CALL-IN STATION
CIS4/25
NOTES:
• Transformer color codes shown are shown in the table to the right and
in the diagram below
• 25V amplifier connection example shown below provides 0.5W of power
(load) for each speaker
• Unused transformer wires must be insulated from each other, the
enclosure and ground
• Speakers on the same amplifier line can be connected at different tap
(power) levels
• Call-in switch is momentary contact, normally open, connect as
specified by control system manufacturer
COLOR
Green
Yellow
Orange
Black
Wiring Diagram
AT 25V
0.25W
0.5W
1.0W
COMMON
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