Radicom Research Inc RB4000 사용자 설명서

다운로드
페이지 20
 
RB4000HM Switch settings: 
This Switch is reserved for future use. Do not change. They all should be set to the OFF 
position. 
 
DTE Speed 
 115200 
(Default) 
OFF OFF OFF
 
 
 
 
 
 
 
 
 
RB4000HM Interface Signal Level Definitions 
 
Pin #  Pin Name 
Type 
Description  
I/O Voltage Range 
1   KEY 
-  
 
 
2   Not Used  
No connection  
 
3   LINK LED  
Link LED output 
Vol: 0V ~ 0.2V 
Voh: 2.8V ~ 3.3V 
4   3.3 VDD 
PWR  Supply voltage 
3.15V ~ 3.45V 
5   _RESET  
I  
Reset  if  low  for  more 
than 5ms 
Vil: 0V ~ 0.99V 
Vih: 2.31V ~ 3.3V 
6   GND  
-  
Ground  
 
7   Reserved  
 
 
8   Reserved  
 
 
9   Reserved  
 
 
10   Reserved  
 
 
11   Reserved  
 
 
12   Reserved  
 
 
13   Reserved  
 
 
14   _CTS  
I  
UART  clear  to  send 
active low  
Vil: 0V ~ 0.99V 
Vih: 2.31V ~ 3.3V 
15   Reserved  
 
 
16   Reserved  
 
 
17   _RTS  
O  
UART  request  to  send 
active low  
Vol: 0V ~ 0.2V 
Voh: 2.8V ~ 3.3V 
18   _TX  
O  
UART data output  
Vol: 0V ~ 0.2V 
Voh: 2.8V ~ 3.3V 
19   _RX  
I  
UART data input  
Vil: 0V ~ 0.99V 
Vih: 2.31V ~ 3.3V 
20   Reserved  
 
 
 
 
15
Note: I/O is DTE not DCE. RTS and CTS functionality is for Hardware Flow 
Control.