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3. Jumper Setting
30
SPI-8150-LVA, SPI-8151-LVA
Setting the RS-422/RS-485 receiver disable control jumper
When the RS-422/RS-485 port is used, the RTS signal is used for driver enable control.
Connecting JP9 Pins 4-6 set to OFF disables the receiver at the same time, preventing the
port from receiving output data to an external device.
3.5.1 RS-422
Setting
RTS#
JP9: 7-8
TXD#
TX-
RTS-
TX+
RTS+
RX+
CTS+
RX-
CTS-
JP10: 7-8
JP10: 5-6
JP10: 3-4
JP10: 1-2
D
R
D
R
RXD#
RTS
CTS
COM2
1
2
3
4
5
6
7
8
9
JP9: 5-6
JP9: 4-6
120
Ω
120
Ω
120
Ω
120
Ω
3.5.2 RS-422
Setting
RTS#
JP9: 7-8
TXD#
JP10:7-8
JP10:5-6
D
R
RXD#
COM2
1
2
3
4
5
6
7
8
9
JP9: 5-6
JP9: 4-6
120 Ω
120 Ω
DATA-
DATA+
Содержание SPI-8150-LLVA
Страница 7: ...vi SPI 8150 LVA SPI 8151 LVA...
Страница 33: ...2 Hardware Installations 26 SPI 8150 LVA SPI 8151 LVA...
Страница 45: ...4 CPU Card Resources 38 SPI 8150 LVA SPI 8151 LVA...