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Cisco ASR 9000 Series Aggregation Services Router Overview and Reference Guide
OL-17501-09
Chapter 2 Functional Description
Power System Functional Description
AC Power Trays
The AC power tray provides 20-A UL/CSA-rated, 16-IEC-rated AC receptacles. The version 1
receptacle has a bail lock retention bracket to retain the power cord. The version 2 receptacle has a clamp
mechanism with a screw that can be tightened to retain the power cord. DC output power from the AC
power tray is connected to the router by two power blades that mate to the power bus on the backplane.
System communication is through a I2C cable from the backplane.
Figure 2-57 shows the back of the version 1 AC power tray and Figure 2-58 shows the back of the version
2 power tray.
Figure 2-57 Version 1 AC Power Tray Rear Panel
Figure 2-58 Version 2 AC Power tray Rear Panel

AC Tray Power Switch

Each AC power tray provides a single-pole, single-throw power switch to power on and put in standby
mode all power modules installed in the tray simultaneously. When the power modules are turned off,
only the DC o utput power i s turned off; the power module fans and LEDs still function. The power switch
1DC output power blades 3Power switch
2IEC input receptacles with retention brackets 4I2C cable from backplane
1DC output power blades 3I2C cable from backplane
2IEC input receptacles with retention brackets
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