Description of Components
2-3
DP/PA Link and Y Link Bus Couplings
A5E00193841-011
2.2 Y coupler
The Y coupler is only intended for operation in the Y link for use on an S7-400H.
The Y coupler cannot be operated without an IM 157.
Features
Connection of DP standard slaves
Transmission rate of 45.45 kBaud to 12 MBaud
Isolation between IM 157 and the underlying PROFIBUS-DP
The power supply of the Y coupler is provided via the backplane bus.
Configuration
The Y coupler is a component of the Y link and is not configured separately.