H3C S6520XE-HI Series Installation Manual page 43

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When you connect cables to the ports on the interface cards, follow these restrictions and guidelines:
Use category-6A or above cables and connectors.
Do not bundle cables in their first 20 m (65.62 ft).
Separate power cords and twisted pair cables at and around the distribution frame.
For ports adjacent to one another on the device, the peer ports on the distribution frame is
preferably not adjacent, for example:
If the device connects to one distribution frame, connect port 1 on the device to port 1 on the
distribution frame and port 2 on the device to port 3 on the distribution frame.
If the device connects to two distribution frames, connect port 1 on the device to port 1 on
distribution frame 1 and port 2 on the device to port 1 on distribution frame 2.
Keep the device and twisted pair cables away from the interference source, such as a two-way
radio and a high-power variable-frequency drive.
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