Nortel Networks AN/DC manual Linking ANH-8/DC Systems

Installing the ANH-8/DC

When you configure a network with multiple ANH-8/DC (or other repeater/hub) systems, you must comply with the following rules:

•Connect no more than four hubs.

•Make sure that each UTP connection is not longer than 100 meters (109.4 yards).

•If a transceiver is connected to the AUI port, disable the SQE (signal quality error) test function of the transceiver.

Figure 2-10 shows three ANH-8/DC systems connected with straight-through cables.

Power	Console	Boot Run DCM AUI Part	AUI
Fault
Reset		DCD1 DCD2 <LAN> Col

1 2 3 4 5 6 7 8

MDI-X/MDI

MDI-X

Access Node Hub

Partition

1 2 3 4 5 6 7 8

Link

Port 1	Port 1
set for straight-through	to
connection (MDI)	Port 1

Power	Console	Boot Run DCM AUI Part	AUI
Fault
Reset		DCD1 DCD2 <LAN> Col

1 2 3 4 5 6 7 8

MDI-X/MDI

MDI-X

Access Node Hub

Partition

1 2 3 4 5 6 7 8

Link

Port 1	Port 2
set for default (crossover)	to
connection (MDI-X)	Port 1

	Console		1	2	3	4	5	6	7	8
Power		Boot Run DCM AUI Part	AUI
			MDI-X/MDI
Fault
Reset		DCD1 DCD2 <LAN> Col					MDI-X

Port 1

set for straight-through

connection (MDI)

Figure 2-10. Linking ANH-8/DC Systems

Access Node Hub

Partition

1 2 3 4 5 6 7 8

Link

AN0046A

Figure 2-11 shows an ANH-8/DC linked with two other Ethernet hubs. A UTP cable connects each MDI port to an MDI-X port on another hub.

312410-A Rev 00 2-15