Chapter 1: Controls, Ports, and Indicators
6
Power Supplies
The chassis can be configured with three to four power supplies. Each power supply has a dual rating
of 800W minimum over an input range of 180-264VAC and 700W minimum over an input range of
90-132VAC. Each supply is designed to minimize EMI and RFI. Each power supply also has self-
contained fans for cooling.
The DC output voltages of each power supply are:
• +48 V
• +12 V standby
Each supply docks into a 28-pin connector on the front of the Power Distribution Board (T-Docking
board).
LCD DISPLAY
POWER
PWR PWR ACTIVE ACTIVE FAIL FAIL
RESET INT SYS PWR PWR FAN GEN
Power Supply Indicators
Figure 1-5. Power Supply Indicators
Table 1-5. LEDs for Power Supplies
Control Indicator Description
Power LED
(Green)
When lit continuously, it indicates the power
supply DC outputs are on and OK. Blinking
indicates the power supply is on standby. Off
indicates there is no power to the power supply.
Predictive Fail LED
(Amber)
A blinking LED indicates that the power supply
will soon fail.
Fail LED
(Amber)
When lit continuously, it indicates that the power
supply has failed and is not supplying output.
When blinking, it indicates that the power supply
has reached its current limit.
