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F9 Fetal & maternal Monitor Service Manual Principle Introduction

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7.2.7 Bottom Interfaces Board

F9 bottom interfaces board consists of connect CNS interconnection circuit, voltage switching

circuit, built-in wireless module power circuit and interfaces.

Interface definition

(1) Interface connects to PS800B power module

(2) Interface connects to power control board

(3) Interface connects to FM board

(4) Interface connects to print controlling board

Pin No. Symbol

1 VCC

2 GND

3 GND

4 GND

5 VDD

6 VEE

Pin No. Symbol

1 MB_TXD6

2 MB_RXD6

3 GND

4 CHARGE

5 AC_ON

6 Reserved

Pin No. Symbol

1 GND

2 MB_RXD1

3 MB_TXD1

Pin No. Symbol

1 +12V

2 +12V

3 GND

4 VCC

5 GND

6 MB_RXD2

7 MB_TXD2

8 BUSY

9 PE

EDAN F9 Service Manual

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