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7 mA @ 120 VDC (per channel) Input Current (Max) 7 mA per channel Withstanding Voltage 2 kV AC (input to system
Relay configuration: Normally energized design for fail-safe operation
internal system supervision
Verify connector orientation before insertion to prevent pin damage
Serial Communication Module | Yokogawa ALR121-SE1 Field Control Unit 7 mA @ 120 VDCYokogawa ALR121 SE1 Serial Communication Module The Yokogawa ALR121 SE1, also cataloged as the ALR121 Serial Communication Module, operates as a dedicated hardware component for RS 422 RS 485 data exchange within Yokogawa FCS and distributed I O networks. Hardware Specifications Parameter Specification ModelBrand Yokogawa ALR121 SE1 Origin Japan Weight 0. 30 kg Dimensions 100 x 160 x 30 mm (3. 94 x 6. 30 x 1. 18 in) OperatingTemp 20 to +60 degC
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