Honeywell 51308112-008 LCN Coax Cable Set 8M Rev D | Replacement, Equivalent & Selection Guide
The Honeywell 51308112-008 is an 8-meter LCN (Local Control Network) Coaxial Cable Set (Revision D) designed for use in Honeywell TDC 3000 Distributed Control Systems. This cable set provides the critical communication link between LCN nodes, ensuring reliable high-speed data transmission in process automation environments. Konmask.com supplies genuine and compatible-grade units to support your DCS maintenance and spare parts strategy.
Technical Specifications
- Part Number: 51308112-008
- Revision: Rev D
- Description: LCN Coaxial Cable Set
- Cable Length: 8 Meters
- Cable Type: Coaxial (RG-type, shielded)
- Application: Local Control Network (LCN) node interconnection
- Compatible System: Honeywell TDC 3000 DCS
- Connector Type: BNC / proprietary LCN termination
- Weight: Approx. 1,060 g
- Manufacturer: Honeywell Process Solutions
- Country of Origin: USA
Compatible Replacement & Equivalent Models
When sourcing a replacement for the 51308112-008, the following models and configurations may serve as functional equivalents depending on your system layout and cable routing requirements:
- 51308112-004 – LCN Coax Cable Set, 4M (shorter run alternative)
- 51308112-012 – LCN Coax Cable Set, 12M (longer run alternative)
- 51308112-020 – LCN Coax Cable Set, 20M (extended distance)
- 51304485-100 – LCN Tap Cable Assembly (node tap replacement)
- Custom-length RG-6/U or RG-59/U coaxial assemblies with BNC termination (field-fabricated equivalent, verify impedance match)
Note: Always verify revision compatibility and connector pinout before substitution. Contact Konmask.com for cross-reference validation.
Why Choose the Original Model
- Revision D compliance: Rev D incorporates updated shielding and connector specifications validated by Honeywell engineering for TDC 3000 LCN integrity.
- Guaranteed impedance matching: Factory-terminated to exact LCN network impedance specifications, eliminating signal reflection risks.
- Plug-and-play installation: Pre-assembled set with no field termination required, reducing installation time and error risk.
- Traceability: Genuine units carry Honeywell part traceability for regulated industries (oil & gas, nuclear, pharma).
Typical Applications
- Honeywell TDC 3000 LCN node-to-node interconnection
- DCS cabinet internal wiring and node expansion
- Replacement of degraded or damaged LCN coax in existing installations
- Spare parts inventory for process plant maintenance programs
- Refurbishment of legacy TDC 3000 control rooms in oil & gas, refining, and chemical plants
System Compatibility
- Primary System: Honeywell TDC 3000 (all generations)
- Network: Local Control Network (LCN) — 5 Mbit/s token-passing coax network
- Compatible Nodes: AM (Application Module), HM (History Module), GW (Gateway), NIM (Network Interface Module), UCN Gateway
- Not compatible with: Honeywell Experion PKS Ethernet-based networks (different physical layer)
Selection Guide
Use the table below to select the correct cable length for your LCN segment:
- ≤ 4M node spacing: 51308112-004
- ≤ 8M node spacing: 51308112-008 (this model)
- ≤ 12M node spacing: 51308112-012
- ≤ 20M node spacing: 51308112-020
Key selection criteria: measure the physical cable routing distance (not straight-line distance) between LCN nodes including cabinet entry/exit bends. Add 10–15% slack allowance. Do not exceed maximum LCN segment length as specified in Honeywell TDC 3000 LCN Design Guide.
Quality Assurance & Sourcing
- All units at Konmask.com are inspected for physical integrity, connector condition, and shielding continuity prior to dispatch.
- Sourced from authorized distributors, decommissioned plant surplus (tested), or OEM-equivalent manufacturers.
- Certificates of conformance (CoC) and test reports available upon request for regulated applications.
- Packaging: anti-static bag + foam-lined carton for safe international shipping.
How to Order
- Part Number: 51308112-008
- Minimum Order: 1 unit
- Lead Time: In-stock units ship within 1–3 business days; sourced units 2–4 weeks.
- Payment: T/T, PayPal, credit card accepted.
- Shipping: DHL / FedEx / UPS worldwide express available.
- RFQ: Email support@konmask.com or call +0086 19859288691 for bulk pricing and availability confirmation.
Replacement & Compatibility FAQ
Q: Can I use a standard RG-6 coax cable as a replacement?
A: Field-fabricated RG-6/U cables can function as a temporary substitute if terminated with correct BNC connectors and matched to LCN impedance, but factory-assembled Honeywell sets are strongly recommended for permanent installations.
Q: Is Rev D backward compatible with earlier TDC 3000 LCN installations?
A: Yes. Rev D is a drop-in replacement for Rev A/B/C variants of 51308112-008. The revision reflects manufacturing improvements, not functional changes.
Q: What is the maximum number of nodes on a single LCN coax segment?
A: Honeywell specifies a maximum of 64 nodes per LCN segment. Cable length and tap spacing must comply with TDC 3000 LCN Design Guide limits.
Q: Do you supply the full LCN cable set including taps and terminators?
A: Yes. Contact us for complete LCN cable assembly kits including tap assemblies (51304485-100) and 75-ohm terminators.
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