 802.3z
1000BASE-T, -SX, -LX and -ZX
100Mb: Ethernet IEEE 802.3u, 100BASE-TX, 100BASE-FX
10 Mb: Ethernet IEEE 802.3, 10BASE-T
Auto-sensing for speed: IEEE 802.3z
Packet-Processing Between Domains
Filter and Forward Rate from 1000-Mbps ports:
1,488,000 pps max.
Filter and Forward Rate from 100-Mbps ports:
148,800 pps max.
Filtering and Forwarding Rate from 10-Mbps ports:
14,880 pps max.
Processing type: Store and Forward, non-blocking
Auto-learning: 1K-address table
Address buffer age-out time: 300 sec.
Packet buffers memory: 64KB, dynamically shared on all
domains
Latency (not including packet time):
1000 to 1000 Mbps:<3μs
100 to 100 Mbps: <5μs
10 to 10 Mbps: <18μs
100 to 10 Mbps: <5μs
10 to 100 Mbps: <15μs
Path Delay Value: 50 BT on all ports

Chapter 1: Specifications
724-746-5500 | blackbox.com
Page 10
Maximum Ethernet Segment (or Domain) Lengths
10BASE-T (Unshielded twisted pair) 100 m (328 ft)
100BASE-TX (CAT 5 UTP) 100 m (328 ft)
100BASE-FX, half-duplex: (multi-mode) 412 m (1350 ft)
100BASE-FX, full duplex: (multi-mode) 2 km (6562 ft)
100BASE-FX, half-duplex: (single-mode) 412 m (1350 ft)
100BASE-FX, full duplex: (single-mode) 20 km (65,620 ft)
100BASE-FX, full duplex: (single-mode, long reach) 40 km (131,240 ft)
1000BASE-T (CAT5E OR CAT6 recommended) 100 m (328 ft)
1000BASE-SX, full duplex, multi-mode (62.5um) 220 m (722 ft)
1000BASE-SX, full duplex, multi-mode (50um) 550 m (1804 ft)
1000BASE-LX, full duplex, single-mode (9um) 5 km (16404 ft)
1000BASE-ZX, full duplex, single-mode (9um) >70 km (229,659 ft)
Operating Environment
LBH21xA-H: (Hardened)
-13ºF to 140ºF (-25ºC to 60ºC) Long term per agency tests (UL)
-40ºF to 185ºF (-40ºC to 85ºC) Short term per IEC Type tests
LBH21xA-P: (Extreme)
-40ºF to 167ºF (-40ºC to 75ºC) Long term per agency tests (UL)
-40ºF to 185ºF (-40ºC to 85ºC) Short term per IEC Type tests
Storage Temperature,
All models: -40ºF to 212ºF (-40ºC to 100ºC)
Cold Start:
LBH21xA-H to -20ºC
LBH21xA-P to -40ºC
Ambient Relative Humidity: 5% to 95% (non-condensing)
Altitude: -200 to 50,000ft. (-60 to 15,000 m)
Conformal Coating (optional) for humidity protection

Chapter 1: Specifications
724-746-5500 | blackbox.com Page 11
Note: LBH21-Series are designed for NEBS compliance, including,
vibration, shock and altitude.
Packaging:
Enclosure: Rugged sheet metal (Aluminum)
Dimensions of the Switch unit:
3.5"H x 3.0"W x 1.0"D (8.9 x 7.6 x 2.5 cm)
Weight: LBH21-Series: 6.1 oz. (173g)
Power supply: LBH210A & AE-H: 5.8 oz (165g)
LBH210A & AE-P: 7.9 oz (225g)
Cooling Method:
Convection on the LBH21-Series models. The Hardened (H) factory floor
and Extreme (P) temperature uncontrolled location models have closed
cases to withstand dirt and use special thermal techniques to transfer
heat to the outside of the case for cooling.

Chapter 1: Specifications
724-746-5500 | blackbox.com
Page 12
POWER SUPPLY
AC POWER SUPPLY (using an external power adapter):
All models have a (8-15) VDC output with 6-ft. (1.8-m) long cord and a
2.5-mm center +ve jack. The power supplies are temperature rated to
match the Converter Switch ratings.
Factory Floor (H) Ratings (-25 to 60°C)
North America (LBH210A-H) models.
Hardened, factory floor temperature rated.
Input: 6ft AC power cord to IEC 320 connector on the 100-240 VAC
47-63 Hz external power adapter.
Output: 12-VDC, 1.25Amps
International (LBH210AE-H) 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: 12-VDC, 1.25 Amps

Chapter 1: Specifications
724-746-5500 | blackbox.com Page 13
Temperature uncontrolled Extreme (P) Ratings (-40 to 75°C)
North America (LBH210A-P) models. Outdoor temperature rated.
Input: 6-ft. (1.8-m) AC power cord to IEC 320 connector on the
100-240 VAC, 47-63-Hz external power adapters.
Output: 12-VDC, 2Amps.
International (LBH210AE-P) models. Outdoor temperature rated. Input:
IEC 320 connector on the 100-240-VAC, 47-63-Hz external power
adapter. Requires a user supplied power cord.
Output: 12-VDC, 2 Amps.
Direct DC POWER SUPPLY: built-in terminal block for
+, -, ground along with 12-VDC 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 Consumption: See Section 3.6.
Note 1: the 8-15V DC jack can be used for dual source DC input using
an AC adapter and the DC terminal block. Power supply protection is
provided by internal diodes.
Note 2: The Direct DC power floats. The user may ground either “+” or “-”
if desired.

Chapter 1: Specifications
724-746-5500 | blackbox.com
Page 14
Port Connectors:
One RJ-45 Port: supports 10/100/1000Mbps with auto cross (MDIX).
It is shielded 8-pin female connector for shielded (STP) and
unshielded (UTP) CAT 3, 4, 5 cables.
Two Fiber optic ports:
The LBH21-Series is 100BASE-FX or 1000BASE-SX /-LX
/ -ZX with a optional choice of multimode or
singlemode SFP connectors.
Switches:
Each SFP port is factory set to Gb speed.
User may select 100Mb speed via DIP switch on the back of the
unit.(see below)
Each SFP port is individually speed-selectable.
NOTE: After changing the speed switch setting, power cycle the
unit for the speed setting to take effect.

Chapter 1: Specifications
724-746-5500 | blackbox.com Page 15
LED Indicators (Two sets) top-front and end with ports
Top-Front: (shown)
POWER: Steady ON when power applied
Gb per port: Steady ON for 1000 Mbps;
OFF for 100 Mbps or 10 Mb speed
LK/ACT per port: Steady ON for LINK (LK) with
no traffic,
BLINKING for Activity
End with Ports:
POWER: Steady ON when power applied
10/100/Gb per RJ-45 port:Steady ON for 100Mb,
OFF for 10Mb,
BLINKING for Gb
Fiber port: LK/ACT: Steady ON for Link with
no traffic,
BLINKING for Activity
POWER
LK/ACT
Gb
LK/ACT
Gb
LK/ACT
PORT 1 PORT 2 PORT 3
PORT 3
Gb

Chapter 1: Specifications
724-746-5500 | blackbox.com
Page 16
Mounting options :
Metal mounting clips for panel mounting: included
DIN-Rail mounting option: (see Section 3.4)
Rack-mount option: LE1505-RACK
Mean Time Between Failure (MTBF):
over 15 years, Telcordia (Bellcore) Method
Agency Approvals and Standards Compliance:
UL Listed (UL 60950), cUL, CE, Emissions FCC Part 15 Class A
NEBS L3 and ETSI compliant.
P model: IEEE P1613 Env. Std for Electric Power Substations
P model: NEMA TS-2 and TEES for traffic control equipment
P model: designed for UL 2043 above-the-ceiling installation
IEC61850 EMC and Operating Conditions Class C Power Substations
Warranty: Three years, return to factory Made in USA

Chapter 1: Specifications
724-746-5500 | blackbox.com Page 17
1.2 Summary of models and descriptions:
(Hardened Model) for 1000Mb fiber
LBH210A-H-SFP = Hardened (H), one 10/100/1000Mb RJ-45+ two
LBH210AE-H-SFP* = 1000Mb Fiber ports for factory floor (-25 to 60C)
using a direct DC ( 8-15VDC) and/or external AC
hardened power supply (included).
LBH211A-H-SFP = Same as LBH210A model,
except AC hardened power supply is not included
LBH212A-H-SFP = Same as LBH211A model,
except 24VDC power input replaces 12VDC.
LBH212A-HD-SFP = Same as LBH212A model,
but includes DIN-Rail clip mounting option.
LBH214A-H-SFP = Same as LBH212A model,
except -48VDC power input replaces 24VDC
(Extreme Model) for 1000Mb fiber
LBH210A-P-SFP = Extreme (P), one 10/100/1000Mb RJ-45+ two
LBH210AE-P-SFP* = 1000Mb Fiber ports for uncontrolled (outdoor)
(-40 to 75C) using direct DC (8-15VDC) and/or
external AC premium power supply (included).
LBH211A-P-SFP = Same as LBH210A model,
except AC Premium power supply is not included
LBH212A-P-SFP = Same as LBH211A model,
except 24VDC power input replaces 12VDC.
LBH212A-PD-SFP = Same as LBH212A model,
but includes DIN-Rail clip mounting option.
LBH214A-P-SFP = Same as LBH212A model,
except -48VDC input replaces 24VDC
*AE models = (does not include a AC power cord)

Chapter 1: Specifications
724-746-5500 | blackbox.com
Page 18
Fiber Port Connectors:
Optional SFP Fiber transceivers for open SFP slots
LFP220P = 1000BASE-SX-LC: 850nm multi-mode SFP, 550 m
LFP221P = 1000BASE-SX Extended: 1310nm multi-mode fiber optic with
LC type connector, 2 km
LFP222P = 1000BASE-LX-SLC: 1310nm single-mode SFP, 10 km
LFP223P = 1000BASE-LX-SLC: 1310nm single-mode SFP, 25 km
LFP224P = 1000BASE-ZX-SLC: 1550nm single-mode SFP, 40 km
LFP225P = 1000BASE-ZX-SLC: 1550nm single-mode SFP, 70 km
LFP120P = 100BASE-FX, multi-mode SFP, 2 km
LFP121P = 100BASE-FX, single-mode SFP, 15 km
LFP122P = 100BASE-FX, single-mode SFP, 40 km
Accessories
LE1505-RACK = 19” Rack-mount tray for LBH21-series Switch models,
up to 16 units
Other Tray configurations with power supplies and power cabling
included – See Section 3.3
DIN-RAIL MC2 = Metal DIN-Rail mounting bracket for one
LBH21-Series Switch, See Section 3.4
Conformal Coating:
(for high humidity and “tropical” applications) - request quote

Chapter 2: Introduction
724-746-5500 | blackbox.com Page 19
2. INTRODUCTION
This section describes LBH21-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 immediately 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 LBH21-Series Converter Switch unit,
1 External Power Supply, (for LBH210A & AE models only)
1 set Metal panel mounting clips and screws (2 each)
1 User Guide (this manual)
Remove the Converter Switch from the shipping container. Be
sure to keep the shipping container in case you need to ship the unit at a
later date.
If items are missing or damaged, contact Black Box Technical
Support at 724-746-5500 or [email protected]. If you need to return
the unit, use the original shipping container. Refer to Chapter 5,
Troubleshooting, for specific return procedures.

Chapter 2: Introduction
724-746-5500 | blackbox.com
Page 20
2.2 Product Description
2.2.1 LBH21-Series Product Description
The latest technology of SFP fiber transceivers has been
integrated into the LBH21-Series Universal Converter Switch package. It
can handle any Gb fiber type – multi-mode and single-mode – and fiber
media distance with a selection of Gb SFP fiber transceivers, up to two of
which can be plugged in. It can also handle any 100Mb fiber media type
and distance in the same way, with a selection of 100Mb SFP fiber
transceivers that similarly plug in. And, for copper media attachment,
there is a 10/100/1000 auto-negotiating RJ-45 port. Where Gb Ethernet is
in use, the LBH21-Series converts all media combinations.
The LBH21-Series Converter Switches have two 1000Mb or
100Mb Fiber ports available to cover the full range of application
environments, with Hardened (factory floor), and Extreme-rated (outdoor)
versions. Extra features for heavy-duty and extended temperature
operation ranges are included selectively in the Hardened factory-floor
and Extreme-rated outdoor models. This selection of models and fiber
port types offers the best price-to-value ratio for each user and
installation. Where a Media Converter might have been used, a Converter
Switch offers a better value. The compact package is ideal for network
edge installations, and is able to be conveniently mounted to suit any
application.
The LBH21xA-H Hardened units are for the office and factory
floor applications. The hardened (-H) models are built with high-grade
components and are constructed using special thermal techniques and a
metal case for heavy-duty industrial jobs. In addition to a Hardened AC
power option and jack, terminals for internal DC power choices at 8 to
15V, 24V or -48V DC are included. The ambient temperature rating of -25
to 60C is for industrial use.