EDAN FTS-3 Service Manual page 24

FTS-3 Fetal Telemetry System Service Manual
Power
Processor
Serial Port
USB
Watchdog Timer
Power Consumption
Size
Main board ports to indicative light board
Figure 7- 2
+5V、+12V
Control MCU: STM32F103VDT6
Work frequency: 64MHz
RAM: 64K byte
Flash: 384K byte
RF MCU: STM32L152RBT6
Work frequency: 20MHz
RAM: 16K byte
Flash: 128K byte
5serial ports
1 standard USB HOST interface
1.6s
100mA @ +5V(max)
130mm×76 mm
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Principle Introduction
Pin No. Symbol
1,3 VCC
5,7 GND
4 +12V
7 LED1_R
9 LED1_G
11 LED2_R
13 LED2_G
15 LED3_R
17 LED3_G
6 TRANS1_TX
8 TRANS1_RX
10 TRANS2_TX
12 TRANS2_RX
14 TRANS3_TX
16 TRANS3_RX
20 POWER_RXD