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DS4000/DS4001

Fiber Cable Connection

Fiber cables should be connected as below:
  1. Remove the protective plug from the QSFP-DD fiber transceiver bore; Remove the protective cap from one end of the fiber cable. Keep the fiber end clean.
  2. Attach one end of the fiber cable to the QSFP-DD transceiver, and attach the other end to the transceiver of the corresponding devices.
    CAUTION: Please verify the symbol above the port prior to connecting. Connecting to a wrong port might damage the system.
  3. Check the fiber port status indicator, a lighted LED indicates that the link has been established; otherwise, the link is not ready and should be examined.
Note: The SFP28 transceiver's TX port should be connected to the RX port of the corresponding device, and vice versa.
Warning: When connecting other devices through a fiber cable to the switch, the output power of the fiber cable must not exceed the maximum received power of the corresponding modules. Otherwise, it will damage the fiber transceiver.

Last updated: December 17, 2025