Description
EMERSON DELTAV
12P3232X132
SIS NET REPEATER
KJ2221X1-BA1
REV.P
P140478510
0022E52261CA
INPUT POWER RATING: 24VDC, 300mA MAX
AMBIENT TEMPERATURE: -40 TO 70C
FISHER-ROSEMOUNT SYSTEMS
The Emerson DeltaV KJ2221X1-BA1 is a Safety Instrumented System (SIS) Net Repeater designed to extend and maintain reliable network communication across DeltaV SIS architecture. Forming a critical part of the safety loop infrastructure, this repeater ensures signal integrity across safety network segments onboard vessels where control system reliability directly impacts operational safety and regulatory compliance. As a Marine Control System component, it supports the distributed safety logic and network topology required in demanding offshore and commercial marine environments.
Key Features
✓ Functions as a network repeater within the DeltaV SIS platform, regenerating and extending safety network signals to maintain communication integrity across system segments.
✓ Rated at 24VDC input with a maximum current draw of 300mA, and designed to operate across an ambient temperature range of -40°C to +70°C, reflecting its suitability for harsh installation environments.
✓ Compatible with Emerson DeltaV Safety Instrumented System controllers and network infrastructure as part of the Fisher-Rosemount Systems product family — broader system compatibility subject to confirmation against specific DeltaV revision and configuration.
✓ Suitable for installation in control panels, equipment rooms, or cabinet-mounted locations typical of marine automation and safety system installations; SOLAS relevance depends on the specific vessel safety system configuration.
✓ As a direct replacement or spare component, referencing the part number KJ2221X1-BA1 and revision level is recommended when confirming cross-compatibility or sourcing a like-for-like replacement within an existing DeltaV SIS network.
Marine Applications
✓ Offshore platforms and FPSOs where DeltaV SIS networks govern emergency shutdown and safety instrumented functions across distributed process areas.
✓ LNG carriers and gas tankers requiring robust, fault-tolerant safety network communication between SIS controllers and field devices.
✓ Large commercial vessels and cruise ships utilising Emerson DeltaV-based integrated automation and safety systems for machinery and cargo monitoring.
✓ Drillships and semi-submersibles where safety network repeaters maintain communication integrity across extended or segmented SIS topologies.
✓ Marine terminals and vessel control rooms where DeltaV SIS architecture supports fire & gas, high-integrity pressure protection, or process safety functions.
Why Marine Engineers Choose
The Emerson DeltaV SIS Net Repeater is a purpose-built component for safety-critical network infrastructure, offering a known revision level, defined operating ratings, and direct compatibility within the DeltaV SIS ecosystem — making it a reliable choice for maintenance, system expansion, or spare holding aboard vessels reliant on Emerson automation platforms.
Ideal For
Offshore production vessels, LNG and gas tankers, drillships, FPSOs, large commercial ships, and any marine or offshore installation operating Emerson DeltaV Safety Instrumented Systems requiring network segment extension or repeater replacement.
Technical Support & Compliance
Technical support is available to assist with remote troubleshooting, onboard commissioning guidance, integration into existing DeltaV SIS networks, and retrofit or upgrade planning. Compatibility with a specific vessel’s control system configuration is subject to confirmation. To verify suitability, buyers are advised to share nameplate photographs, the full part number and revision, DeltaV system version, relevant loop or network drawings, and vessel name or IMO number where applicable. Repair and bench testing services may be available subject to scope and assessment.
