Contec COM-1PDH-LPE, User Manual, Page: 19 / 45

2. Setup
14
COM-1PDH-LPE
- Full -duplex
Figure 2.5. Connecting the RTS, CTS to the remote device
The figure below shows the circuit associated with the data transfer mode setting switch and terminator
setting switch.
Figure 2.6. Setting Switch Circuits
RxD
TxD
Terminator (Bit 9) Terminator (Bit 7)
Terminator (Bit 7) Terminator (Bit 9)
TxD
RxD
SW2 SW2
1 2 3 4 5 6
O N
TERM MODE
1 2 3 4 5 6
O N
TERM MODE
RxD TxD RxD TxD
Inserted Not inserted
TxD+
TxD-
RxD+
RxD-
RTS
DCD
DTR
DSR
RI
CTS
SIN
SOUT
Terminator
1/2W 100
Ω
2 1
Terminator
3
4
5
6
Data transfer mode
162850
or equivalent to it