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Allied Telesis AT-DC2552XS User Manual

Page 77

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Stack Installation Guide for AT-2552XS L2 Data Center Switch

77

If the remote network device is a managed device, use its
management firmware to determine whether its port is enabled.

Test the attenuation on the fiber optic cable with a fiber optic tester
to determine whether the input optical signal is too weak
(sensitivity) or too strong (maximum input power).