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Identifying problems using leds, Power-supply leds – IBM 201 User Manual

Page 60

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Identifying problems using LEDs

The LEDs are part of the light-path diagnostics built into the NAS 200 engine. The
LEDs help you identify the type of system error that occurred. See the following
sections for more information.

Power-supply LEDs

The AC and DC power LEDs on the power supply provide status information about
the power supply.

Table 3 on page 49 describes the AC and DC power LEDs.

Note: The minimum configuration required for the DC good light to come on is:

v

Power supply

v

Power backplane

v

System board (with pins 2 and 3 on J23 extension cable connected
together to bypass the power switch.

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NAS 200 User’s Reference

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