Protech Systems PA-6822 User Manual page 28

COM Connector
COM1-1, COM2-1, COM3-1, COM4-1, COM4-2: COM Connectors
PIN ASSIGNMENT
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
Note: Each COM connector is selectable for RI/+5V/+12V.
For details, refer to COM Port RI & Voltage Selection.
I-Button Connector
JI_BUTTON1: i-Button Connector
PIN ASSIGNMENT
1 COM3_DTR_R_I
2 COM3_RXD_R_I
I-Button Function Selection
JP20, JP21, JP22: i-Button Function Connectors
SELECTION JUMPER SETTING
COM 3
i-Button*
Note: Manufacturing Default is COM3.
*COM3 & COM3-1 will not function when jumpers JP20, JP21 & JP22 are set as "i-Button."
PA-6822 Series User Manual
PIN ASSIGNMENT
6 DSR
7 RTS
8 CTS
9 RI/+5V/+12V selectable
(Max. current: 1A)
10 NC
JUMPER ILLUSTRATION
1-2
JP20/JP21/JP22/
2-3
JP20/JP21/JP22/
Chapter 2 System Configuration
6
1
10
JI_BUTTON1
3
1
3
1
10
5
COM1-1/
COM2-1/
COM3-1/
COM4-1/
5
1
6
COM4-2/
2
1
Page 27