Specifications

Appendix A - EIA Specification Summary RS-422 And RS-485 Applications Ebook
Page 85 of 137 Manual Documentation Number: <DocNumber>
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EIA Specification Summary
The following tables bring together the most important specifications
and information for the EIA/TIA-232, 422, 423, and 485 standards.
EIA-422 Specifications
EIA RS-422 Specification Summary
Parameter
Conditions
Min
Max
Units
Driver Output Voltage
Open Circuit
10
-10
V
V
Driver Output Voltage Loaded
RT = 100 ohms
2
-2
V
V
Driver Output Resistance
A to B
100
ohms
Driver Output
Short-Circuit Current
Per output to
common
±150
mA
Driver Output Rise Time
RT = 100 ohms
10
% of Bit Width
Driver Common Mode Voltage
RT = 100 ohms
±3
V
Receiver Sensitivity
Vcm = -7 to +7v
±200
mV
Receiver Common-Mode Voltage Range
-7
+7
V
Receiver Input Resistance
4000
ohms
Differential Receiver Voltage
Operational:
Withstand:
±10
±12
V
V
APPENDIX A