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KINO-LX Motherboard
4.6.3 COM2 RS-232/422/485 Select
Jumper Label:
JP2
Jumper Type: 6-pin header
Jumper Settings:
See Table 4-5
Jumper Location:
See Figure 4-3
The RS-232/422/485 sele
ct jumper sets the communication protocol u
sed by the second
serial communications port (COM2) as RS-232, RS-422 or RS-485.
JP2 DESCRIPTION
Short 1-2 RS-232
Short 3-4 RS-422
Short 5-6 RS-485
Table 4-5: COM2 RS-232/422/485 Select Settings
4.6.4 COM1/2 RI and Voltage Select Jumper
Jumper Label:
JP1
Jumper Type: 10-pin header
Jumper Settings:
See Table 4-6
Jumper Location:
See Figure 4-3
This jumper allows the user to set the voltage for pin 9 on COM1 or COM2. Pin
9 is
traditionally a ring line but this jump
er can set pin 9 to supply 5V or 12V power to a serial
device connected to COM1 or COM2. Make the necessary jumper setting in accordance
with the settings shown in Table 4-6.