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LV-67Z User’s Manual
-15-
COM1
: RS232/422/485 DB9 connector
Pin
Signal
Pin
Signal
1
DCD/ 422TX-/ 485-
2
RXD/ 422TX+/ 485+
3
TXD
4
DTR
5
GND
6
DSR/ 422RX+
7
RTS
8
CTS/ 422RX-
9
Set by JP1
COM2
: RS232/422/485 DB9 connector
Pin
Signal
Pin
Signal
1
DCD/ 422TX-/ 485-
2
RXD/ 422TX+/ 485+
3
TXD
4
DTR
5
GND
6
DSR/ 422RX+
7
RTS
8
CTS/ 422RX-
9
Set by JP2
COM1 & COM2
RS-232/422/485 can set by BIOS.
You can find the setting from
On
Front Page
screen, click Setup Utility
On
Advanced
screen, click Super IO Configuration
Then click
RS232/RS422/RS485 Setting
If you want to use RS485, please follow below step before connection. .
COM1 RTX- Data- : short Pin1& Pin8
COM1 RTX+ Data+ : short Pin2& Pin6
COM2 RTX- Data-: short Pin1& Pin8
COM2 RTX+ Data+: short Pin2& Pin6
RS232/RS422/RS485 Setting
Input
Disable
Input/Output mode
Output
Enable RS232/RS422/RS485 Setting
High
RS422/RS485
GPIO Output Potential
Low
RS232
(Default)
JP1, JP2
: COM1, COM2 pin-9 setting
Jumper settings
Function
1-2
5V
3-4
12V
5-6
RI (Default)
Effective patterns of connection:
1-2 / 3-4 / 5-6
Other may cause damage