Star Hub (Multiport Tap)

Shorter drop line lengths must be maintained when passive distributors ("multiport taps"), such as the Beckhoff ZS5052-4500 Distributor Box. The following table indicates the maximum drop line lengths and the maximum length of the trunk line (without the drop lines):

Star Hub (Multiport Tap) 1:

Guide values

The following values are recommended by BECKHOFF.

Baud rate

Drop line length with multiport topology

Trunk line length (without drop lines)

500 kbit/s

< 1.2 m

< 66 m

250 kbit/s

< 2.4 m

< 120 m

125 kbit/s

< 4.8 m

< 310 m