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37
Mounting and Connection Instructions Door controller module for MB
ST23
ST5
ST4
ST19
ST2
ST1
ST3
ST9
ST12
Rel 2
0V
Monitoring
contact
(to ST3)
No-load current
door strike
Load current
door strike
NCC
M
NOC
Monitoring
contact
(to ST3)
U_ext (DC or AC)
AC - Release button
If the door strike
monitoring contact is
used, it should be
connected to a common
bolt switching group
(AND- function).
Door strike
monitoring contact
Bolt switching
contact
Door strike m
Bolt switching contact
onitoring contact
and
0V