Cabletron Systems switches - Manual (Page 115)

Networking Standards and Limitations A-9
Charts and Tables
Token Ring
Distance Limitations
a. IBM Type 6 cable is recommended for use as jumper cabling only, and should not be used for facility cabling
installations.
Table A-13. Token Ring Maximums
Media Circuitry
Cable
Type
Max # of Stations Max Lobe Length
4 Mbps 16 Mbps 4 Mbps 16 Mbps
STP active IBM Types 1, 2 250 250 300 m 150 m
IBM Types 6, 9
a
250 136 200 m 100 m
passive IBM Types 1, 2 250 250 200 m 100 m
IBM Type 9 250 136 133 m 66 m
UTP active Category 5 150 150 250 m 120 m
Categories 3, 4 150 150 200 m 100 m
passive Category 5 100 100 130 m 85 m
Categories 3, 4 100 100 100 m 60 m
Fiber Optics active Multimode 250 250 2000 m 2000 m
Single Mode 250 250 2000 m 2000 m