Protech Systems PA-8225, User Manual, Page: 26 / 247

Chapter 2 System Configuration
PA-8225 SERIES USER
’
S MANUAL
Page: 2-12
2-2-3. COM Connector
COM1-1, COM2-1, COM3-1, COM4-1, COM4-2: COM Connectors
PIN ASSIGNMENT PIN ASSIGNMENT
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI/+5V/+12V selectable
(Max. current: 1A)
5 GND 10 NC
Note: Each COM connector is selectable for RI/+5V/+12V.
For details, refer to COM Port RI & Voltage Selection .
2-2-4. i-Button Connector
JI_BUTTON1: i-Button Connector
PIN ASSIGNMENT
1 COM3_DTR_R_I
2 COM3_RXD_R_I
2-2-5. COM3 / i-Button Function Selection
JP20, JP21, JP22: COM3 / i-Button Function Connectors
SELECTION JUMPER SETTING JUMPER ILLUSTRATION
COM 3 1-2
1
3
JP20/JP21/JP22 /
i-Button* 2-3
1
3
JP20/JP21/JP22 /
Note: Manufacturing Default is COM3.
*COM3 & COM3-1 will not function when jumpers JP20, JP21 & JP22 are set as “i-Button.”
1
2
JI_BUTTON1
5 1
10
6
COM1-1/
COM2-1/
COM3-1/
COM4-1
/
6 10
1
5
COM4-2 /