Omega OMG-USB-SER-2 User Manual
Configuration
OMG-USB-SER-2
Page 7
Switch Examples Continued
Port 2
Port 1
Figure 3: Electrical Interface Configuration
Port 1 : RS-232
The corresponding shunt is in the 232 position. The switches will have
no effect.
no effect.
Port 2 : RS-485 two wire communication with no echo.
The corresponding shunt is in the 422/485 position. Switches 485 2,
NE 2, and Port 2 L, L, T, PU, and PD are all in the ON position.
NE 2, and Port 2 L, L, T, PU, and PD are all in the ON position.
RS 232
RS 232
RS 422/485
RS 422/485
ON
1
2
3
4
5
6
7
2
3
4
5
6
7
8
OFF
9
10
10
Port 1
L
L
T
PU
PD
L
L
T
PU
PD
Port 2
L
L
T
PU
PD
L
L
T
PU
PD
E5
E6
E7
E8
SW4