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參數資料
| 型號： | RS-485 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | RS-422 AND RS-485 APPLICATION NOTE |
| 中文描述： | RS - 422和RS - 485接口應用筆記 |
| 文件頁數： | 41/44頁 |
| 文件大小： | 628K |
| 代理商： | RS-485 |
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38
RS-422/485 Application Note
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 434-7094
Appendix A: EIA Specification Summary
EIA RS-422 Specification Summary
Conditions
Driver Output Voltage
Open Circuit
Driver Output Voltage
Loaded
Driver Output Resistance
A to B
Driver Output
Short-Circuit Current
common
Driver Output Rise Time
R
T
= 100
Parameter
Min
Max
Units
V
V
V
V
mA
10
-10
R
T
= 100
2
-2
100
±150
Per output to
10
% of Bit
Width
V
Driver Common Mode
Voltage
Receiver Sensitivity
Receiver Common-Mode
Voltage Range
Receiver Input Resistance
Differential Receiver
Voltage
R
T
= 100
±3
Vcm
≤
±7
±200
+7
mV
V
-7
4000
V
V
Operational:
Withstand:
±10
±12
EIA RS-485 Specification Summary
Conditions
Driver Output Voltage
Open Circuit
Driver Output Voltage
Loaded
Driver Output Short-
Circuit Current
+12V or –7V
Driver Output Rise Time
R
LOAD
= 54
C
LOAD
= 50 pF
Driver Common Mode
Voltage
Receiver Sensitivity
-7
≤
Vcm
≤
+12
Receiver Common-Mode
Voltage Range
Receiver Input Resistance
Parameter
Min
1.5
-1.5
1.5
-1.5
Max
Units
V
V
V
V
mA
6
-6
5
-5
R
LOAD
= 54
Per output to
±250
30
% of Bit Width
R
LOAD
= 54
-1
3
V
±200
+12
mV
V
-7
12K
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相關代理商/技術參數 |
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| RS485-232 | 制造商:PR 功能描述: |
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| RS485-C1(EU) | 制造商:Equinox Technologies 功能描述:RS232/RS485 CONV (EU) |
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| RS485-C1(US) | 制造商:Equinox Technologies 功能描述:RS232/RS485 CONV (US) |
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