LS ELECTRIC iXP2 Series, User Manual

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Chapter 3 Standard Specification
3-7
Type Used frequency (MHz)
Transmission
speed (Mbps)
Purpose
Category 1 Audio frequency 1 Telephone network (2Pair)
Category 2 4 4
Multi pair communications cable
Category 3 16 16
Telephone n Computer network
Category 4 20 20
Speed up the computer network
2) Low-loss communications cable
Category 5 and
Enhanced
Category 5
100 100
1) Digital telephone n Computer
network
2) Low-loss, broadband cable
Note
(1) The categories that are commercially available in Korea and globally are categories 3, 5, En-Cat.5 and CAD.6.
Category 4 is now defunct following the category 5 appearances, and category 7 is a STP structure that is in the
development phase worldwide
(3) Example of category 5, UTP (CTP-LAN5)
Item Unit Value
Conductor resistance
(Max)
Ω/km
93.5
Insulation resistance
(
Min)
MΩ
· km
2,500
or less voltage V/Min AC 500
Characteristic
impedance
Ω (1-100MHz)
100 ± 15
Attenuation
dB/100 m
or less
10 MHz Attenuation
16 MHz
20 MHz
Near-end crosstalk
attenuation
dB/100 m
or less
10 MHz Near-end crosstalk attenuation
16 MHz
20 MHz