The Honeywell 51308112-003, also cataloged as the 51308112 coaxial cable, operates as an RG11 interconnect with ferrite filters for Local Control Network (LCN) node communication in Honeywell DCS systems.
Hardware Specifications
Parameter
Specification
Model
51308112-003
Brand
Honeywell
Origin
Not specified
Weight
Not specified
Dimensions
Length 3 m
Operating Temp
Industrial-grade range (not specified)
Power Consumption
Passive cable, no electrical load
Cable Type
RG11 coaxial with ferrite filters
Application
LCN node communication interconnection
Replacement Note
Replaces 51109181-003 (without ferrites)
4-20 mA HART Loop Protocol
The 51308112-003 cable integrates with Honeywell LCN infrastructure, supporting deterministic communication between nodes. Ferrite filters suppress high-frequency interference, ensuring stable 4-20 mA HART loop signaling and maintaining channel-to-channel isolation across distributed control networks.
Frequently Asked Questions
Q: Can the 51308112-003 be substituted with 51109181-003? A: No. The 51109181-003 lacks ferrite filters; substitution may degrade EMI suppression and signal integrity.
Q: Does the cable require calibration before installation? A: No. It is a passive interconnect; installation requires only proper connector seating and shielding verification.
Q: What grounding practice is recommended? A: Ground the shield at the controller end only to prevent ground loops and induced noise.
Field Installation Guidelines
Route coaxial cable away from high-voltage conductors to minimize EMI/RFI interference.
Maintain shield continuity and ground only at the LCN controller termination point.
Verify connector engagement with ferrite filter assemblies before energizing the system.
Avoid excessive bending radius to preserve insulation and shielding integrity.
Inspect cable jacket and ferrite assemblies for damage prior to commissioning.
