Instruction Manual

PICOe-PV-D4251/N4551/D5251 User Manual
Page 49
Figure 4-8: PCIe Status Select Jumper Pinout Locations
4.5.7 COM 3 Function Select Jumpers
Jumper Label: J1 and J2
Jumper Type:
6-pin headers
Jumper Settings:
See Table 4-8 and Table 4-9
Jumper Location:
See Figure 4-9
The COM 3 Function Select jumpers set the communication protocol used by the COM 3
serial communications port as RS-232, RS-422 or RS-485. The COM 3 Function Select
settings are shown in Table 4-9.
J1 Setting Description
1-2 RS-232 (Default)
3-4 RS-422
5-6 RS-485
Table 4-8: COM 3 Function Select Jumpers Settings
J2 Setting Description
1-3, 2-4 RS-422 (Default)
3-5, 4-6 RS-485
Table 4-9: COM 3 Function Select Jumpers Settings