What Are the NICE3000 Car Top Board Models?
In modern elevator control systems, the NICE3000 series is one of the most widely used intelligent control platforms, known for its stable performance, precise communication, and easy maintenance.
Among its core components, the Elevator Car Top Board (CTB) plays a vital role—it connects the main control board with the door operator, limit switches, and inspection system, serving as a key bridge for safe and smooth elevator operation.
So, what are the common NICE3000 Car Top Board models, and how do they differ?
Here’s a detailed overview from A-FLY Elevator & Escalator Parts Supplier.
1. What Is the NICE3000 Car Top Board?
The Car Top Board (CTB) is installed on top of the elevator car and mainly functions to:
Control the elevator door opening and closing operations;
Receive signals from door locks, limit switches, and light curtains;
Connect the elevator main control board (MCB) with the door operator system;
Enable inspection, maintenance, and emergency operations on the car top.
It essentially acts as the “frontline control center” of the elevator, directly affecting door operation, maintenance safety, and overall reliability.
2. Common NICE3000 Car Top Board Models
Depending on communication type, installation design, and control requirements, the NICE3000 system commonly includes the following models:
MCTC-CTB-A (Standard Type)
The most widely used model for NICE3000 systems.
Supports door operator control, limit detection, door lock feedback, and inspection mode.
Features: Strong interface compatibility and stable performance.
MCTC-CTB-B (Enhanced Type)
An upgraded version with more I/O interfaces for high-speed elevators or multi-door systems.
Features: Faster communication rate, stronger anti-interference capability.
MCTC-CTB-C (Communication Type)
Designed for CAN communication systems.
Works with the main control board and door drive module to support centralized signal transmission and fault diagnosis.
MCTC-CTB-D (Improved / Compatible Type)
Mainly used for third-party replacement or modernization projects.
Compatible with older NICE3000 systems, ideal for maintenance and retrofit applications.
3. Main Functions of the NICE3000 Car Top Board
Door Operator Control: Works with the door board (DOB) to automate door movements.
Safety Signal Transmission: Monitors door lock, limit switch, light curtain, and emergency stop inputs.
Inspection Operation: Supports manual and inching control for maintenance personnel.
Communication Relay: Coordinates data between the car, main controller, and door operator to ensure stable communication.
A-FLY’s NICE3000 Car Top Boards undergo strict testing to ensure multi-brand compatibility and superior anti-interference performance.
4. Application & Maintenance Recommendations
Since the Car Top Board operates in an environment exposed to vibration, humidity, and temperature changes, using low-quality boards or loose wiring can lead to communication failures or door malfunctions.
Maintenance Tips:
Check wiring terminals regularly for looseness.
Keep the car top area clean and dry.
Always use original or high-quality replacement parts to avoid signal compatibility issues.
In case of communication failure, first inspect the signal indicators and input voltage on the CTB.
A-FLY supplies the full range of NICE3000 control boards, including:
Main Control Board (MCTC-MCB)
Car Top Board (MCTC-CTB)
Door Operator Board (MCTC-DOB)
Display Board (MCTC-HCB)
All products are high-quality compatible units, ensuring accurate connections and long-term stable performance.
5. Choose A-FLY — For Stability and Professionalism
As a professional elevator and escalator parts supplier, A-FLY provides complete NICE3000 control system solutions for global customers.
We deliver:
Certified, high-precision components
OEM/ODM service options
Reliable global logistics and technical support
All A-FLY boards undergo strict quality inspection to ensure maximum compatibility and longevity.
Choose A-FLY — for safer, more efficient, and more reliable elevator control.
