Class Ii Repeaters - 3Com 100 TX User Manual

3-10 C 3: M
HAPTER AKING

Class II Repeaters

100 meters maximum
FMS 100-TX H C
UB ONNECTIONS
A Class II repeater is a hub with internal delay such that no more than two
hubs can exist between any two DTE devices within a single collision domain
when two maximum-length cable segments are used. The Class II network
topology allows two hubs (or hub stacks) to exist between any two end
stations.
Figure 3-9 shows a two-repeater collision domain containing two hubs
between two end stations that are located 205 meters apart. This is the total
allowable span for UTP cable.
205 meters: maximum UTP distance
5 meters maximum
100BT STATUS UNIT 3C12345 ®
ACTIVITY FAN FAIL CLS2
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x
LINE OVERTEMP CLS1
PARTITION COLLISION PWR
1 2 3 4 5 6 7 8 9 10 11 12 13
100BT STATUS UNIT 3C12345 ®
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x ACTIVITY FAN FAIL CLS2
LINE OVERTEMP CLS1
PARTITION COLLISION PWR
1 2 3 4 5 6 7 8 9 10 11 12 13
100BT STATUS UNIT 3C12345 ®
ACTIVITY FAN FAIL CLS2
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x
LINE OVERTEMP CLS1
PARTITION COLLISION PWR
1 2 3 4 5 6 7 8 9 10 11 12 13
100BT STATUS UNIT 3C12345 ®
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x ACTIVITY FAN FAIL CLS2
LINE OVERTEMP CLS1
PARTITION COLLISION PWR
1 2 3 4 5 6 7 8 9 10 11 12 13
100BT STATUS UNIT 3C12345 ®
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x ACTIVITY FAN FAIL CLS2
LINE OVERTEMP CLS1
PARTITION COLLISION PWR
1 2 3 4 5 6 7 8 9 10 11 12 13
100BT STATUS UNIT 3C12345 ®
ACTIVITY FAN FAIL CLS2
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x
LINE OVERTEMP CLS1
PARTITION COLLISION PWR
1 2 3 4 5 6 7 8 9 10 11 12 13
100BT STATUS UNIT 3C12345 ®
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x ACTIVITY FAN FAIL CLS2
LINE OVERTEMP CLS1
PARTITION COLLISION PWR
1 2 3 4 5 6 7 8 9 10 11 12 13
100BT STATUS UNIT 3C12345 ®
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x ACTIVITY FAN FAIL CLS2
LINE OVERTEMP CLS1
PARTITION COLLISION PWR
1 2 3 4 5 6 7 8 9 10 11 12 13
Class II configuration
Figure 3-9 Class II Hubs
LinkBuilder
R EPEATER 100BT STATUS UNIT
ACTIVITY
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x
LINE
PARTITION
1 2 3 4 5 6 7 8 9 10 11 12 13
LinkBuilder
R EPEATER 100BT STATUS UNIT
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x ACTIVITY
LINE
PARTITION
1 2 3 4 5 6 7 8 9 10 11 12 13
LinkBuilder
R
EPEATER 100BT STATUS UNIT
ACTIVITY
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x
LINE
PARTITION
1 2 3 4 5 6 7 8 9 10 11 12 13
LinkBuilder
R EPEATER 100BT STATUS UNIT
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x ACTIVITY
LINE
PARTITION
1 2 3 4 5 6 7 8 9 10 11 12 13
LinkBuilder
R EPEATER 100BT STATUS UNIT
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x ACTIVITY
LINE
PARTITION
1 2 3 4 5 6 7 8 9 10 11 12 13
LinkBuilder
R
EPEATER 100BT STATUS UNIT
ACTIVITY
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x
LINE
PARTITION
1 2 3 4 5 6 7 8 9 10 11 12 13
LinkBuilder
R EPEATER 100BT STATUS UNIT
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x ACTIVITY
LINE
PARTITION
1 2 3 4 5 6 7 8 9 10 11 12 13
LinkBuilder
R EPEATER
100BT STATUS UNIT
1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x ACTIVITY
LINE
PARTITION
1 2 3 4 5 6 7 8 9 10 11 12 13
100 meters maximum
LinkBuilder
3C12345 ® R EPEATER
FAN FAIL CLS2
OVERTEMP CLS1
COLLISION PWR
LinkBuilder
3C12345 ® R EPEATER
FAN FAIL CLS2
OVERTEMP CLS1
COLLISION PWR
LinkBuilder
R
3C12345 ® EPEATER
FAN FAIL CLS2
OVERTEMP CLS1
COLLISION PWR
LinkBuilder
3C12345 ® R EPEATER
FAN FAIL CLS2
OVERTEMP CLS1
COLLISION PWR
LinkBuilder
3C12345 ® R EPEATER
FAN FAIL CLS2
OVERTEMP CLS1
COLLISION PWR
LinkBuilder
R
3C12345 ® EPEATER
FAN FAIL CLS2
OVERTEMP CLS1
COLLISION PWR
LinkBuilder
3C12345 ® R EPEATER
FAN FAIL CLS2
OVERTEMP CLS1
COLLISION PWR
LinkBuilder
R EPEATER
3C12345 ®
FAN FAIL CLS2
OVERTEMP CLS1
COLLISION PWR