Specifications

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3-7. SYSTEM CLOCK SELECT AND CPU SETTING
Factory Preset
3-8. SERIAL PORT A~D CONNECTOR (CN11)
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The SERIAL PORT A~D Connector assignments are as follows:
SERIAL PORT A~D CONNECTOR (CN11)
PIN Signal PIN Signal
1 –DCD1F 2 –DSR1F
3 RXD1F 4 –RTS1F
5 TXD1F 6 –CTS1F
7 –DTR1F 8 –RI1F
9 VCOM1 10 GND
11 –DCD2F 12 –DSR2F
13 RXD2F 14 –RTS2F
15 TXD2F 16 –CTS2F
17 –DTR2F 18 –RI2F
19 VCOM2 20 GND
21 –DCD3F 22 –DSR3F
23 RXD3F 24 –RTS3F
25 TXD3F 26 –CTS3F
27 –DTR3F 28 –RI3F
29 VCOM3 30 GND
31 –DCD4F 32 –DSR4F
33 RXD4F 34 –RTS4F
35 TXD4F 36 –CTS4F
37 –DTR4F 38 –RI4F
39 VCOM4 40 GND
1-3 & 2-4:100MHZ
3-5 & 4-6:66MHZ(DEAFAULT)
1 3 5
2 4 6
1
2
39
40
CN1