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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 chal-
lenge. 

Designed with VDSL (Very high-bit-rate Digital Subscriber Line) technolo-

gy, 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 band-
width 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

N O T E

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 harm-
ful interference when the equipment is operated in a commercial envi-
ronment.  This equipment generates, uses and can radiate radio frequen-
cy energy and, if not installed and used in accordance with the instruc-
tion manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harm-
ful interference in which the user will be required to correct the interfer-
ence at his own expense.

Any changes or modifications not expressly approved by the manufac-

turer 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 pre-
scrites dans le Règlement sur le brouillage radioélectrique publié par le
ministère des Communications du Canada.

N O T E

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

Содержание LMC5220A

Страница 1: ...y 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 M...

Страница 2: ...Notes 12 Notes ...

Страница 3: ...hat any equipment that bears this symbol on product or packaging must not be disposed of with unsorted municipal waste This symbol indi cates 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 Followin...

Страница 4: ...with an RJ 11 connector One 10 100 twisted pair Ethernet port with an RJ 45 con nector N O T E 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 o...

Страница 5: ...nnected 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 con tact gap shall be incorporated in the fixed wiring 3 Grounding reliable earthing of this equipment must be maintained Particular a...

Страница 6: ...isted 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 N Negotiation The LAN Extenders ship from Black Box...

Страница 7: ...re manually setting the speed disable Auto Negotiation 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 pack ets during network congestion Full D...

Страница 8: ...d 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 ...

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