Cisco 2851 - Integrated Services Router Kurulum ve Yükseltmeler - Sayfa 18
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Upgrading the Cisco 2821 and Cisco 2851 Fan Unit
Installing the Fan Unit
Follow these steps to install the fan unit.
Before you begin, read the safety warnings as described in the
Note
on page
Lower the fan unit down and onto the chassis floor.
Step 1
Attach fan 1 to the J9 connector on the motherboard. (See number 1 and 2 in
Step 2
Attach fan 2 to the J8 connector on the motherboard. (See number 3 and 4 in
Step 3
Attach fan 3 to the J7 connector on the motherboard. (See number 5 and 6 in
Step 4
The connectors are polarized/keyed to allow easy insertion in one orientation only. Orient the fan
Caution
connectors correctly before you insert them. Incorrect orientation can damage the connector pins.
Figure 7
1
3
5
Step 5
Reinstall the one screw on the front of the chassis. (See number 2 in
Reinstall the three screws on the side of the chassis. (See number 1 in
Step 6
Installing and Upgrading Fans in the Cisco 2821 and Cisco 2851 Series Routers
18
2.
Attaching Fan Cable to the J Connectors
1
2
4
Fan 1
Fan 2
Fan 3
"Safety Warnings and Guidelines" section
3
6
5
2
Fan 1 to J9 connector
4
Fan 2 to J8 connector
6
Fan 3 to J7 connector
Figure 6 on page
Figure 6 on page
Figure
7.)
Figure
7.)
Figure
7.)
17.)
17.)
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