Introduction

The Foxboro RH916MZ Base-To-Base Cable is a factory-qualified updated interconnection spare for Foxboro I/A Series DCS redundant base station assemblies. This fixed 1-meter shielded multi-conductor cable links paired base stations and baseplates inside control room cabinets. It preserves the precise electrical parameters required for reliable redundancy handshaking and seamless primary/standby switchover during hardware faults. This cable is widely stocked as maintenance inventory for process control facilities and used during cabinet restructuring, baseplate replacement and routine DCS system overhauls. All installation activities must adhere strictly to Foxboro official documentation covering cable routing, conductor separation and shielding grounding practices.

Technical Specifications

表格

Parameter	Value
Model	RH916MZ
Product Type	Base-To-Base Cable
Nominal Cable Length	1 m
Cable Construction	Shielded multi-conductor signal cable
Installation Location	Indoor sealed control cabinet
Operating Ambient Temperature	-20°C ~ +80°C
Shipping Weight	3.00 kg / 6.61 lb

Recommended Related Models

Foxboro P0914WN Base Station Power Cable
Foxboro P0907CA Base Station Grounding Cable
Foxboro RH917JJ Base Station-to-Base Station Cable (0.5m)

Popular Related Models

Foxboro P0916MZ Base-To-Base Cable (1m)
Foxboro RH916ND Base Station-to-Base Station Cable (0.25m)
Foxboro P0917JJ Base Station-to-Base Station Cable (0.5m)

Applications

The Foxboro RH916MZ Base-To-Base Cable is a factory-updated replacement spare for Foxboro I/A Series distributed control systems. It is installed inside enclosed control cabinets to establish dedicated communication paths between redundant base station and baseplate pairs. This hardware serves continuous process industries including thermal power generation, petroleum refining, chemical complexes, pulp and paper operations, and municipal water treatment DCS panels. Typical use cases cover spare part inventory turnover, control cabinet rack reorganisation, scheduled plant shutdown maintenance, and DCS hardware retrofit projects that require factory-verified base-to-base cabling for redundancy synchronization.

Advantages

RH916MZ is the revised iteration corresponding to legacy P0916MZ, maintaining the Foxboro-defined impedance and signal timing required for stable I/A Series base station redundancy communication. Its fully shielded multi-conductor design suppresses electromagnetic interference from nearby variable frequency drives and high-current power circuits, protecting critical synchronization data. Factory-terminated connectors retain the official pin assignment, eliminating wiring faults introduced by field-built cable assemblies. Each cable completes continuity and signal integrity testing before leaving the factory. The fixed 1-meter length suits rack layouts with wider separation between baseplate units and complies fully with Foxboro I/A Series cabling standards for redundant communication links.

Technical FAQs

Q: What DCS platform is RH916MZ designed for? A: It is exclusively built for Foxboro I/A Series DCS, for communication links between redundant base stations and baseplates.
Q: What signal types are transmitted over this base-to-base cable? A: It carries digital synchronization, operational status and handshake signals to support automatic primary-to-standby failover between paired base station hardware.
Q: Can multiple RH916MZ cables be cascaded to extend the distance between base stations? A: Cascading multiple cables is not permitted. I/A Series base station communication enforces strict timing and impedance rules; cascading degrades signal integrity and causes unpredictable redundancy switching.
Q: Can RH916MZ be used to connect FBM field modules to field transmitters or process sensors? A: No. This is a dedicated baseplate interconnection cable and cannot be deployed for analog or discrete field instrument I/O wiring.
Q: What installation locations are approved for RH916MZ? A: Installation is limited to indoor sealed control cabinets. It is not rated for outdoor exposure, wet environments or hazardous classified field zones.
Q: What issues may occur if the cable is routed in parallel with high-current AC power cables? A: Parallel routing introduces EMI noise, disrupts synchronization signals and may trigger intermittent base station communication link dropouts.
Q: Can damaged RH916MZ cable connectors be re-crimped and repaired on-site by maintenance teams? A: Field re-termination is not authorized. Factory-terminated connectors are part of the qualified assembly; on-site modification changes electrical performance and invalidates factory compliance verification.
Q: What diagnostic notification will the I/A Series system produce when this base-to-base cable link fails? A: Once connectivity is lost, the I/A Series HMI logs base station communication fault alarms to alert plant operators of the disrupted inter-baseplate path.
Q: Can RH916MZ directly replace other Foxboro base-to-base cables with different part numbers? A: Direct cross-substitution is prohibited. Different part numbers use unique pinouts, conductor specifications and fixed lengths that do not match system electrical requirements.
Q: Does RH916MZ transmit DC power supply signals between connected base station hardware? A: No. It only transmits digital synchronization communication signals and does not carry power supply circuits between base stations.