User manual

BC-D2X Floor Indicator Board

Document no: LF-BCD2X-UM-ENIssue: v1.0Date: May 2026

01General Features

The BC-D2X is a floor indicator board developed for displaying floor information, direction indicators and status notifications in elevator systems. It operates by receiving data from the control board over a CANBUS communication infrastructure.

What it displays

Floor number, movement direction and system status information.

How it communicates

With the control board over the CANBUS line; the supply arrives through the same connector.

02System Overview

Front

Rear

03Technical Specifications

The BC-D2X is a compact indicator module with a CANBUS communication infrastructure. It processes the data received from the connected control system over the CANBUS line and shows the floor number, movement direction and system status on the display.

The board is designed for industrial operating conditions, aiming at low power consumption, stable operation and long service life. Its compact structure and mounting holes allow easy installation in control panels and narrow spaces.

Property	Value
Supply	+24 V DC (`100` terminal)
Communication	CANBUS (`CANH` / `CANL`)
Board dimensions	65 mm × 110 mm

04Connection Points

The connectors on the board provide communication with the control board and read the direction buttons.

Diagram showing the connectors and connection points of the BC-D2X board — Diagram 1 — Connection diagram

X-CB1 and X-CB2 — communication and supply

These input terminals are used for CANBUS communication and board power supply. Both connectors carry the same line, so boards can be daisy-chained.

Label	Description
`CANH` / `CANL`	CANBUS communication lines
`1000`	GND connection
`100`	+24 V DC power supply connection

X-UCL and X-DCL — direction buttons

The input terminals used for the up direction (X-UCL) and down direction (X-DCL) call button connections. Both have the same pin layout.

Label	Description
`BT+`	Button positive connection
`LED−`	Button LED negative connection
`100`	+24 V DC connection

X-PI1 — programmable terminals

The programmable terminal used for external control and special function connections.

Label	Description
`PI1`	Programmable input connection
`PO1`	Programmable output connection
`100`	+24 V DC connection

05Mounting Dimensions

The overall board dimensions are 65 mm × 110 mm. The mounting hole spacing is 55.99 mm horizontally and 56.05 mm vertically.

Technical drawing showing the outer dimensions and mounting holes of the BC-D2X board — Figure 3 — Mounting dimensions

MOUNTINGRequirements

All mounting holes are designed for M3 screws.
Mount the board parallel to the surface and fix it securely.
Use suitable washers and nuts to prevent loosening in vibration-prone environments.
The underside of the board must not touch metal surfaces directly; use plastic spacers.

06Terminals and Labels

Close-up of the connectors and terminal names along the bottom edge of the BC-D2X board — Figure 4 — Terminal labels

Connector	Label	Description
`X-CB1`	`CANH`	CANBUS communication line
	`CANL`	CANBUS communication line
	`1000`	GND
	`100`	+24 V DC
`X-CB2`	`CANH`	CANBUS communication line
	`CANL`	CANBUS communication line
	`1000`	GND
	`100`	+24 V DC
`X-UCL`	`BT+`	Up direction button positive
	`LED−`	Up direction button LED negative
	`100`	+24 V DC
`X-DCL`	`BT+`	Down direction button positive
	`LED−`	Down direction button LED negative
	`100`	+24 V DC
`X-PI1`	`PI1`	Programmable input
	`PO1`	Programmable output
	`100`	+24 V DC