4 com1 to com5 pin 9 select, Figure 4-2: cf card setup jumper location, See figure 4-2 – IEI Integration PPC-WIDS-51xxA-G41 User Manual
Page 50: Own in figure 4-2

PPC-51xxA-G41/WIDS-51xA-G41 Panel PC
Page 38
Figure 4-2: CF Card Setup Jumper Location
4.5.4 COM1 to COM5 Pin 9 Select
Jumper Label:
J_COM_V1, J_COM_V2, J_COM_V3, J_COM_V4 and
J_COM_V5
Jumper Type:
6-pin header
Jumper Settings:
Jumper Location:
Four jumpers configure pin 9 on the COM1, COM2, COM3 COM4 and COM5 connectors.
Pin 9 on these connectors can be set as either +5 V, +12 V or as the ring (RI) signal. The
COM1, COM2, COM3, COM4 and COM5 Pin 9 Setting jumper selection options are
shown in Table 4-4.
Short 1 – 3
Short 2 - 4
Serial Port
Default
Default
Short
3 – 5
Short
4 – 6
J_COM_V1
COM1
RI signal
+5 V
Use voltage
+12 V
J_COM_V2
COM2
RI signal
+5 V
Use voltage
+12 V
J_COM_V3
COM3
RI signal
+5 V
Use voltage
+12 V
J_COM_V4
COM4
RI signal
+5 V
Use voltage
+12 V
J_COM_V5
COM5
RI signal
+5 V
Use voltage
+12 V
Table 4-4: COM1 to COM5 Pin 9 Setting Jumper Settings