HIGH SPEED ETHERNET EXTENDER
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1. General Information
Thank you for your purchase of this Black Box product. If any questions arise
during installation or use of the unit, contact Black Box Tech Support at (724)
746-5500.
1.1 Features
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Variable rate ethernet extender - Easy to configure
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Auto-MDIX Ethernet
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Configurable 10/100, Full/Half, and Auto-Negotiating Ethernet
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Extends network connections up to 5,500 ft (1.6 km) over 2-wire 24-AWG
unconditioned lines
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Auto-Rate line rates up to 100 Mbps downstream/70 Mbps upstream
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Symmetric or asymmetric settings via DIP switch
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Transparent operation
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LED indicators for Power, Link, Ethernet Link & Activity, and Remote/Local
1.2 Description
The Black Box LB401A Ethernet Extenders provide high-speed LAN connec-
tions between peered Ethernet LANs, remote PCs, or any other network enabled
10/100Base-T device.
Operating in pairs, one LB401A is configured as the (L) Local unit located at one
end of the LAN extension and the other LB401A is configured as the (R) Remote
unit at the other end. The LB401A is configured as a L or R via the switch on the
bottom of the unit. These units can automatically forward LAN broadcasts, mul-
ticasts, and frames across a 2-wire voice-grade twisted-pair link. The data is
passed transparently (unmodified) through the 2173s. The 2173s automatically
add and delete MAC addresses, only passing packets across the LINE link that
are meant for the remote peered LAN.
Summary of Contents for LB401A
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