Cisco ASR 903 Hardware Installation Manual page 20

Power Supply Features
• A900-PWR550-D-E—Provides 550 W output power for system 12 V power. Uses a T-shaped connector.
The A900-PWR550-D and the A900-PWR550-E power supply can be used with the A900-RSP3C-400-S
Note
RSP modules only if the power consumption is within 550 W. However, A900-PWR1200-D is
recommended.
• A900-PWR1200-D—Provides 975 W output power for system 12 V power with the A903-FAN module.
As most of the system configurations using A900-RSP3C-400-S RSP modules require power exceeding
550 W, we recommend using the A900-PWR1200-D power supply with A900-RSP3C-400-S RSP
modules.
Figure 2: DC PSU Module (A900-PWR550-D) with Euro-style Connector
1
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
4
Euro-style connector —
Cisco ASR 903 Router Overview