
Charts and Tables
A-4 Token Ring
Token Ring
Lobe Cable Distances
Trunk Cable Distances
*. IBM Type 6 cable is recommended for use as jumper cabling only, and should not
be used for facility cabling installations.
Media Circuitry
Cable
Type
Max Lobe Length
4 Mbps 16 Mbps
STP
active
IBM Types 1, 2 300 m 150 m
IBM Types 6, 9
*
200 m 100 m
passive
IBM Types 1, 2 200 m 100 m
IBM Type 9 133 m 66 m
UTP
active
Category 5 250 m 120 m
Categories 3, 4 200 m 100 m
passive
Category 5 130 m 85 m
Categories 3, 4 100 m 60 m
Fiber Optics active
Multimode 2000 m 2000 m
Single Mode 2000 m 2000 m
Media
Max Distance
(4 Mbps)
Max Distance
(16 Mbps)
Shielded Twisted Pair 770 m 346 m
Unshielded Twisted Pair
Category 3/4 200 m 100 m
Category 5 250 m 120 m
Fiber Optics (Multimode) 2000 m 2000 m
Fiber Optics (Single Mode) 2000 m 2000 m
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