Model No: GFA21240D1

Elevator Main Board LCB-II GFA21240D1 for OTIS

The Otis GFA21240D1 elevator main board (LCB-II / LCB-2 controller PCB) is a central operational and microprocessor dispatching board engineered for Otis lift control systems. Please confirm your existing board software version, EPROM chip revision, and terminal connector layout before ordering.

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Specifications

Property	Value
Brand	OTIS
Model / Board Reference	LCB-II (LCB-2)
OEM Part Number	GFA21240D1
Related Reference	NDA20401AAA00
Common Name	LCB-II Board / Main Control Board / Controller Motherboard / CPU Board
Product Type	Elevator Cabinet Microprocessor Main Control Circuit Board
System Compatibility	Otis Passenger Elevator Control Systems (MCS-220 / MCS Series)
Similar Models	GFA21240D2, etc.
Global Shipping	Express Delivery (DHL/FedEx/UPS/TNT)

Why Source from POTENSI

Verified Logic & Signal Processing: POTENSI supplies tested GFA21240D1 LCB-II boards verified for stable processor clock cycles, reliable safety circuit monitoring, and clean serial communication with landing and car stations.
Component-Level Bench Inspection: Every mainboard undergoes strict pre-dispatch quality verification, inspecting microcontrollers, bus transceivers, optocoupler isolation channels, and multi-pin header integrity.
Specialized Elevator Spares Supply: We assist maintenance contractors, facility engineering teams, and lift modernization specialists worldwide with dependable replacement boards and prompt sourcing support.

Logistics and After-Sales

Static-Shielded Protective Packaging: Each circuit board is sealed inside an anti-static ESD shielding bag with shock-absorbing protective cushioning inside rigid export cartons to prevent electrostatic hazards and transit impact damage.
Fast Global Express Dispatch: Prompt door-to-door delivery is arranged via premier international express couriers (DHL, FedEx, UPS, TNT), backed by online tracking references.
Technical Guidance: If your maintenance engineering team requires assistance verifying jumper configurations, diagnostic status LEDs, or parameter settings via service tool, POTENSI provides prompt technical follow-up for your elevator main board GFA21240D1 for OTIS.