User Manual
  AS-Interface 
  9.6 Connecting 
SIRIUS ACT 3SU1 pushbuttons and signaling devices 
System Manual, 02/2015, A5E03457306020A/RS-AB/002 
191 
Terminal labeling 3SU1400-2EA10-6AA0 
Pin 
X1 
X2 
1  F-IN1  Fail-safe digital input  ASI+  AS-i connection – positive polarity 
2 
F-IN1 
Fail-safe digital input 
ASI+ 
AS-i connection – positive polarity 
3  F-IN2  Fail-safe digital input  ASI-  AS-i connection – negative polarity 
4 
F-IN2 
Fail-safe digital input 
ASI- 
AS-i connection – negative polarity 
Terminal labeling 3SU1401-2EE20-6AA0 
Pin 
X1 
X2 
1 
F-IN1 
Fail-safe digital input 
ASI+ 
AS-i connection – positive polarity 
2  F-IN1  Fail-safe digital input  ASI+  AS-i connection – positive polarity 
3 
F-IN2 
Fail-safe digital input 
ASI- 
AS-i connection – negative polarity 
4 
F-IN2 
Fail-safe digital input 
ASI- 
AS-i connection – negative polarity 
Conductor cross-sections (3SU1400-2EA10-6AA0 and 3SU1401-2EE20-6AA0) 
SZM (∅ 2.0 mm x 0.4 
mm) 
— 
1 x 0.14 ... 0.5 mm² 
1 x 0.2 ... 0.5 mm² 
AWG 
26 to 20 










