Cabletron Systems bridges Manuel D’Utilisation
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.
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