Black Box LMC5220A, LMC5221A, LMC5222A, LMC5223A, LMC5224A Operation Manual

1000 Park Drive • Lawrence, PA 15055-1018 USA

TEL: [phone] • FAX: [phone]

E-MAIL: [e-mail]

WEB: http://www.blackbox.com

© 2006 Black Box. All rights reserved.

The information in this document is subject to change without notice. Black Box assumes no responsibility for any errors
that may appear in this document. Products are a trademark of Black Box. Other brands or product names may be
trademarks and are the property of their respective companies.

Document Number 50-80102BB-00 A0 February 2006

VDSL LAN Extender Products

LMC5220A (Standalone Set, AC)
LMC5221A (Standalone, AC, CO Unit)
LMC5222A (Standalone, AC, CPE Unit)
LMC5223A (Standalone Set, Multi-Power)
LMC5224A (Standalone, Multi-Power, CO Unit)
LMC5225A (Standalone, Multi-Power, CPE Unit)

Operation Manual

Notes:

12

Notes:

11

Table of Contents

About the LAN Extenders . . . . . . . . . . . . . . . . . . . . . . . .1

Getting to Know the LAN Extenders . . . . . . . . . . . . . . . .1

Configuring the LAN Extenders . . . . . . . . . . . . . . . . . . . .2

The 10/100 Twisted Pair Ethernet Port . . . . . . . . . . . . . .3

The VDSL Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

DC Power Supply Wiring Instructions . . . . . . . . . . . . . . .7

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Black Box Customer Service . . . . . . . . . . . . . . . . . . . . . .8

Fiber Optic Cleaning Guidelines . . . . . . . . . . . . . . . . . . .8

Electrostatic Discharge Precautions . . . . . . . . . . . . . . . . .9

DC Power Supply Precautions . . . . . . . . . . . . . . . . . . . .9

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Federal Communications Commission

Radio Frequency Interference Statement . . . . . . . . . . . .10

European Directive 2002/96/EC (WEEE) requires
that any equipment that bears this symbol on
product or packaging must not be disposed of
with unsorted municipal waste. This symbol indi­cates that the equipment should be disposed of
separately from regular household waste. It is the
consumer's responsibility to dispose of this and
all equipment so marked through designated
collection facilities appointed by government or
local authorities. Following these steps through
proper disposal and recycling will help prevent
potential negative consequences to the environ­ment and human health. For more detailed
information about proper disposal, please con­tact local authorities, waste disposal services, or
the point of purchase for this equipment.

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10

About the LAN Extenders

LAN Extenders enable LAN and campus network managers and service
providers to use an existing phone-grade wiring plant to extend 10 Mbps
and 100 Mbps Ethernet twisted pair interfaces by using Ethernet over VDSL;
the 100m distance limitation of twisted pair data cabling is no longer a chal­lenge.

Designed with VDSL (Very high-bit-rate Digital Subscriber Line) technolo­gy, LAN Extenders allow the transmission of data over sub-standard CAT3
and other telephone cabling to achieve substantially longer distances. As a
media and protocol converter, LAN Extenders feature the ability to transfer
data both symmetrically and asymmetrically. You can also configure band­width to ensure users are limited to a specified amount rather than having
access to the maximum achievable. LAN Extenders deploy in pairs — one
at the central office (CO) and another at the customer premises (CPE).

Getting to Know the LAN Extenders

The LEDs

LAN Extenders feature several diagnostic LEDs. The LED
functions are as follows:

AN Glows amber when Auto-Negotiation is enabled.
DPX Glows amber when unit is operating in Full-Duplex.
ERRS Glows amber when errors are detected.
Sync Glows amber when a link is established on the VDSL Port.
100 Glows amber when Ethernet port is operating at 100 Mbps.
LNK Glows amber when a link is established on the Ethernet Port.
XMT Blinks amber when port transmits data.

RCV Blinks amber when port receives data.

The Ports

The LAN Extenders include:

• One VDSL port with an RJ-11 connector

• One 10/100 twisted pair Ethernet port with an RJ-45 con-

nector

NOTE

The LED functions are the same on both the

CO and CPE modules.

Warranty

Contact Black Box for warranty information.

Federal Communication Commission Radio
Frequency Interference Statement

This equipment has been tested and found to comply with the limits
for a Class B computing device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harm­ful interference when the equipment is operated in a commercial envi­ronment. This equipment generates, uses and can radiate radio frequen­cy energy and, if not installed and used in accordance with the instruc­tion manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harm­ful interference in which the user will be required to correct the interfer­ence at his own expense.

Any changes or modifications not expressly approved by the manufac­turer could void the user's authority to operate the equipment.

The use of non-shielded I/O cables may not guarantee compliance
with FCC RFI limits. This digital apparatus does not exceed the Class B
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 classe B pre­scrites dans le Règlement sur le brouillage radioélectrique publié par le
ministère des Communications du Canada.

NOTE

Use only cross-over cables for the LAN Extender Module’s Ethernet Port.

9

2

Electrostatic Discharge Precautions

Electrostatic discharge (ESD) can cause damage. Always observe the fol-

lowing precautions when installing or handling any board assembly.

1) Do not remove unit from its protective packaging until you're ready to

install it.

2) Wear an ESD wrist grounding strap before handling any component. If
you do not have a wrist strap, maintain grounded contact with the system unit
throughout any procedure requiring ESD protection.

WARNING! Integrated circuits and fiber optic components are extreme­ly susceptible to electrostatic discharge damage. Do not handle these com­ponents directly unless you are a qualified service technician and use tools
and techniques that conform to accepted industry practices.

3) Hold boards by the edges only; do not touch the electronic compo-

nents or gold connectors.

4) After removal, always place the boards on a grounded, static free sur­face, ESD pad or in a proper ESD bag. Do not slide the board over any sur­face.

DC Power Supply Precautions

The following precautions should be observed when installing chassis

with DC power supplies.

1) Check nameplate ratings to assure there is no overloading of supply
circuits that could have an effect on overcurrent protection and supply
wiring.

2) When installing 48V DC rated equipment, it must be installed only per
the following conditions:

A) Connect the equipment to a 48V DC supply source that is electri­cally isolated form the alternating current source. The 48V DC source
is to be connected to a 48V DC SELV source.

B) Input wiring to terminal block must be routed and secured in such
a manner that it is protected from damage and stress. Do not route
wiring past sharp edges or moving parts.

C) A readily accessible disconnect device, with a 3mm minimum con­tact gap, shall be incorporated in the fixed wiring.

3) Grounding: reliable earthing of this equipment must be maintained.
Particular attention should be given to supply connections when connect­ing to power strips, rather than direct connections to the branch circuit.

Configuring the LAN Extenders

Before connecting a LAN Extender to your network, configure a LAN
Extender for its hardware-selectable features via DIP switches located at posi­tion S1. Refer to the diagram and switch chart below for settings.

F

EATURESWITCH

F

UNCTION

D

EFAULT

AN S1

Enables/disables Auto-Negotiation.

ON

Flow
Control

S3

Enables/disables Flow Control.

OFF

Selective
Advertising

S4

Used with Auto-Negotiation to advertise a specific
speed and duplex as determined by S5 and S6

OFF

Speed S5

When ON, the LAN Extender Module operates at
100 Mbps.
When OFF, the LAN Extender Module operates at
10 Mbps.

OFF

Duplex S6

When ON, the LAN Extender Module operates at
Full-Duplex.
When OFF, the LAN Extender Module operates at
Half-Duplex.

OFF

Host S8

Sets the CO module as a HOST, allowing manage­ment of the CPE (remote) module.
This switch is N/A for the CPE module; must be OFF.

ON

(CO module)

OFF

(CPE module)

Link Fault
Propagate

S9

Enables/disables Link Fault Propagate;
This switch is N/A for the CPE module; must be OFF.

OFF

S2 and S7 are reserved for future use — DO NOT CHANGE

S5 and S6 are only applicable if AN is set to OFF, or when using Selective Advertising.

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8

Multi-Power Chassis

DC Input Voltage:

±7 to ±50 VDC on DC terminal
5 to 20 VDC on DC jack

AC Wall Adapter:

100/240 ±10% VAC input, 5V DC output, 1A max.

Operating Temperature:

-40° to +158°F (-40° to +70°C) excluding AC wall adapter;
with AC wall adapter 32° to 122°F (0° to 50°C)

NOTE: The stated temperature (-40° to +70°C) for the Multi-Power
chassis is only applicable when used with modules that also accommo­date the same operating temperature.

Storage Temperature:

-49° to 185°F (-45° to +85°C)

Humidity:

5 – 90% (non-condensing); 0 – 10,000 ft. altitude

Dimensions:

0.90”H x 4.30” L x 4.00”D (2.29cm H x 10.92cm L x 10.16cm D)

Black Box Customer Service

Order toll-free in the U.S.: Call 877-877-BBOX

(outside U.S. call 724-746-5500)
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: [e-mail]

CO as Host for Remote Management of CPE

Configuring the CO LAN Extender as a Host allows remote management
of the CPE LAN Extender. Configure the CO LAN Extender as a Host by set­ting the Dip Switch 8 to the ON position. The VDSL ports must be con­nected and a link established prior to managing the remote unit.

The 10/100 Twisted Pair Ethernet Port

The twisted pair Ethernet port on the LAN Extenders (hereon referred to
as the Ethernet port) auto-negotiates for speed and duplex mode. These also
provide the option of manually setting the speed and duplex mode if the
connected devices do not have the ability to auto-negotiate, or when Auto-
Negotiation is not preferred.

Auto-NNegotiation

The LAN Extenders ship from Black Box with Auto-Negotiation enabled
on the Ethernet port. In this mode, the Ethernet port negotiates for speed
and duplex (i.e. the LAN Extender autosenses 10 Mbps Full-Duplex, 10
Mbps Half-Duplex, 100 Mbps Full-Duplex or 100 Mbps Half-Duplex with
Flow Control). Configure Auto-Negotiation on the LAN Extenders by adjust­ing the DIP switch.

Selective Advertising

Selective Advertising, when used in combination with Auto-Negotiation,
advertises only the configured speed and duplex mode for the Ethernet port.
If Selective Advertising and Auto-Negotiation are both switched ON, the
Ethernet port’s speed (10 or 100 Mbps) and Duplex mode (FDX or HDX) can
be manually configured. Configure the Ethernet port for Selective
Advertising by setting Dip Switches 4 and 5 to the ON position, then select­ing the speed and duplex.

NOTE

If a specific speed and/or duplex mode is required, use Selective Advertising rather
than Force Mode, when connecting to devices that ONLY auto-negotiate. Selective
Advertising is NOT an option when disabling Auto-Negotiation

7

4

DC Power Supply Wiring Instructions

The following diagram shows wiring configurations for 48 VDC power
supplies:

Specifications

AC Chassis

Environmental:

Operating Temperature: 32° - 122° F (0° - 50° C)
Storage Temperature: 20° - 160° F (-20° - 70° C)
Humidity: 5 - 95% (non-condensing)

Electrical:

AC Input Load: 100-240 VAC ±10%, 50/60 Hz, 1A max.

Dimensions:

1 Slot: 1.55”H x 4.75”L x 7.31”D (3.94cm H x 12.07cm L x 18.57cm D)

Heat Generation:

51 BTU/hr. maximum

Forcing the Duplex Mode

The LAN Extenders’ Ethernet port can be manually configured for either
Half- or Full-Duplex operation. Before manually setting the duplex mode,
disable Auto-Negotiation (Set Dip Switch 1 to OFF.)

• Configure the Ethernet port for Full-Duplex by setting Dip Switch 6
to the ON position (Default).

• Configure the Ethernet port for Half-Duplex by setting Dip Switch 6
to the OFF position.

Forcing the Speed

The LAN Extenders’ Ethernet port can be manually configured for 10 or
100 Mbps operation. Before manually setting the speed, disable Auto­Negotiation (Set Dip Switch 1 to the OFF position.)

• Configure the Ethernet port for 10 Mbps operation by setting
Dip Switch 5 to the OFF position.

• Configure the Ethernet port for 100 Mbps operation by setting
Dip Switch 5 to the ON position.

Flow Control

Flow Control is used to throttle the END device to avoid dropping pack­ets during network congestion. Full-Duplex Flow Control will Advertise
ONLY in Full-Duplex Mode. Full-Duplex Flow Control functions ONLY if
the link partner (end device) also has Flow Control. Half-Duplex Flow
Control DOES NOT Advertise. Configure the Ethernet port on the LAN
Extenders for Flow Control by setting Dip Switch 3 to the ON position.

Link Fault Propagate

Link Fault Propagate (LFP) is a troubleshooting feature. When LFP is
enabled and the Host CO unit detects that the Remote CPE does not have
a copper link, LFP will disable the Host’s copper transmitter. Configure CO
LAN Extenders for LFP by setting Dip Switch 9 to the ON position. Do not
enable LFP on CPE LAN Extenders.

NOTE

The chasis is protected against mis-wiring. If mis-wired,

the chassis will not function.

5

6

The following chart states the approximate Upstream and Downstream

speeds for Synchronous data rates at various distances.

Negotiation

The LAN Extender units will negotiate upwards to the highest or maxi­mum obtainable synchronous speed. For example at a 2Km distance, the
Upstream and Downstream data rates will each be 10 Mbps. Negotiation
can take up to 30 seconds.

The VDSL Port

The data rate of the 10Base-S VDSL port on a LAN Extender (hereon
referred to as the VDSL port) depends on the distance in use. This includes
bandwidth limiting, via management, of the data rate for various distances.
The following graph illustrates the correlation between the distance and the
speed. The sum of the Upstream and Downstream data rates is fixed by the dis­tance of the application. For example, if an application requires 1.5 Km, there
will be a maximum of 15 Mbps to distribute between the Upstream and
Downstream data rates. If Synchronous data rates are desired, configure 7.5
Mbps for Upstream and 7.5 Mbps for Downstream. Otherwise, speed can be
distributed in any combination between the Upstream and Downstream rates,
making data rates Asynchronous (12.5 Mbps and 2.1; 5 Mbps and 10 Mbps,
etc).

The following chart provides examples of Synchronous and Asynchronous data
rates at various distances.

25 Mbps

MAX

Speed

6.5 Mbps

500

m

10 Mbps

2

Km

MAX Distance

1.5

Km

15 Mbps

20 Mbps

1

Km

1.75
Km

Distance Data Rate Type

Upstream

Data Rate

Downstream

Data Rate

Approx. Total
of Data Rates

500 m Synchronous 12.5 Mbps 12.5 Mbps

25 Mbps

1.5 Km Asynchronous 2.1 Mbps 12.5 Mbps

15 Mbps

2 Km Asynchronous 2.1 Mbps 4.25 Mbps

6.5 Mbps

NOTE

Distances and speeds are approximate and depend on wiring qual­ity and gauge. The actual Ethernet speeds are lower than the
speeds listed due to VDSL overhead (10% overhead). The distances
listed in the chart are less than or equal to the values listed.

Distance Data Rate Type

Upstream
Data Rate

Downstream

Data Rate

Approx. Total
of Data Rates

500 m Synchronous 12.5 Mbps 12.5 Mbps

25 Mbps

1 Km Synchronous 10 Mbps 10 Mbps 20 Mbps

1.5 Km Synchronous 7.5 Mbps 7.5 Mbps

15 Mbps

1.75 Km Synchronous 5 Mbps 5 Mbps 10 Mbps

2 Km Synchronous 3.25 Mbps 3.25 Mbps

6.5 Mbps