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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
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