Cisco WS-C2950-24 Hardware Installation Guide - Page 190
Replacing the Power Supply on the Cisco 3900 Series Routers,
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250908 Replacing Power Supplies and Redundant Power Supplies Chapter 5 Installing and Upgrading Internal Modules and FRUs Figure 5-30 . Cisco 2921 and 2951 Power Supply Components 2 3 4 1 SYS ACT SYS PWR1 AUX PWR1 SYS PWR2 AUX PWR2 Cisco 2900 Series 5 5 1 Fan tray and bezel assembly 3 Power supply fastening screws (2) 5 RPS or secondary power supply fastening screws (2) 2 Power supply 4 (Optional) RPS adapter Replacing the Power Supply on the Cisco 3900 Series Routers Step 1 Read the "Safety Warnings" section on page 5-2 section and disconnect the power supply before you perform any module replacement. 5-38 Cisco 2900 Series and 3900 Series Hardware Installation Guide OL-18712-03
5-38
Cisco 2900 Series and 3900 Series Hardware Installation Guide
OL-18712-03
Chapter 5
Installing and Upgrading Internal Modules and FRUs
Replacing Power Supplies and Redundant Power Supplies
Figure 5-30
Cisco 2921 and 2951 Power Supply Components
.
Replacing the Power Supply on the Cisco 3900 Series Routers
Step 1
Read the
“Safety Warnings” section on page 5-2
section and disconnect the power supply before you
perform any module replacement.
1
Fan tray and bezel assembly
2
Power supply
3
Power supply fastening screws (2)
4
(Optional) RPS adapter
5
RPS or secondary power supply fastening
screws (2)
250908
1
4
2
5
5
3
SYS
ACT
SYS
PWR1
AUX
PWR1
SYS
PWR2
AUX
PWR2
Cisco
2900 Series