The Emerson KJ2221X1-BA1 is a SISNet Repeater Module designed for DeltaV™ Safety Instrumented Systems. It extends communication distances and boosts signal integrity. This module performs well in environments with high electromagnetic interference. Industries like oil & gas, chemical processing, and industrial automation rely on it for long-distance communication and signal isolation.

Technical Specifications

Model Number: KJ2221X1-BA1

Function: SISNet signal repeater that extends range and isolates signals

Power: Local Bus Power 24 VDC at 300 mA (max)

Operating Temperature: –40°C to +70°C

Storage Temperature: –40°C to +85°C

Shock Resistance: 10g half-sine wave for 11 ms

Vibration: 1 mm peak-to-peak (2–13.2 Hz), 0.7g (13.2–150 Hz)

Airborne Contaminants: Meets ISA-S71.04 –1985 Class G3

Humidity: 5% to 95%, non-condensing

Weight: 0.69 lbs