Mitsubishi Push-Button Expansion Board P235083B181G01

Mitsubishi Push-Button Expansion Board P235083B181G01 is used in Mitsubishi elevator car operating panel and cabin push-button signal applications.

This board is usually installed inside the elevator COP or cabin button control area, where it supports car button command input, push-button signal expansion, and related car call registration functions.

In the elevator spare parts market, this product may also be searched as:

• Mitsubishi Elevator Cabin Push Button Board
• Mitsubishi Car Button Expansion Board
• Mitsubishi Elevator Push-Button Expansion Board
• Mitsubishi COP Button Board
• Mitsubishi Elevator Button PCB Board
• Mitsubishi Elevator Circuit PCB Board

The main model reference for this page is:

• P235083B181G01

Related model references may include:

• P235083B181G02
• P235083B181G03
• P235083B181G04
• P235083B181G05
• P235083B181G06

These model references are useful for search coverage and quotation confirmation. However, different G versions should not be treated as automatically interchangeable without checking the original board label, connector layout, and COP configuration.

COP Button Signal Application

P235083B181G01 should be understood as a cabin push button board or car button expansion PCB, not a single elevator push button.

It may be checked when the elevator has problems such as:

• car button not responding
• partial COP buttons failing
• car call not registering
• button indicator not lighting
• unstable push-button signal
• connector or wiring problem inside the COP
• visible PCB damage

These symptoms may also come from the push button itself, COP wiring harness, connector terminals, power supply, or related communication board. For this reason, technicians usually check the complete COP signal path before confirming the PCB fault.

What Buyers Should Confirm

Before ordering Mitsubishi Push-Button Expansion Board P235083B181G01, please check:

• Complete P235083B181G01 marking
• Whether the old board shows G02, G03, G04, G05, or G06 version
• Front and back photos of the PCB
• Connector quantity and direction
• COP installation position
• Old car operating panel photo
• Existing button fault description
• Nearby board numbers if visible

This information helps confirm whether the required part is P235083B181G01 or another related Mitsubishi car button expansion board version.

Practical Replacement Notes

Do not select this board only by appearance.

Mitsubishi COP button boards may look similar, but different versions can have different connector layouts, supported button quantities, signal definitions, or panel configurations.

Before installation, technicians should compare the old and new PCB carefully and check the button harness, connector oxidation, power supply condition, and related COP communication circuit.

For overseas buyers, sending clear photos of the original P235083B181G01 board and the complete COP panel before shipment is the safest way to reduce wrong supply.