Chapter 5 Maintaining the Router
Removing and Replacing a DC PDU
Step 1 Power off both PEMs (item 5 in Figure 5-12).
Figure 5-12 DC PEM and PDU Components
1 | 2 | 3 |
INPUT
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35A
INPUT | OUTPUT | OU |
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OK | TPUT | |||
OK |
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| FAIL | ||
7 | 5 |
3 6
4
66295
1 | DC PDU | 5 | On/Off switch |
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2 | DC PEM | 6 | PDU captive screws |
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3 | PEM captive screws | 7 | PDU terminal block |
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4Status LEDs
Step 2 Power off the circuit breakers assigned to the DC power source.
| Cisco XR 12404 Router Installation Guide |
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