Change Over Switch Type 124--187 - Raytheon 138-119 Operator's And Service Manual

1.2 Change Over Switch Type 124- -187
The Change Over Switch Type 124--187 is applied in combination with the Change Over
Box to allow the redundant operation (standard operation) of the compass equipment
(Change Over Switch position "Automatic"). During standard operation a switching--over to
the other system takes place if a fault occurs.
By manual switching--over to position "Sys1" or "Sys2" signal outputs are assigned to the
respective Distribution unit constantly.
Figure 3: Change Over Switch Type 124--187
3769DOC000002
Change Over Box
138- -119
Sys
1
Auto--
matic
Sys
2
front view
side view
(mounting position)
3
COMPASS
STD22
Edition: April 06, 2005