Cadence II Fetal Monitor Service Manual
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according to different configuration. The basic parts of the monitor include: pulsed wave
ultrasound transducer, external TOCO transducer, Manual fetal movement mark, Fetal
monitor board, mainboard, built-in thermal printer module, power supply module, and
Structure Diagram
1.3.1 Power Supply Board
power module is designed according with IEC 60601-1, which can offer DC power as
+12V@1.5A,-12V@0.5A, and +5V@1.5A; The definitions of its power input, and output
jacks are as follows:
P4 is power switch ；P8 is Battery supply input jack.
Definitions for power supply input jack pins:
PIN No. Function Description
PIN1 (brown), PIN3 (blue) A.C. supply input pin
PIN2 Null
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