Radicom Research Inc RB4000 Benutzerhandbuch
RB4000HM Switch settings:
This Switch is reserved for future use. Do not change. They all should be set to the OFF
position.
position.
DTE Speed
1
2
3
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
O
Link LED output
Vol: 0V ~ 0.2V
Voh: 2.8V ~ 3.3V
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
than 5ms
Vil: 0V ~ 0.99V
Vih: 2.31V ~ 3.3V
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
active low
Vil: 0V ~ 0.99V
Vih: 2.31V ~ 3.3V
Vih: 2.31V ~ 3.3V
15 Reserved
-
16 Reserved
-
17 _RTS
O
UART request to send
active low
active low
Vol: 0V ~ 0.2V
Voh: 2.8V ~ 3.3V
Voh: 2.8V ~ 3.3V
18 _TX
O
UART data output
Vol: 0V ~ 0.2V
Voh: 2.8V ~ 3.3V
Voh: 2.8V ~ 3.3V
19 _RX
I
UART data input
Vil: 0V ~ 0.99V
Vih: 2.31V ~ 3.3V
Vih: 2.31V ~ 3.3V
20 Reserved
-
15
Note: I/O is DTE not DCE. RTS and CTS functionality is for Hardware Flow
Control.
Control.