Termination And Biasing - Proconx XNUT-100 Hardware Manual

5.3.2 Shielding and Earthing Requirements
5.4 RS-485/422 Connector J6
J6
SER0 SER1
RS-485 RS-485
J6
RS-422

5.4.1 Termination and Biasing

<
<
$
9( ' 63 (2
! M $
*!3)5 (2 <2' 63D 7
Pin Signal
1 GND Signal Ground
2 RX/TX0+ B+
3 RX/TX0- A-
4 GND Signal Ground
5 RX/TX1+ B+
6 RX/TX1- A-
9(> 8 < .
9(> 8 < 3
Note
< 8 2-65
< 8 2-65
) $
< ;"<23.. 8 2-65
9B
RS-485 Function
$
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) $ $ 34.
$ 34.
5.3 RS-232 Connector J7 (SER1)
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#
C !
RS-422 Function
Signal Ground
TX+
TX-
Signal Ground
RX+
RX-
" 08<.
" 08<3
<
2
$ $ E
8 24'4
9B
L* 2
AVR I/O Pin
PE0 & PE1
PD2 & PD3
0F8 ! ")
0F8 ! "
8 2-65
19