Configurations
18
BNC Bus
Bussing of the AT-3012SL, 3016SL, 3024SL multiport repeater is another
possibility. You can accommodate more nodes on your network if you connect
the repeaters through the BNC network port. Note that the worst case, node
to node, is through only two repeaters; one provides the UTP station linkage
to thinnet, and the second repeater connects thinnet through the BNC bus to
the AUI cable. On 10Base2 thin Ethernet, a maximum of 30 hubs can be
connected, as shown in Figure 12.
Figure 12: Hubs on a Backbone Using BNC Network Port
POWER
10BASE-T PORT ACTIVITY
BNC
STATUS
AUI
10BASE-T NETWORK PORTS
NETWORK UTILIZATION(%)
1 2 3 4 5 6 7 8 9 10 11 12
TERMINATOR
RECEIVING
RECEIVING
OFF ON
PARTITION
PARTITION
MDI
MDI-X
1 2 3 4 5 6 7 8 9 10 11 12
RECEIVING LINK
X X X X X X X X X X X
1
1
1
1
2
2
2
2
3
3
3
3
6
6
6
6
COLLISION
COLLISION
1 2 4 8 16 32 64 84+%
ACTIVITY
COLLISION
POWER
IEEE 802.3
/ETHERNET
1
0BASE-
T
MULTIPORT REPEATER
POWER
10BASE-T PORT ACTIVITY
BNC
STATUS
AUI
10BASE-T NETWORK PORTS
NETWORK UTILIZATION(%)
1 2 3 4 5 6 7 8 9 10 11 12
TERMINATOR
RECEIVING
RECEIVING
OFF ON
PARTITION
PARTITION
MDI
MDI-X
1 2 3 4 5 6 7 8 9 10 11 12
RECEIVING LINK
X X X X X X X X X X X
1
1
1
1
2
2
2
2
3
3
3
3
6
6
6
6
COLLISION
COLLISION
1 2 4 8 16 32 64 84+%
ACTIVITY
COLLISION
POWER
IEEE 802.3
/ETHERNET
1
0BASE-
T
MULTIPORT REPEATER
POWER
10BASE-T PORT ACTIVITY
BNC
STATUS
AUI
10BASE-T NETWORK PORTS
NETWORK UTILIZATION(%)
1 2 3 4 5 6 7 8 9 10 11 12
TERMINATOR
RECEIVING
RECEIVING
OFF ON
PARTITION
PARTITION
MDI
MDI-X
1 2 3 4 5 6 7 8 9 10 11 12
RECEIVING LINK
X X X X X X X X X X X
1
1
1
1
2
2
2
2
3
3
3
3
6
6
6
6
COLLISION
COLLISION
1 2 4 8 16 32 64 84+%
ACTIVITY
COLLISION
POWER
IEEE 802.3
/ETHERNET
1
0BASE-
T
MULTIPORT REPEATER
POWER
10BASE-T PORT ACTIVITY
BNC
STATUS
AUI
10BASE-T NETWORK PORTS
NETWORK UTILIZATION(%)
1 2 3 4 5 6 7 8 9 10 11 12
TERMINATOR
RECEIVING
RECEIVING
OFF ON
PARTITION
PARTITION
MDI
MDI-X
1 2 3 4 5 6 7 8 9 10 11 12
RECEIVING LINK
X X X X X X X X X X X
1
1
1
1
2
2
2
2
3
3
3
3
6
6
6
6
COLLISION
COLLISION
1 2 4 8 16 32 64 84+%
ACTIVITY
COLLISION
POWER
IEEE 802.3
/ETHERNET
1
0BASE-
T
MULTIPORT REPEATER
Coaxial Ethernet (10BASE5)
Ethernet
Transceiver
AUI Cable
50
Ω
Terminator "ON"
50
Ω
Terminator "OFF"
50
Ω
Terminator "OFF"
50
Ω
Terminator "ON"
12 UTP Segments
12 UTP Segments
12 UTP Segments
12 UTP Segments
BNC-T Connector