Apex Attorneys at Law, LLP
PCB and signal transmission system
A PCB and a signal transmission system are provided. The PCB includes a connection module, and at least two signal layers and at least two reference layers spaced apart. The connection module comprises a first connection terminal and a second connection terminal. The first connection terminal is connected to at least one first signal layer and is connectable to an external optical interface. The second connection terminal is connected to at least one second signal layer and is connectable to an external electrical interface. Each reference layers is provided with a through-hole, and for each reference layers, there is an overlapping region between a projection region of an orthogonal projection of the connection module onto the reference layer and a hole region of the through-hole arranged on the reference layer.
ZHENGZHOU YUNHAI INFORMATION TECHNOLOGY CO., LTD.
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Junyang
Li