QUESTION:

How are the AS-Interface front panel modules usually delivered?
With a connection possibility to AS-i (yellow cable) and external power supply (black cable)?

On the back there are 2 connections but the connection for the external power supply does not have any penetration contacts. Why? Does that depend on the AS-Interface communication module used internally?

ANSWER:

The 3SF5874-4 AS-Interface front panel modules are always delivered without a connection for the external auxiliary voltage.
Only the yellow cable must be connected.
The yellow cable supplies the lamps with voltage.