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RS485 Mode
A.3.1
Termination Resistor Select (SW3)
Description
Default
DATA+
RX-
R_RX+
R_DATA-
A.4
Connector Pin Definition
A.4.1
SATA connector (CN12)
1654004659 Serial ATA 7P 1.27mm 180D(M) DIP WATM-07DBN4A3B83.12
Pin
Signal
1
GND
2
A+
3
A-
4
GND
5
B-
6
B+
7
GND
Bit 1,2,3,4,5,8,9 OFF
Bit 6,7,10 ON
Termination Resistor Select
This switch is used to select Termination Resistor (120 ohm) for long
distance transmission or device matching.
Bit1
off
& Bit2
off
(DATA+ & RX-)
Pin 1
Pin 2
Default
Pin 3
Pin 4
Description
GND
Signal Pair A : TX+/-
(Transmit)
GND
Signal Pair B : RX+/
(Receive)
GND
23
IPPC-5211WS Series User Manual
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