Switch - Ethernet Hub User Manual

Model 0401
10
1
Ethernet™ Pocket Hub™
1. INTRODUCTION
This guide is intended for the system or network administrator
responsible for installing and monitoring a TRANSITION Networks
0401 Ethernet Pocket Hub. A working knowledge of local area
network (LAN) operations, including familiarity with
communications protocols used on interconnected LANs, is
assumed.
The 0401 Ethernet Pocket Hub
The Model 0401 10BaseT 4-Port Ethernet Hub (E-TBT-HB-0401), is
a compact, low cost, fully functional Ethernet repeater.
When centrally located in a small installation, the 0401 Pocket
Hub can be used to connect up to four terminal devices to a
Ethernet™
Pocket Hub™
4 3 2 1
Power
1
2
3
4
E-TBT-0401
Link/Transmit
networks
TRANSITION
Mpls, MN 55344
Model 0401 Ethernet Pocket Hub
Specifications
Dimensions
4.80" X 2.77" X 0.95" (122mm x 70mm x 24mm)
Environment
Temperature: 0-50°C,
Humidity 10-90%, non condensing,
Altitude 0-10,000 feet.
Cable Specifications
Cable Characteristics
The physical characteristics of the 10BaseT cable must meet or exceed
IEEE 802.3 10BaseT specifications.
10BaseT Cable Specifications
Either shielded or unshielded twisted pair can be used. Level 3 wire or
better is recommended.
• Gauge. . . . . . . . . . . . . . . . . . 26 to 22 AWG
• Attenuation . . . . . . . . . . . . . Less than 11.5 dB @ 5-10 MHz
• Differential Characteristic . . 85 -110 Ω Impedance
@ 10 MHz
• Maximum Distance . . . . . . . 100 Meters (330 Feet)
Segment Distance
Media Maximum Maximum Minimum Maximum
Segment Number Segment Medium Medium
Type MAU/ Length Propagation End to End
Segment (meters) Velocity
†
Propagation
Delay/Segment
10BaseT 2 100
†††
0.59 c 1000
†
c = 3 x 10
8
meters/second
†††
Maximum segment length depends on the cable characteristics.
Ethernet™ Pocket Hub™
TRANSITION
networks
Mpls, MN 55344