19
Chapter 7
Configurations
The illustrations in this chapter provide some examples of possible network
configurations using CentreCOM AT-30xxTR Multiport Repeaters. The
catalog is not meant to be exhaustive and may or may not fit your network’s
requirements. For consistency, the examples show AT-3012TR units, but any
combination of the three models may be used interchangeably.
Backbone
Connection
Figure 14 illustrates connecting an AT-3012TR to a thick Ethernet backbone
supporting 12 10BASE-T Ethernet segments.
Cascade
Cascading of the AT-30xxTR Multiport Repeater is also possible following the
IEEE 802.3 four repeater rule, as shown in Figure 15.
Figure 14: Typical Hub
Configuration
Ethernet
Transceiver
Coaxial Ethernet (10BASE5)
AUI Cable
100 Meters
UTP Cable
wired Pin to Pin
10BASE-T
Transceiver
Workstations (DTEs)
10BASE-T
Transceiver
10BASE-T
Transceiver
10BASE-T
Transceiver
X
X
X
X
X
X
X
X
X
X
X
X
10BASE-T
Transceiver
10BASE-T
Transceiver
10BASE-T
Transceiver
10BASE-T
Transceiver
10BASE-T
Transceiver
10BASE-T
Transceiver
10BASE-T
Transceiver
10BASE-T
Transceiver
1
2
3
4
5
6
7
8
9
10
11
12
X
X
X
X
X
X
X
X
X
X
X
ACTIVITY
COLLISION
POWER
1
2
3
4
5
6
7
8
9
10 11 12
1
2
3
4
5
6
7
8
9
10 11 12
TERMINATOR
OFF
ON
PORT OK
RECEIVING
PORT OK
RECEIVING
PORT OK
RECEIVING
POWER
10BASE-T NETWORK PORTS
10BASE-T PORT ACTIVITY
STATUS
AUI
BNC
1
2
3
6
1
2
3
6
1
2
3
6
1
2
3
6
MDI
MDI-X
IEEE 802.3
/ETHERNET
1
0BASE-
T
MUL
TIPORT REPEA
TER
