Description
Product Introduction
The Foxboro P0916DB (RoHS designation RH916DB) is a specialized Type 1 termination cable assembly designed for the Foxboro 200 Series I/O subsystem. Serving as the critical signal path between FBM baseplates (such as the P0914XB or P0916BX) and field marshalling terminal blocks, the P0916DB eliminates manual point-to-point wiring between I/O cards and field landing strips.
Constructed with factory-molded multi-pin connectors and heavy-duty noise shielding, the P0916DB ensures low signal distortion for precision analog inputs, outputs, and discrete field loops. The pre-tested factory harness dramatically reduces cabinet assembly time and eliminates field wiring misconfiguration during system expansions and revamps.
Key Technical Specifications
| Parameter | Value |
| Manufacturer | Foxboro (Invensys / Schneider Electric) |
| Part Number | P0916DB (RoHS Equivalent: RH916DB) |
| Series | Foxboro 200 Series Subsystem |
| Cable Type | Type 1 FBM Termination Cable |
| Standard Length | 1 Meter (~3.3 feet / 40 inches) |
| Conductor Gauge | 26 AWG Shielded Multi-Conductor Wiring |
| Connector Form Factor | Dual multi-pin heavy-duty keyed connectors with retention screws |
| Operating Temp Range | -20°C to +70°C (-4°F to +158°F) |
Application Scenarios & The “Trench” Experience
The Trench Story
During a turnaround at an ethylene cracker unit, technicians were replacing legacy marshalling panels with modern DIN-rail Termination Assemblies (TAs). Hand-wiring 128 analog channels would have taken days and introduced significant risk of wiring errors. By utilizing pre-fabricated P0916DB Type 1 termination cables, the instrumentation team plugged one end directly into the 200 Series FBM baseplate multi-pin receptacles and the other into the corresponding TAs. The entire 128-channel bank was landed and loop-tested in under two hours without a single swapped conductor.
Target Application Scenarios
- Cabinet-to-Cabinet Marshalling: Bridges I/O module signals from central baseplate racks to dedicated field wiring marshalling bays.
- System Migration Projects: Facilitates fast cutover from legacy Foxboro I/A Series nests or third-party termination blocks to 200 Series TAs.
- High-Density Analog & Discrete Signals: Passes isolated 4-20mA, HART, thermocouple, and discrete logic signals reliably without noise coupling.
P0916DB
P0916DB
Transparency SOP: Quality Assurance & Testing
Every P0916DB cable assembly undergoes a strict 5-stage workbench validation process prior to dispatch:
- Inbound Mechanical & Pin Inspection: High-magnification check of connector pins, locking screws, strain-relief boots, and cable jacketing for pin bending, corrosion, or outer sheath wear.
- Automated Point-to-Point Continuity Testing: High-speed cable tester checks every conductor against the Type 1 wiring pinout matrix to confirm 100% path continuity.
- Cross-Conductor Short & Insulation Test: High-voltage megohmmeter (hipot) test between adjacent pins and shield ground drain wires to detect micro-shorting or insulation breakdown.
- Live Baseplate Loop Pass-Through Test: Connected to a live 200 Series baseplate and Termination Assembly loaded with an active FBM to confirm clean analog/discrete signal delivery under real operating loads.
- Anti-Static Packaging: Cleared cables are wiped with solvent-free contact cleaner, coiled to factory bend radius limits, and sealed in heavy anti-static ESD protective bags.
The Veteran’s Tech Trap Guide
- ⚠️ Match Cable Type to FBM / TA Specifications (Type 1 vs. Type 2/3):
The is a Type 1 termination cable. Always verify that your Fieldbus Module (FBM) and Termination Assembly (TA) require a Type 1 cable wiring pinout rather than Type 2, Type 3, or bypass cables.
- ❗ Respect Minimum Cable Bend Radii:
Avoid tight 90-degree bends right at the connector boot. Sharp bends can stress internal solder joints or crimp pins, leading to intermittent open circuits during cabinet thermal cycling.
- ⚠️ Tighten Connector Retention Screws:
Always hand-tighten the connector thumbscrews onto the baseplate and TA receptacles. Loose connectors can back out under plant vibration, tripping critical process control loops.
- ❗ Check RoHS Part Numbers ( vs. RH916DB):
is the standard Foxboro hardware part number, while
RH916DBis Schneider Electric’s RoHS-compliant equivalent. Both are 100% functionally and pin-for-pin identical.
Frequently Asked Questions (FAQ)
Q: What is the primary function of the Foxboro cable?
A: The is a 1-meter Type 1 pre-fabricated termination cable that connects Foxboro 200 Series FBM baseplates to DIN-rail Termination Assemblies (TAs) for clean signal routing.
Q: What is the difference between and RH916DB?
A: “” is the standard Foxboro hardware part number, and “RH916DB” is Schneider Electric’s RoHS-compliant (lead-free) equivalent. They are completely interchangeable in function, wiring pinout, and connector form factor.
Q: Can I use a Type 1 cable like for any 200 Series FBM?
A: No. You must verify that the specific FBM card model and target Termination Assembly (TA) call for a Type 1 interconnect cable according to Foxboro’s subsystem wiring guides.
Q: What warranty covers these pre-tested cable assemblies?
A: Every / cable assembly includes a full 12-Month Functional Warranty. If the cable experiences a continuity or signal failure under normal operating parameters within 365 days, an immediate replacement or credit is provided.
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