Basic Operation and Installation
Rev 3.4
Mellanox Technologies
18
3.1.1.4 Power Supply Status Indicators
The IS50XX 36 Port Switch is available with one or two factory installed Power Supply Units.
For switches with only one unit installed, a second Power Supply Unit can be added to increase
security, hot-swap ability and to add redundancy. See
Section E, “Replacement Parts Ordering
Numbers,” on page 75 for ordering part numbers.
Figure 7: IS5030-2BRC QSFP Power Side Panel
The primary power supply unit (PSU1) is located on the right side of the power side panel, with
PSU2 on the left side. Each PSU has a single 2 color LED on the right side of the PSU, that indi
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cates the internal status of the unit.
Figure 8: PSU Status LEDs
Table 6 - PSU Status LED Configurations
Figure 5 on page 16 shows the explanation of the PSU Status LED colors.
LED Configuration FAN LED
Green OK – The system is up and running.
Red Error –One or more fans is not operating properly. The system should be
powered down and troubleshoot the fan module.
Off Off – The fan unit is not receiving any power. Check that the fan unit is
properly and completely inserted.
Mellanox
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I2C
PSU 1
Primary Power
Supply Unit
PSU 2
Secondary Power
Supply Unit
Fan Unit
PSU status LED
PSU status LED
Fan status LED
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