X1
X4
R
S
48
5-
B
R
S
4
8
5
-A
LD O
LD O
LD I
LD I
R S422
R S422
A
B
Figure 3-1:
Option Selection Map
Jumpers
RS422:
Select differential(RS-422, four-wire) communications mode
RS485-A, RS485-B:
Select differential(RS-485, two-wire) communications mode
LDO:
Apply load to RS-422 output or RS-485
LDI:
Apply load to RS-422 input
X1/X4:
Select either 115.2 Kbaud or 460.8 Kbaud maximum
