Description
Product Overview
The MRC PM-271 Microphone Control Unit is a marine public address and general alarm (PA/GA) system component associated with the MRC MPA-5400A platform. It is designed for microphone control and operator access to the vessel’s audio announcement system.
The PM-271 is used in marine communication applications where clear announcements and coordinated audio control are important. It is suitable for shipboard maintenance, marine electronics servicing, and replacement-part sourcing when the installed unit requires repair or replacement.
Before ordering, verify the model marking, connector arrangement, and system configuration to ensure compatibility with the existing MPA-5400A installation.
MPA-5400A PM-271
Key Features
- Brand: MRC
- Model: PM-271
- Associated System: MPA-5400A
- Product Type: Microphone Control Unit
- Application: Marine public address and general alarm systems
- Primary Function: Microphone and announcement control
- Installation Environment: Marine electronic equipment
- Maintenance Use: Replacement and repair of compatible PA/GA equipment
- Compatibility: Confirm against the existing unit and system documentation
Datasheet
| Parameter | Details |
|---|---|
| Brand | MRC |
| Model | PM-271 |
| Series | MPA-5400A |
| Product Name | Microphone Control Unit |
| Place of Manufacture / Origin | Not confirmed |
| Product Status | Used; confirm the condition of the specific item |
| Dimensions | Not confirmed |
| Weight | Not confirmed |
| Country of Origin | Not confirmed |
| Power Requirements | Not confirmed |
| Discontinued | Not confirmed |
Frequently Asked Questions
Q1: What is the MRC PM-271?
A: It is a microphone control unit associated with the MRC MPA-5400A marine PA/GA system.
Q2: What is its main application?
A: It is used for microphone-related control in a marine public address and general alarm system.
Q3: Is the PM-271 a complete PA/GA system?
A: No. It is a control unit intended to operate as part of a compatible system.
Q4: Is the PM-271 compatible with the MPA-5400A?
A: It is listed as an MPA-5400A microphone control unit. Confirm the equipment revision and connection details before installation.
Q5: What are its electrical specifications?
A: The operating voltage, current requirements, and connector pinout have not been confirmed. Consult the system documentation before connecting power.
Q6: Does it include a microphone?
A: The product identification alone does not confirm whether a microphone or accessories are included. Check the seller’s item description and photographs.
Q7: What should I check before purchasing?
A: Verify the PM-271 model marking, physical condition, connectors, included accessories, and compatibility with the installed MPA-5400A system.
Q8: Who should install the unit?
A: A qualified marine electronics technician should perform installation and functional testing according to the equipment manufacturer’s procedures.
Related Products and Equipment Categories
The following MRC models and product categories are associated with marine PA/GA equipment and the MPA-5400A system. They are sourcing references, not guaranteed direct replacements for the PM-271.
- MRC MPA-5400A — Marine PA/GA System
- MRC P58036C — Main Control PCB for MPA-5400A
- MRC P53026 — Alarm Generator Function Board
- MRC P58063C — Main Terminal Board PCB
- MRC P53019 — Microphone Control Relay for MPA-5400A
- MRC PA-271 — Power Amplifier Unit
- MRC PC-271 — Main Control Unit
- MRC P53014 — Speaker Control PCB
- MRC P48005 — Call Signal Oscillator PCB
- MRC P53038A — 4-Relay PCB
- MRC PS-900 — Intrinsically Safe Power Supply
- MRC DB-4 — Distribution Box
- MRC RB-25 — Relay Box
- Marine Microphone Control Units
- Marine Public Address and General Alarm System Components
