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Verifying Device Attachment
To verify that all devices are correctly attached you must check that all LEDs display the correct patterns,
and check that all ports show the correct status.
Part 1: Check LED Patterns
1
Power-on the ATM Workgroup Switch as described in Chapter 8, “Power-On and Self Test”
on page 69 and check the port LEDs on the ATM Workgroup Switch:
2
Check that the 25.6Mbps Port LEDs on the Base Unit are lit as described below:
If a port has a device attached that is powered on, and if the port has been enabled, the
expected pattern is as shown here:
If a port does not have a device attached, or if the attached device is not powered on,
the expected pattern is:
– Port Enable LED (green) BLINKING
– Output Activity LED (yellow) OFF
If a port is not enabled, the expected pattern is:
– Port Enable LED (green) OFF
– Output Activity LED (yellow) OFF
3
Check that the 155Mbps I/O Port LEDs on the Base Unit are lit as described below:
If the port has a device attached that is powered on, and if the port has been enabled,
the expected pattern is as shown here:
If the port does not have a device attached, or if the attached device is not powered on,
the expected pattern is:
– Status LED (green) BLINKING
– Output Activity LED (yellow) OFF
– Error LED (yellow) OFF
If the port is not enabled, the expected pattern is:
– Status LED (green) OFF
– Output Activity LED (yellow) OFF
– Error LED (yellow) OFF
Chapter 2. Installing the IBM 8285 Nways ATM Workgroup Switch
27
Summary of Contents for 8285 Nways
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