5 com3 tx function select jumper, Figure 3-9: jp8 jumper setting location, Table 3-6: com3 tx function select jumper settings – IEI Integration AFL-15i-HM55 v2.00 User Manual
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AFL-HM55 Series Panel PC
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Figure 3-9: JP8 Jumper Setting Location
3.9.5 COM3 TX Function Select Jumper
Jumper Label:
JP9
Jumper Type:
6-pin header
Jumper Settings:
Jumper Location:
The COM3 TX Function Select jumper configures the TX pin on COM3 serial port
connector as RS-422 or RS-485. The COM3 TX Function Select jumper selection
options are shown in Table 3-6.
JP9 Description
Short 1 – 3
RS-422 TX-
Short 2 – 4
RS-422 TX+
Short 3 – 5
RS-485 D-
Short 4 – 6
RS-485 D+
Table 3-6: COM3 TX Function Select Jumper Settings
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