China KNX Wall Switch manufacturer

Impact Resistant Tempered Glass Light Switch RS485 Protocol 12V DC

Product Details:
Place of Origin: Guangdong, China
Brand Name: Smart Laffey
Model Number: LFmd-swxx-N8V
Payment & Shipping Terms:
Minimum Order Quantity: 50 Pieces
Price: Negotiable
Packaging Details: Carton Box
Delivery Time: 10-15 work days
Supply Ability: 10000 Piece/Pieces per Month

Detail Information

Material: Tempered Glass Color: Black/Champagne/Grey
Function: Controlling Lamp Size: UK Standard 86mm*86mm
Protocol / Voltage: RS485 Application: Connecting Room Control Unit
Power: 12V, DC Conjoined: 2/3/4/5 Conjoined
High Light:

Impact Resistant Tempered Glass Light Switch


Tempered Glass Light Switch IO

Product Description


Tempered Glass RS485 Switch Variety Modular Style And Color Panel 




Product Name Smart Switch of RS485
Brand Smart Laffey
Size 86mm*86mm
Color Black/Champagne/Grey
Protocol RS485
Power 12V, DC
Back Box for Installation UK Square Box
Conjoined 2/3/4/5 conjoined
Function Controlling lamp
Types 1/2/3/4/6-button
Application Connecting room control unit



Product Features


1. Tempered glass is impact resistant;

2. Fire retardant;

3. Easy to clean and not easy to leave traces;

4. High temperature resistance;

5. It can be used for a long time and is not easy to change color and deformation;

6. White status light and orange backlight;




N8V series glass frame combine with multi style module, including G1 module, G2 module, G6 module, G7 module;

Power supply voltage: 12VDC ; Indicator light: common anode (common positive) or common negative (common negative);




Modbus communication: Network smart panel, read or write the register through rs485, realizing distant monitor and output control. MODBUS RTU protocol is adopted. Serial port parameter settings: Baud rate:”9600”, check bit:”null”, data bit: “8”, stop bit: “1”.Two instructions distance: 100ms





(1) Communication format



Device ID

Function code Data address Communication data CRC Check
1Byte 1Byte 2Byte nByte 2Byte


(2) Communication device No.


1----255, factory default address; OXFF is broadcast address

Under broadcast mode, write is permitted, not read. No data back from slave device.


(3) CRC16-1 check calculation methodology


CRC set 16-bit of register to 0xffff, ,and put the near two 8-bit data in to the register, every 8-bit data produce CRC,not including start bit, stop bit and parity check bit. When producing CRC, every 8-bit data operate xor with data in register with result of move 1-bit to the right and fill MSB with “0”,check “LSB”.If LSB is “1”,xor with default data. If LSB is “0”,no xor. Repeating above process until move 8 times, next 8-bit data operate xor with the current value. After end of data operation,the final value is CRC value.



Impact Resistant Tempered Glass Light Switch RS485 Protocol  12V DC 0
Impact Resistant Tempered Glass Light Switch RS485 Protocol  12V DC 2
Impact Resistant Tempered Glass Light Switch RS485 Protocol  12V DC 5

Impact Resistant Tempered Glass Light Switch RS485 Protocol  12V DC 7





(1) Mutual benefit : We are factory also have more than 10 years experience in manufacturing and developing of switches and sockets.

(2) Customize : We have strong R&D team, we will try our best to custom product as your request.

(3) OEM service : (a) Printing your Logo (b) Engraving words or icons

(4) Mix order : We accept mix order, different model and small quantity order.





1. Q:What’s the shipping method?

A: By express way. Such as Fedex, DHL, TNT and so on; by air or by sea. Shipping cost is decided by shipping ways and product’s actual weight and volume, also your detailed address.

2. Q:Can we print our own brand or logo on your products?

A: Yes, it is our pleasure to be one your OEM manufacturer in China to meet your OEM requirements.

3. Q: Why do some goods have difference between website picture and practical items?

A: Because difference of light and browser, also different batches, materials may be little difference, such as lining. Sometimes, the picture is for reference only. These are allowed in actual case. If any question, please tell us before order and ask clearly.

4. Q: Can I order one piece for sample or trial order less than MOQ to test the quality?

A: Yes, We recommend to check the sample before order. We accept trial order less than MOQ.

5. Q: If I order big quantity, what's the good price?

A: Please send the details enquiry to us, such as the Item Number, Quantity for each item, Quality request, Logo, Payment Terms, Transport method, Discharge place etc. We will make the accurate quotation to you as soon as possible.


If you have another question, please feel free to contact us.

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