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1. Check whether the receive and transmit ends are reversed. The transmit end of an optical port must be
connected to the receive end at the other end. You can confirm both ends by exchanging the connection
order of two fiber cables.
2. Check whether wavelengths of optical transceivers on both sides are consistent. For example, an optical
transceiver with a wavelength of 1310nm cannot be connected to an optical transceiver of 1550nm.
3. Check whether the distance between two sides exceeds the maximum length marked on the optical
transceiver.
4. Check whether the speeds of two sides are consistent and whether the fiber cable type meets
requirements. For ports supporting different speeds, check their duplex mode settings.
Troubleshooting After Installation
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