Contec CONPROSYS Series Setup Manual page 34

Product with RS-422A/485 2- channel
Model: CPS-MC341-ADSC2-111
Data transfer mode
Full-duplex [Full]
Terminator Setup
Set the terminators on or off in accordance with the device which you are communicating with.
The DIP switch (SW2) sets the terminator.
The terminators on the board are 100Ω resistors.
If you intend to use a terminator of other than 100Ω, set the terminator switch OFF first, and insert
an external terminator.
Use the terminator inside
SW4 SW3
↓ ↓
1 2 3 4 1 2
USB RS-232 C CO M B
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Hardware Setup
Setup Manual Integrated Type
Activating RTS signal of this product activates CTS signal.
SW4
↓
1 2 3 4
Terminator(Bit 1)
This Product
TxD
RxD
Terminator(Bit 2)
SW2 SW1
ON ON
1 2 3 4 1 2 3 4 5 6
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Setup method
SW3
↓
1 2
SW2
ON
USB R S-232 C C O M B
1 2 3 4
Terminator(Bit 2)
External Device
RxD
TxD
Terminator(Bit 1)
Set the terminator outside
SW4 SW3
↓ ↓
1 2 3 4 1 2
USB R S-232 C C O M B
SW1
ON
1 2 3 4 5 6
SW2 SW1
ON ON
1 2 3 4 1 2 3 4 5 6