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LAN Master™ TX8
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1
100BASE-TX 8-Port Hub
1. INTRODUCTION
This guide is intended for the system or network administrator
responsible for installing and monitoring a TRANSITION Networks
LAN Master™ TX-8 100BASE-TX 8-Port Hub. A working knowledge
of local area network (LAN) operations, including familiarity with
communications protocols used on interconnected LANs, is
assumed.
The LAN Master™ TX8 Hub
The LAN Master™ TX8 100BASE-TX 8-Port Hub (HB-E-TX-8) is a
Fast Ethernet repeater designed to meet IEEE 802.3u 100BASE-TX
standards.
LAN Master™ TX8 Hub Features
• Eight RJ-45 100BASE-TX ports for Fast Ethernet connectivity
• Port #8 provides LAN Master™ TX8-to-LAN Master™ TX8
MDI/MDI-X uplink option
• 19-inch rack mountable
• Auto partitioning of ports with excessive collisions
• Fully automatic preamble regeneration
• Internal universal input power supply
FAST ETHERNET (IOOBASE-X)
CABLE SPECIFICATIONS
Due to the limited collision domain in 100BASE-X, use the shortest
cables possible to make a connection between any two devices.
Where collisions are not a consideration (full duplex), longer
cable may be possible.
Effective cable distances are determined by ambient RF noise and
by signal loss in the cable. Since fiber has low signal loss/meter
and invulnerability to RF noise, fiber is the preferred medium for
extending distances.
100BASE-FX Cable and Connector Specifications
The physical characteristics of the 100BASE-FX cable must meet or
exceed IEEE 802.3 100BASE-FX specifications.
100BASE-FX CABLE SPECIFICATIONS
Fiber Optic Cable Recommended: 62.5 / 125 µm multimode fiber
Optional: 100 / 140 µm multimode fiber
85 / 125 µm multimode fiber
50 / 125 µm multimode fiber
Fiber Optic Transmitter Power:
Average power: -19.0 dBm
Fiber Optic Receiver Sensitivity:
Average sensitivity: -33.5 dBm
Bit error rate: ≤10
-10
Maximum Cable Distance: 2000 meters (6500 feet)
100BASE-FX CONNECTOR CHARACTERISTICS:
The 100BASE-FX connectors are standard ST connectors.
SC connectors are available.