TLK2201走一对双绞线的话能传多远

The maximum rate and distance of data transfer is dependent upon the attenuation characteristics of
the media and the level of noise coupling from the environment.

TLK2201只是串行解串器，无特别的信号调理功能，如均衡，去加重，预加重。所以距离要看线缆的质量，有些线缆会有速率，衰减/距离的图给出。