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Cisco ASR 9000 Series Aggregation Services Router Overview and Reference Guide
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Chapter 3 High Availability and Redundant Operation
Power Supply Redundancy
AC Power Redundancy
The AC power modules are a modular design allowing replacement without any outage. Figure 3-1
shows the minimum and maximum module configurations for version 1 power modules. Figure 3-2 shows
that version 2 is similar, with a minimum of one module per tray.
At least one fully loaded AC tray is required to power a fully loaded system. Each module outputs
3000 W.
For Cisco ASR 9010 Routers, the slot location of a module in the power trays is irrelevant as long as the
two power trays have an equal number of modules installed (in case one tray should fail) (see
Figure 3-1).
For Cisco ASR 9006 Routers and Cisco ASR 9904 Routers the slot location of a module in the tray is
irrelevant as long as there are N+1 number of modules (see Figure 3-3 and Figure 3-4).
Figure 3-1 AC System Power Redundancy for the Cisco ASR 9010 Router—Version 1
Figure 3-2 AC System Power Redundancy for the Cisco ASR 9010 Router—Version 2
Figure 3-3 AC System Power Redundancy for the Cisco ASR 9006 Router—Version 2
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3,000W AC system
1+1 min power redundancy
3000W AC
3000W AC
9,000W AC system
3+3 max power redundancy
3000W AC 3000W AC 3000W AC
3000W AC 3000W AC 3000W AC
3000WAC
3000WAC
3000WAC 3000WAC 3000WAC 3000WAC
3000WAC 3000WAC 3000WAC 3000WAC
12,000WAC system
4+4 max power redundancy
3,000WAC system 1+1 min power
redundancy
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3000WAC 3000WAC 3000WAC 3000WAC 3000WAC 3000WAC
9,000WAC system
3+1 max power redundancy
3,000WAC system 1+1 min power
redundancy