Safety Instructions
- Do not remove or plug in the ST 30 connection cable during a storm.
- Lay the ST 30 cable so that it cannot be stepped on or tripped over.
- Make sure no liquid is allowed to enter the system telephone. This may lead to short-
circuits.
- Remove the western plug on the ISDN connection cable from the ISDN socket first
before opening the system telephone ST 30 module slot.
To remove the ISDN connection cable, press the clip on the western plug (using a small
screwdriver if necessary) towards the body of the plug and pull on the cable at the same
time to remove it.