參數(shù)資料
型號: 20-101-0732
廠商: Rabbit Semiconductor
文件頁數(shù): 57/126頁
文件大?。?/td> 0K
描述: INTERFACE SMART SCREEN OP7100
標(biāo)準(zhǔn)包裝: 1
系列: SBC
模塊/板類型: 單板計算機(jī)模塊
適用于相關(guān)產(chǎn)品: OP7100
其它名稱: 20-101-732
20-101-732-ND
OP7100
36
Hardware
Serial Communication
Two serial channels support asynchronous communication at baud rates
from 300 bps to 57,600 bps. Serial communication provides a simple and
robust means for networking controllers and other devices.
Figure 3-14 illustrates the configuration of the OP7100 serial channels.
Figure 3-14. Serial Channels
The factory default configuration for the OP7100 is for one 5-wire RS-232
port (with RTS and CTS) and one half-duplex RS-485 port. An RS-485
channel can provide half-duplex asynchronous communication over
twisted-pair wires for distances up to 3 km. Two other configurations,
shown in Figure 3-14, are one 3-wire RS-232/one RS-485, and two 3-wire
RS-232. The configurations are set with jumpers on header JP3.
Figure 3-15. Serial Communication Jumper Configurations
T1OUT
T2OUT
R1IN
R2IN
T1IN
T2IN
R1OUT
R2OUT
TX1/RTS
TXA0
232A
485
RX1/CTS
RXA0
D
R
DE
RE
A
B
U24
VCC
U26
to J11
to J10 (DE9)
and J8
TXA1
RXA1
EN485
TXA0
RTS0
RXA0
CTS0
FD
10
12
JP3
12
34
56
78
9
11
5-wire RS-232,
RS-485
10
12
JP3
12
34
56
78
9
11
two
3-wire RS-232
10
12
JP3
12
34
56
78
9
11
3-wire RS-232,
RS-485
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