5. Each Component Function
Note!
A bit indicated with "rsv" is used by the system.
Do not modify the bit.
RX
-
(11)
RX+ (3)
TX
-
(10)
TX+ (2)
0 : Controlled by RTS
TE_SEL
1 : Controlled by TE_GATE
VCC
TXD
47k
Ω
6.2k
Ω
0 : Transmission prohibited
RTS
1 : Transmission permitted
0 : Transmission permitted
TE_GATE
1 : Transmission prohibited
0 : Receiving permitted
RE_GATE
1 : Receiving prohibited
RXD
6.2k
Ω
47k
Ω
1
23
JP4
0
1
R
D
120
Ω
Figure 5.16. Half-Duplex Connection Method
RX
-
(11)
RX+ (3)
TX
-
(10)
TX+ (2)
0 : Controlled by RTS
TE_SEL
1 : Controlled by TE_GATE
VCC
TXD
47k
Ω
6.2k
Ω
0 : Transmission prohibited
RTS
1 : Transmission permitted
0 : Transmission permitted
TE_GATE
1 : Transmission prohibited
0 : Receiving permitted
RE_GATE
1 : Receiving prohibited
RXD
6.2k
Ω
47k
Ω
1
23
JP4
0
1
R
D
120
Ω
Figure 5.17. Full-Duplex Connection Method
74
User’s Manual