Siemens ST750 - Common Returns for Push Button; Common Returns for Detectors

ST750 GENERAL HANDBOOK
667/HB/33750/000 Page 96 Issue 6
If the red system error LED remains illuminated then a handset should be connected
and the fault log checked to see what errors exist. The fault log is described in the
Handset Handbook.
5.17 COMMON RETURNS FOR PUSH BUTTON
For the connections for the common returns see the following drawings :-
ST750 in small outer case - 667/CC/29000/002
ST750 in large outer case - 667/CC/29000/003
5.18 COMMON RETURNS FOR DETECTORS
For the connections for the common returns see the following drawings :-
ST750 in small outer case - 667/CC/29000/002
ST750 in large outer case - 667/CC/29000/003