Interface And Key; Db15 Interface - EDAN FTS-3 Service Manual

FTS-3 Fetal Telemetry System Service Manual
AC EMI
Input Circuit
PWM Control
IC：NCP1337

7.2 Interface and Key

At the back of the base station, there is an interface and two keys.


DB15 interface

Working channel key

7.2.1 DB15 Interface
All the base stations are provided with DB15 interfaces. You can connect FTS-3 to F6/F9 series
fetal/maternal monitor via DB15 interface.
Rectifier
Filter
Opticalcoupler
feedback
Figure 7- 7 Power Module Principle Block Diagram
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+
and
- 22 -
Principle Introduction
19V
Management
DC
LDO 5V
5V DC
MCU OUTPUT
Charging
14.8V
Battery
12V
DC