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參數(shù)資料
| 型號(hào)： | 232CL9R0900 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | RS-232 |
| 英文描述： | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| 中文描述： | 5V的高速RS - 232收發(fā)器與0.1uF電容 |
| 文件頁(yè)數(shù)： | 2/2頁(yè) |
| 文件大?。?/td> | 95K |
| 代理商： | 232CL9R0900 |
232CL9R0900 – pg. 2/2
B&B Electronics - January 2000
This product designed and manufactured in USA of domestic and imported parts by
Note: The T+ & T- indentification doesn't imply a
direct connection across the transmitter.
Note: The R+ & R- indentification doesn't imply a
direct connection across the receiver.
Figure 2. Connection to an Active Current Loop
RS-232
to
Current
Loop
Converter
T+
R+
R-
T-
Active Current
Loop Port
R-
T+
T-
R+
Vs
Vs
Connection to a passive current loop port requires a 12 VDC power supply. Use the 470 ohm resistors inside of
our converter to create a 20 ma current source, as shown in figure 3.
+12VDC
Figure 3. Connection to a Passive Current Loop
470
22
R+
R-
23
25
RS232 TO CURRENT
LOOP CONVERTER
470
T-
19
21
9
6
T+
14
T+
YOUR
EQUIPMENT
T-
PASSIVE CURRENT
LOOP CONVERTER
R+
R-
Interconnection of two B&B current loop converters also requires the use of a 12 VDC power supply since they
are both passive ports. See figure 4.
+12VDC
Figure 4. Interconnection of Two Current Loop converters
470
22
R+
R-
23
25
470
T-
19
21
9
6
T+
14
470
22
R-
R+
23
25
T-
470
19
21
9
6
14
T+
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