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Network Configurations
Linear Bus Network
The typical network configuration for 10BASE2 networks is a Linear Bus
topology in which nodes are connected via thin coaxial cabling using the BNC
connector. A 50Ω (Ohm) terminator must be attached to each end of the trunk
segment and one of the terminators must be grounded. The maximum cable
length is 185M per segment. To minimize cable-related problems, do not mix
single filament (black PVC jacket) with stranded filament (DEC grey) coaxial
cables on the same network.
Thin Ethernet Coax Cable
50-Ohm Terminator
on last Node
Fig. 5. Linear Bus Connection
Horizontal Cascading
The EtheRx hubs can be horizontally cascaded to other hubs as long as the
Ethernet 5-4-3 Rule is met. This connection can be made through the BNC
port, AUI port, or one of the UTP ports. To cascade to another hub, use the
last UTP port which has a cascade switch to support either straight-thru or
crossover cable types. Figure 6 below is an example of horizontal cascading
using the KNE24TP/RS under the Ethernet 5-4-3 rule.
Slick-Stack Ethernet Hub
1
2
3
4
UTIL %
PWR
AUI BNC
COLL %
13 14 15 16
Segment 3
1
2
3
4
5
6
7
8
KNE24TP/RS
2
3
4
5
6
7
8
Slick-Stack Ethernet Hub
LINK / ACT / PARTITION
8
1
2
3
4
5
6
7
8
9 10 11 12
UTIL %
PWR
AUI BNC
COLL %
13 14 15 16
17 18 19 20
21 22 23 24
13
14
15
16
17
18
19
20
Segment 2
1
2
3
4
5
6
7
8
KNE24TP/RS
Slick-Stack Ethernet Hub
LINK / ACT / PARTITION
1
2
3
4
5
6
7
8
9 10 11 12
UTIL %
PWR
AUI BNC
13 14 15 16
17 18 19 20
21 22 23 24
COLL %
13
14
15
16
17
18
19
20
Segment 1
Fig. 6. Horizontal Cascading
KNE24TP/RS User's Guide - Rev. A01
PORT #16 OR PORT #24
CASCADE CONFIGURATION
BNC
STACK-IN STACK-OUT
For cascading to another MDI-X
hub port using straight-thru cable.
For connection to workstation NIC
using cross-over cable.
For cascading to another MDI-X
hub port using cross-over cable.
For connection to workstation NIC
using straight-thru cable.
50-Ohm Grounded
Terminator
1
2
3
4
5
6
7
8
9
10
11
12
KNE24TP/RS
LINK / ACT / PARTITION
CABLE TYPE
5
6
7
8
9 10 11 12
17 18 19 20
21 22 23 24
13
14
15
16
17
18
19
20
21
22
23
24
CASCADE
Segment 4
9
10
11
12
1
2
3
4
KNE24TP/RS
Slick-Stack Ethernet Hub
LINK / ACT / PARTITION
CABLE TYPE
1
2
3
4
5
6
7
8
9 10 11 12
UTIL %
PWR
AUI BNC
COLL %
13 14 15 16
17 18 19 20
21 22 23 24
21
22
23
24
CASCADE
13
14
15
16
Segment 5
9
10
11
12
CABLE TYPE
21
22
23
24
CASCADE
Kingston Technology Company
11
100-240VAC 50-60HZ 1A
1%
Green
ON
UTILIZATION % - Bar graph indication
EXTERNAL TRANSCEIVER
7%
Green
(in percentage) of the traffic rate in
UTIL %
15%
Green
reference to the 10 Mbps Ethernet
( SQE JUMPER DISABLED)
30%
Amber
bandwidth.
60%
Orange
1%
Amber
COLLISION % - Bargraph indication
7%
Amber
(in percentage) of the packet collision
COLL %
15%
Amber
rate in the network.
30%
Amber
AUI
60%
Red
OFF
5
6
7
8
9
10
11
12
CABLE TYPE
17
18
19
20
21
22
23
24
CASCADE
100M max.
per segment
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