Black Box LP004A User manual

© Copyright 2006. Black Box Corporation. All rights reserved.
1000 PARK DRIVE • LAWRENCE, PA 15055-1018 • 724-746-5500 • FAX [phone]
January2006
LP004A
Power over Ethernet (PoE) Switch
CUSTOME
R
SUPPORT
INFORMATION
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax [phone]
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [email protected]

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User
Guide
i
BLACK BOX®Series
Power over Ethernet (PoE) Switch
Installation and User Guide
Trademarks
Ethernet is a trademark of Xerox Corporation
NEBS is a trademark of Telcordia Technologies
UL is a registered trademark of Underwriters Laboratories
Important: The LP004A 10/100 Mb/s Power over Ethernet (PoE) Switch
contains no user serviceable parts. Attempted service by unauthorized
personnel shall render all warranties null and void. If problems are
experienced with LP004A 10/100 Mb/s PoE Switch products, consult Section
5, Troubleshooting, of this User Guide.
Copyright ©2006 BLACK BOX®Corporation. All rights reserved. No part of this
publication may be reproduced without prior written permission from Black Box, Inc.
Printed in the United States of America.

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User
Guide
ii
Contacting Black Box Corporation
Please use these mailing address and phone and fax numbers:
Black Box Corporation
1000 Park Drive
Pittsburgh, PA 15055
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
__________________________________________________________

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User
Guide
iii
FEDERAL COMMUNICATIONS COMMISSION
AND
CANADIAN DEPARTMENT OF COMMUNICATIONS
RADIO FREQUENCY INTERFERENCE STATEMENTS
This equipment generates, uses, and can radiate radio frequency energy and if not
installed and used properly, that is, in strict accordance with the manufacturer’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.

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User
Guide
iv
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 the Canadian
Department of Communications.
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 le ministère des Communications du Canada.
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. Todas las instrucciones de operación y uso deben ser seguidas.

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User
Guide
v
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
reconnendados por el fabricante.
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recommendado por el
fabricante.
8. Servicio—El usuario no debe intentar dar sercicio al equipo eléctrico más allá a lo descrito en
las instrucciones de operatión. Todo otro servicio deberá ser referido a personal de servicio
calificado.
9. El aparato eléctrico debe ser situado de tal mannera que su posición no interfiera su uso. La
colocación del aparato eléctrico 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 du fuentes de calor como radiadores,
registros de calor, estufas u otros aparatos (incluyendo amplificadores) que producen calor.

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User
Guide
vi
11. El aparato eléctrico deberá ser connectado una fuente de poder sólo del tipo descrito en el
instrucivo de operación, o como se indique en el aparato.
12. Precaución debe ser tomada de mal 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 recommendaciones 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

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User
Guide
vii
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.
Certification Notice for
Equipment Used in Canada
The Canadian Department of Communications label identifies certified equipment. This
certification means that the equipment meets certain telecommunications-network
protective, operation, and safety requirements. The Department does not guarantee the
equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be
connected to the facilities of the local telecommunications company. The equipment
must also be installed using an acceptable method of connection. In some cases, the
company’s inside wiring associated with a single-line individual service may be extended
by means of a certified connector assembly (extension cord). The customer should be

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User
Guide
viii
aware that compliance with the above conditions may not prevent degradation of service
in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance
facility—in this case, your supplier. Any repairs or alterations made by the user to this
equipment, or equipment malfunctions, may give the telecommunications company cause
to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the
power utility, telephone lines, and internal metallic water pipe system, if present, are
connected together. This precaution may be particularly important in rural areas.
CAUTION:
Users should not attempt to make such
connections themselves, but should contact
the appropriate electric inspection authority,
or electrician, as appropriate.

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User
Guide
ix
The LOAD NUMBER (LN) assigned to each terminal device denotes the percentage of
the total load to be connected to a telephone loop which is used by the device, to prevent
overloading. The termination on a loop may consist of any combination of devices,
subject only to the requirement that the total of the load numbers of all the devices does
not exceed 100.

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User
Guide
x
TABLE OF CONTENTS Page
1.0 SPECIFICATIONS ............................................................................... 1
1.1 Technical Specifications..................................................................... 1
1.2 Summary of models and descriptions (LP004A Series):........................ 7
2.0 INTRODUCTION ................................................................................. 8
2.1 Inspecting the Package and the Product............................................... 8
2.2 Product Description (LP004A Series) ................................................. 9
2.3 Black Box LP004A with four (RJ-45) Copper ports ......................... 14
2.4 Black Box LP004A-Series, with four (RJ-45) Copper ports............. 17
2.5 Frame Buffering and Latency............................................................ 18
2.6 Features and Benefits......................................................................... 21
2.7 Applications for LP004A Series Power Over Ethernet Switch(PoE)23
3.0 INSTALLATION................................................................................. 27
3.1 Locating the PoE Switch Unit............................................................ 27
3.2 LE1505-RACK for Rack Mounting of LP004A Series Switches...... 28
3.3 LH1505P-RACK for Rack MountPower Over Ethernet Switch(PoE)29

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User
Guide
v
3.4 DIN-Rail mounting option................................................................. 31
3.5 Power Requirement for Black Box LP004A Power Source Switch.. 32
3.6 Powering the LP004A Series (DC internal) with –48VDC power input33
3.7 LP004A , DC-powered, -48VDC Installation................................... 35
3.8 Connecting Ethernet Media ............................................................... 36
3.8.1 Connecting Twisted Pair (RJ-45, CAT 3 or CAT 5) ................. 37
3.8.2 Connections to NICs which support Auto-Neg RJ-45 ports...... 38
4.0 OPERATION....................................................................................... 39
4.1 Dual-Speed Functionality, and Switching ......................................... 39
4.2 Auto-cross (MDIX), Auto-negotiation and Speed-sensing................ 41
4.3 Dual LEDs, Front-panel and side-panel (LP004A Series)............... 42
5.0 TROUBLESHOOTING...................................................................... 43
5.1 Before Calling for Assistance............................................................ 44
5.2 When Calling for Assistance ............................................................. 45
5.3 Return Material Authorization (RMA) Procedure............................. 47

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User
Guide
v
Revisions.
Rev A 01/06: Initial release of this user manual for LP004A Power over
Ethernet (PoE) Switch

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User Guide
1
1.0 SPECIFICATIONS
1.1 Technical Specifications
Ports Performance
When a port is operating at 100Mbps:
Data Rate: 100Mbps
When a port is operating at 10 Mbps:
Data Rate: 10 Mbps
Network Standards
100Mb: Ethernet IEEE 802.3u, 100BASE-TX, 100BASE-FX
10 Mb: Ethernet IEEE 802.3, 10BASE-T
Auto-sensing for speed: IEEE 802.3u
Packet-Processing Between Domains
Filter and Forward Rate from 100Mbps 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: 2K address table
Address buffer age-out time: 300 sec.

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User Guide
2
Packet buffers memory: 128KB, dynamically shared on all domains
Latency (not including packet time): 100 to 10 Mbps: 5µs
10 to 100Mbps: 15µs
Path Delay Value: 50 BT on all ports
Maximum Ethernet Segment (or Domain) Lengths
10BASE-T (Unshielded twisted pair) - 100 m (328 ft)
100BASE-TX (CAT 5 UTP) - 100 m (328 ft)
Operating Environment :
Ambient Temperature ratings
LP004A: -40ºF to 167ºF (-40ºC to 75ºC) Long term per agency tests (UL).
-40ºF to 212ºF (-50ºC to 100ºC) Short term per IEC Type tests.
Storage Temperature,
All models: -40ºF to 185ºF (-40ºC to 85ºC)
Cold Start:
LP004A to -40ºC
Ambient Relative Humidity: 5% to 95% (non-condensing)

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User Guide
3
Altitude (All models): -200 to 50000ft. (-60 – 15,000 m)
Conformal Coating (optional) for humidity protection
Note: H and P models are designed for NEBS compliance, including, vibration, shock and
altitude.
Packaging:
Enclosure: Rugged sheet metal (Steel).
Dimensions of the Switch unit:
3.5 in H x 3.0 in W x 1.0 in D (8.9 cm x 7.6 cm x 2.5 cm)
Weight: all models: 4.6 oz. (130g);
Power supply, – office: 5.9 oz (170g)
–H: 5.8 oz (165g)
–P: 7.9 oz (225g)
Cooling Method:
Convection cooled, using the case as a heat sink. The extreme (P) temperature un-
controlled location models have closed cases to withstand dirt and use special thermal
techniques to transfer heat to the outside of the case for cooling.

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User Guide
4
POWER SUPPLY
These products are intended to be supplied by a Listed, Direct Plug-In power unit, marked
“Class 2”, or a Listed ITE Power Supply, marked “LPS”, which has suitably rated output
voltage (i.e. 9vdc, 12vdc, 24vdc, 48vdc), and suitably rated output current (i.e. 100mA to
500mA).When connected to a 48 V centralized dc source, these products shall be provided
with a Listed 5 A DC fuse in the supply circuit.
AC POWER SUPPLY ( using an external power adapter):
(OPTIONAL) LP004A have an (8-15)VDC output with 6ft long cord and a 2.5mm center
+ve jack. The power supplies are temperature rated to match the PoE Switch ratings.
NOTE- An external power adaptor is optional, is not included with unit, and must be
ordered separately if desired for convenience such as bench-testing. It is only used for
powering the unit to act as a switch, and does not provide power to any PoE devices
attached for the application.
Temperature un-controlled Extreme Ratings (-40 to 75°C)
All models. Outdoor temperature rated. Unit takes -12vdc, 2Amps, 6 watts

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User Guide
5
DC POWER Input : built-in terminal block for +, -,
ground, -48V DC input (range of 36 to 60V DC). The
Direct DC power input floats. User may ground either “+”
or “-” if desired.
Power Consumption: 6 watts for the unit, up to 60 watts (30 to 40 typical) for attached
PoE devices. See Section 3.6.
Note 1: The optional 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.
Port Connectors:
Four RJ-45 Ports: support 100BASE-TX and 10BASE-T with auto-cross (MDIX).
They are shielded 8-pin female connectors for shielded (STP) and unshielded
(UTP) Cat 3, 4, 5 cable.
LED Indicators (Dual: front and top)
POWER: Steady ON when power applied
10/100: Steady ON for 100Mbps; OFF for 10 Mbps

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User Guide
6
LK/ACT: Steady ON for LINK (LK) with no traffic, BLINKING indicates
port is transmitting / receiving (ACT).
F/H: Steady ON for full-duplex, OFF for half-duplex
Mounting options
Metal mounting clips for panel mounting: included
DIN-Rail mounting option: Model # DIN-RAIL MC2 (see Section 3.4)
Rack-mount option: LE1505-RACK, (see Section3.2/3.3)
Mean Time Between Failure (MTBF)– over15 years, Telcordia (Bellcore) Method
Agency Approvals and Standards Compliance:
UL Listed (UL 60950), cUL, CE, Emissions meets FCC Part 15 Class A.
NEBS L3 and ETSI compliant.
IEEE P1613 Env. Std for Electric Power Substations
NEMA TS-2 and TEES for traffic control equipment
Designed for UL 2043 above-the-ceiling installation
IEC61850 EMC and Operating Conditions Class C Power Substations

BLACK BOX®Power Over Ethernet Switch(PoE) Installation and User Guide
7
1.2 Summary of models and descriptions (LP004A Series):
LP004A-48VDC = four 10/100 RJ-45 ports PoE Switch., premium-rated PoE Switch, rated for un-
controlled environments. All four RJ-45 ports support power source PoE per the IEEE 802.3af
standard. Includes integral -48V DC terminal block for power unit.
Accessories
Optional AC power adapter as noted above
LE1505-RACK = 19” Rack-mount tray for LP004A-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 LP004A Series Switch,
See Section 3.4. Conformal Coating (for high humidity and “tropical” applications) - request quote.
BLACK BOX®, Corporation. reserves the right to change specifications, performance
characteristics and/or model offerings without notice.