Service manual

Maintenance Analysis Procedures
3-23
Maintenence Analysis Procedures
a. Ensure an RJ-45 Ethernet cable connects the product to a hub. If
not, connect the cable as directed by the customer.
b. Ensure an RJ-45 Ethernet cable connects the management
server to a hub. If not, connect the cable as directed by the
customer.
c. Ensure Ethernet cables are not damaged. If damaged, replace
the cables.
Was the maintenance action successful?
NO YES
↓ The management server connection is restored. Exit MAP.
9
Does the configuration use multiple daisy-chained Ethernet hubs?
YES NO
↓ Go to step 11.
10
Verify hubs are correctly daisy-chained.
a. Top hub - As shown in Figure 3-1 (1), ensure an RJ-45 Ethernet
cable connects to port 24 and the medium-dependent interface
(MDI) switch is set to MDI (in).
b. Middle hub - As shown in Figure 3-1 (2), ensure the cable from
the top hub connects to port 12, the cable from the bottom hub
connects to port 24, and the MDI switch is set to MDI (in).
c. Bottom hub - As shown in Figure 3-1 (3), ensure the cable from
the middle hub connects to port 12 andtheMDIswitchissetto
MDIX (out).