Chapter 4 Troubleshooting the Installation
Troubleshooting the Power Subsystem
•Ilim—Indicates the power supply is operating in a current-limiting condition.
–Make sure that each power cord is connected to a dedicated AC power source.
–Each AC power supply operating in the nominal range of 200 to 240 VAC requires a minimum service of 20 A, North America (or 13 A, international).
Because the AC-input power subsystems use redundant power supplies, a problem with the DC output voltage to the backplane from only one power supply should not affect router operation. When the router is equipped with two AC power supplies, it powers on and operates even if one power supply fails.
Troubleshooting the DC-Input Power Subsystem
DC-input power supplies are monitored for internal temperature, voltage, and current load by the MBus module on the alarm cards, and by the master MBus module on the RP. If the router detects an extreme condition, it generates an alarm on the alarm card and logs the appropriate warning messages on the console.
Figure 4-2identifies the components of a DC PEM.
| Cisco XR 12410 Router Installation Guide |
4-8 | OL-13832-01 |
