73D02962C89-O
SHEET 18 OF 23
RX|TX_LO
RX|TX_HI
0.
R1388
R1389
0.
R631
0.
L28
1
2
Vuser1
1
2
CTS1
L23
1
2
RTS1
L24
L26
1
1
2
RXD1
L27
1
2
DTR2
2
TXD1
L25
1
2
L22
1
2
Vuser2
C215
820PF
1
2
L16
N.C.
RTS_1
VUSER_1
4.1
as DTE
RS-232 connector
RS-485 connector
as DTE
RS-232 _TOOLBOX
TX_2
RX_2
CTS_2
PGND
CD_2
RTS_2
VUSER
DTR_2
TX_1
RX_1
CTS_1
PGND
1
2
TXD2
J8-4
L17
6
J8-6
C219
820PF
4
J9-4
2
J9-2
RX/TX(+)
3
J9-3
TX(-)
L18
1
2
RXD2
RX/TX (-)
1
J9-1
L19
1
2
CTS2
J8-3
3
1
2
CD2
7
J8-7
TX(+)
RTS2
C221
820PF
L20
L39
8
J7-8
7
J7-7
6
J7-6
5
J7-5
2
4
J7-4
J7-1
3
J7-3
J7-2
1
1
J8-1
8
J8-8
2
J8-2
5
J8-5
4
C213
820PF
820PF
C214
C212
C211
820PF
820PF
820PF
C210
C209
820PF
CR14
CR13
CR12
CR11
CR9
CR10
CR7
CR8
CR6
CR4
CR5
CR3
CR2
CR1
820PF
C220
CR21
CR22
CR23
CR19
CR24
CR20
CR16
CR15
CR18
CR17
820PF
C217
1
2
C216
820PF
VZ31
1
2
VZ32
820PF
C218
820PF
C222