I found this symbol in some datasheet. But I have no idea what is it? Can anyone tell me?

  • The symbol is mirrored and points towards a data signal line
  • It looks like an icon for a clock signal or a rising and falling slope or like two closing brackets

Close up of that symbol

Schematic showing that symbol

  • \$\begingroup\$ Gonna need some context. But it looks like differential signaling. \$\endgroup\$ – Ignacio Vazquez-Abrams Jun 28 '15 at 5:30
  • \$\begingroup\$ Another photo added \$\endgroup\$ – user79839 Jun 28 '15 at 5:46

TX_LED_N and TX_LED_P nets' naming convention says they are differential. It might be a instruction to the layout designer to route the lines strictly length matched tracks on PCB. It might also depend on the tool, the tool might automatically support pairing of differential signals and indicate the same via the symbol posted in OP. Below image from below link in comment.
enter image description here

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