Xizi Otis Elevator LOP XHB21-A/S XOA317AAG001

Xizi Otis Elevator LOP XHB21-A/S XOA317AAG001 is used in elevator landing call operation and landing operating panel replacement applications.

This product is normally installed on the landing side of a Xizi Otis or Hangzhou Otis elevator system. It allows passengers to call the elevator from each floor and works together with the elevator control system, button circuit, indicator circuit, and landing signal wiring.

In elevator maintenance and spare parts purchasing, this product may be searched under several different names:

• Xizi Otis Elevator LOP
• Hangzhou Otis Elevator LOP
• Xizi Otis Landing Operating Panel
• Xizi Otis Landing Call Panel
• Xizi Otis Hall Call Button Panel
• Elevator LOP Panel
• Elevator Landing Button Panel
• XHB21-A/S LOP
• XOA317AAG001 LOP

The main model references for this page are:

• XHB21-A/S
• XHB21 AS
• XHB21 LOP
• XOA317AAG001
• XOA317AAG
• Xizi Otis XHB21-A/S
• Xizi Otis XOA317AAG001

These references are useful for search coverage and customer inquiry matching. However, they should not be treated as confirmed interchangeable part numbers. For actual replacement, the old panel label, button layout, rear connector, installation size, and mounting position must be checked before ordering.

Used for Landing Call Operation

This product should not be described only as a normal elevator push button panel.

In a Xizi Otis elevator system, the LOP is installed at the landing entrance and is used for floor call operation. When passengers press the landing call button, the signal is sent to the elevator controller so that the elevator can respond to the floor request.

If the LOP has worn buttons, damaged faceplate, poor button response, broken indicator area, loose connector, or unstable call signal, the elevator may fail to receive the landing call correctly. In this case, the complete panel may need to be checked or replaced.

XHB21-A/S and XOA317AAG001 Should Be Checked Together

For this model, the important point is the number confirmation.

Some old panels may show XHB21-A/S on the label or housing. Other supplier records, stock labels, or previous quotations may use XOA317AAG001 as the part reference. These two references should be kept together on the product page because customers may search by either number.

Before quotation, buyers should confirm:

• complete model number on the old LOP
• whether the old label shows XHB21-A/S
• whether XOA317AAG001 appears on the label or quotation record
• button quantity and button direction
• whether the panel has up / down buttons or a single call button
• front panel shape and surface style
• rear connector type
• wiring plug position
• mounting holes and bracket position
• panel size or wall opening size
• installation floor position if several panels are required

For this product, a clear old label photo and rear connector photo are more useful than only writing the model number.

Where This LOP Is Usually Checked

Maintenance teams may inspect or replace this Xizi Otis LOP when the elevator has problems such as:

• landing call button not responding
• button contact failure
• damaged or scratched faceplate
• loose wiring plug behind the panel
• unstable landing call signal
• indicator or button light not working
• water damage or aging on the landing panel
• replacement during building renovation
• several landing panels needing the same appearance

These problems may also come from wiring, button board, controller input, communication circuit, or site installation damage. The LOP should be checked together with the related landing call circuit before confirming the part fault.

Front Appearance Is Not Enough for Replacement

Do not replace Xizi Otis Elevator LOP XHB21-A/S XOA317AAG001 only by front appearance.

Some Xizi Otis landing panels may look similar from the outside, but the rear connector, fixing structure, panel size, internal button board, or wiring direction may be different. If the wrong version is installed, the panel may not fit the wall opening, the connector may not match, or the landing call function may not work correctly.

Before installation, technicians should compare the old and new panels carefully. The connector should match the original wiring plug, and the mounting holes should align with the existing installation position. If the plug direction or pin arrangement is different, the panel should not be forced into use.

For overseas buyers, sending clear photos of the old LOP label, front side, back side, connector area, button layout, and installation position is the safest way to confirm the correct replacement before shipment.

Practical Procurement Notes

This product is often purchased by elevator maintenance companies, spare parts distributors, and repair teams for existing Xizi Otis or Hangzhou Otis elevator projects.

For customers in Saudi Arabia, Jordan, Egypt, Iraq, Brazil, Chile, Spain, and Italy, inquiries for this type of landing operating panel often come from job-site photos rather than complete technical documents. If several pieces are required for one building, it is better to confirm whether all floors use the same LOP version before placing the full order.

When sending an inquiry, the buyer should provide the old label, complete front photo, rear photo, connector close-up, and quantity required. If the part will be shipped together with other elevator spare parts, model confirmation should be completed before packing to reduce the risk of wrong supply.