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- P0916NK
- HDLC Base-to-Base Cable
- USA
- 0.12 meters
- 3 kg
- Xiamen, China
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Product Overview
The Foxboro P0916NK is a short HDLC communication cable used to connect compatible base-to-base interfaces in Foxboro I/A Series control systems. It has a 9-pin male connector at each end and a nominal cable length of 5¼ inches, approximately 0.12 meters. The assembly is associated with 2 Mbps base-to-base communication between compatible Foxboro system components. <Cite refs={[“turn790369search1″,”turn790369search2”]}/>
In a distributed control system, communication between hardware bases allows designated system components to exchange data through their supported interfaces. The P0916NK provides the physical connection for this link. Its short length is suited to closely positioned connection points, where a long cable would add unnecessary slack and complicate cable routing.
During cabinet maintenance, this cable may need attention if a base-to-base communication fault appears after hardware has been moved, replaced, or reconnected. A connector that is not fully seated, damaged contacts, or a broken conductor can interrupt the communication path even when the connected hardware remains operational.
The P0916NK is a passive communication cable, not an active network switch or protocol converter. Its function is to carry the electrical signals between compatible interfaces. The connected equipment determines the communication protocol, timing, and data handling, so the cable should be selected by its complete part number and interface requirements rather than connector appearance alone.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Foxboro |
| Model | P0916NK |
| Product Family | I/A Series |
| Product Type | 9-Pin HDLC Base-to-Base Cable |
| Communication Protocol | HDLC |
| Communication Rate | 2 Mbps |
| Connector A | 9-pin male |
| Connector B | 9-pin male |
| Cable Length | 0.12 meters |
| Connection Type | Base-to-base communication |
| Operating Function | Electrical data transmission |
| Shipping Weight | 3 kg |
Product Features
- HDLC communication link: Supports the designated base-to-base data connection in compatible I/A Series configurations.
- Dual 9-pin male connectors: Provides matching connector interfaces at both ends.
- Short cable assembly: Suits closely positioned hardware bases and reduces excess cable slack.
- Passive signal path: Carries communication signals without independent data processing or signal regeneration.
- Direct replacement: Allows a matching cable to be replaced without changing the communication architecture.
- Cabinet-level integration: Fits applications where base-to-base connections must remain organized and accessible for service.
Working Principle
The P0916NK establishes a direct electrical path between two compatible 9-pin base interfaces. When the connected system exchanges HDLC data, the cable carries the electrical signals between the two endpoints.
Foxboro Base Interface A → P0916NK Cable → Foxboro Base Interface B
The cable does not generate or interpret HDLC messages. Communication depends on the connected hardware, the assigned interface functions, and the correct electrical connection. The specified communication rate and interface arrangement must be supported by both endpoints.
Because the assembly is short, connector alignment and mechanical strain deserve particular attention. If the connected bases are positioned too far apart, pulling the cable taut can stress the connector housings or contacts. Conversely, forcing the cable into a tight bend can damage the cable assembly or interfere with secure connector engagement.
When a communication fault occurs, inspect both connectors and the cable before replacing active control hardware. Check that the correct interfaces are connected, the connector fasteners are secure, and the cable has not been crushed or strained during cabinet work.
Role in the Foxboro I/A Series Communication Architecture
The P0916NK occupies the physical connection layer between compatible base interfaces. It supports the communication path, while the connected system hardware handles data exchange and control-system functions.
I/A Series Base A → P0916NK → I/A Series Base B → Connected Control-System Hardware
| System Element | Function |
|---|---|
| P0916NK | Carries HDLC signals between compatible base interfaces |
| Base Interface A | Provides one endpoint of the communication link |
| Base Interface B | Provides the other endpoint of the communication link |
| I/A Series Control Hardware | Performs the assigned control-system functions |
| Connector Fasteners | Secure the cable at the mating interfaces |
| Cabinet Wiring Arrangement | Maintains separation and routing of communication and power connections |
Industrial Applications
| Application | Practical Use |
|---|---|
| I/A Series Control Cabinets | Connecting compatible base interfaces within an established cabinet layout |
| Distributed Control Systems | Maintaining designated base-to-base communication links |
| Process Automation Plants | Supporting communication connections in installed I/A Series systems |
| Chemical Processing Facilities | Maintaining control-system communication hardware |
| Oil and Gas Control Systems | Supporting compatible hardware interconnections |
| Power Generation Facilities | Replacing a matching cable during planned maintenance |
| Control Cabinet Refurbishment | Restoring a base-to-base connection after hardware replacement |
| Communication Fault Diagnosis | Checking the physical connection when an HDLC link becomes unstable |
Installation and Maintenance
- Verify the part number: Confirm P0916NK and check that the replacement matches the installed cable reference.
- Identify both endpoints: Confirm the designated base interfaces before disconnecting the existing assembly.
- Check connector compatibility: Verify the 9-pin male connector arrangement at both ends and the required mating interfaces.
- Follow the maintenance procedure: Apply the system’s prescribed isolation or communication-maintenance procedure before disconnecting the cable.
- Inspect the cable jacket: Look for cuts, crushing, sharp bends, or other mechanical damage.
- Examine connector contacts: Check for bent pins, contamination, corrosion, and damaged connector housings.
- Protect the connector interfaces: Avoid forcing the plugs into the mating sockets or tightening fasteners beyond the specified requirements.
- Maintain suitable routing: Prevent the cable from being stretched tightly between the bases or trapped beneath adjacent equipment.
- Reconnect both ends: Confirm that each connector is fully seated and secured at its designated interface.
- Inspect nearby wiring: Check that the cable is not pinched by cabinet doors, mounting hardware, or neighboring components.
- Verify communication: Check the relevant system status indications and confirm that the communication fault has cleared.
- Record the maintenance work: Document the replacement reference, connection points, inspection findings, and post-maintenance test results.
Compatible System Components
| Component | Function |
|---|---|
| Foxboro P0916NK | Provides the 9-pin HDLC base-to-base connection |
| Compatible I/A Series Base Assembly | Provides the physical interface for the communication cable |
| I/A Series Control Hardware | Performs the assigned control and data-handling functions |
| Compatible Base Interface | Terminates one end of the cable connection |
| Compatible Remote Base Interface | Terminates the opposite end of the communication link |
| Connector Retaining Hardware | Helps secure the cable at the mating interfaces |
| Control Cabinet Wiring | Routes communication connections between installed components |
| System Status Interface | Allows maintenance personnel to check communication status where supported |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Foxboro P0916NK | 9-Pin HDLC Base-to-Base Cable | Replacement of the same cable assembly |
| Foxboro I/A Series Base Assemblies | Control-System Base Hardware | Providing the mating interfaces for compatible base connections |
| Foxboro I/A Series Control Processors | Control Processor | Executing control logic and coordinating system operation |
| Foxboro I/A Series Fieldbus Modules (FBMs) | Fieldbus Module | Handling process input and output signals |
| Foxboro I/A Series Communication Interfaces | Communication Interface | Supporting data exchange between compatible system components |
| Foxboro I/A Series System Baseplates | Modular Baseplate | Housing and interconnecting supported control-system hardware |
Key Advantages
- Provides a dedicated HDLC communication path between compatible base interfaces.
- Uses matching 9-pin male connectors at both ends.
- Supports short-distance connections within established I/A Series installations.
- Allows a matching cable to be replaced without redesigning the communication architecture.
Technical FAQs
What is the function of the P0916NK in an I/A Series installation?
It provides a physical HDLC communication connection between compatible system bases. The connected hardware handles the actual communication protocol and data processing.
Are both connectors on the P0916NK male?
Yes. The assembly is specified with a 9-pin male connector at each end. The mating interfaces must therefore have the corresponding compatible connector arrangement.
Why might a communication fault occur after the cable has been reconnected?
Possible causes include a connector that is not fully seated, bent pins, damaged conductors, or connection to the wrong interface. Check the cable and both endpoints before replacing active system hardware.
Can a longer 9-pin cable be substituted for the P0916NK?
Not automatically. The replacement must match the required pinout, electrical characteristics, and interface requirements. Cable length and connector compatibility alone do not establish suitability for the HDLC connection.