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UTP/FTP/STP Cabling Information
Table 2-2 details the accepted UTP/FTP/STP cables for the 25.6 Mbps ATM ports.
Table 2-2. UTP/FTP/STP Cabling Details
Cable
Type
Impedance Category Trunk
Attenuation
@ 100 MHz
Patch
Attenuation
@ 100 MHz
RFI
Class
UTP-5 100 ohm 5 / Class D 22db MAX /
100m
33db MAX /
100m
A
FTP/SFTP 100 ohm 5 / Class D 22db MAX /
100m
33db MAX /
100m
B
FTP/SFTP 120 ohm 5 / Class D 17db MAX /
100m
25db MAX /
100m
B
STP 150 ohm IBM
Cabling
IBM type
1/1A
12.3db MAX
/ 130m
IBM type
6/6A
18.4db MAX
/ 130m
B
Legend:
UTP-5 Unshielded Twisted Pair (Category 5)
FTP Foiled Twisted Pair
SFTP Screened and Foiled Twisted Pair
STP Shielded Twisted Pair
TRUNK rigid cable
PATCH flexible cable
Chapter 2. Installation 2-11