Owner manual

AFL-4 Series-N270 User Manual
Page 52
Figure 4-6: Clear CMOS Jumper
4.9.4 COM3 RX Function Select Jumper
Jumper Label: JP6
Jumper Type:
12-pin header
Jumper Settings:
See Table 4-4
Jumper Loc
ation:
See Figure 4-7
The COM3
RX Function Select jumper sets the communication protocol used by the
COM3 port as RS-232, RS-422 or RS-485. The COM3 RX Function Select jumper
settings are shown in the table below.
Setting Description
Short 1 – 2, 4 – 5, 7 –
8, 10 – 11
RS232
Short 2 – 3, 5 – 6, 8 –
9, 11 – 12
RS422/RS485
Table 4-4: COM3 RX Function Select Jumper Settings