Public telephone keypad with volume control button B517
Public telephone keypad with volume control button B517
Introducing B517, a Public Telephone Keypad with a volume control button. We are a leading factory, manufacturing high-quality telecommunications products.
It is a keypad which designed for prison telephone with a volume control button and matched telephone control board. The surface treatment could be made with chrome plating and also could be made with shot blasting for industrial area use. With the location near to Ningbo Port and Shanghai PuTong airport, the shipment method by sea, by air or by express, or by train are available. Our shipping agent can help arrange shipping with good cost, but the shipping time and any problem during shipping couldn’t be guaranteed 100%.It is mainly used for prison telephones or any other machines which needs volume control buttons.
Item
Technical data
Input Voltage
3.3V/5V
Waterproof Grade
IP65
Actuation Force
250g/2.45N(Pressure point)
Rubber Life
More than 2 million time per key
Key Travel Distance
0.45mm
Working Temperature
-25℃~+65℃
Storage Temperature
-40℃~+85℃
Relative Humidity
30%-95%
Atmospheric Pressure
60kpa-106kpa
85% spare parts are produced by our own factory and with matched test machines, we could confirm the function and standard directly.Any appointed connector could be made as customer's request. Let us know the exact item No. in advance.1.The conductive rubber for this keypad with waterproof function and matched with keypad frame drain holes, the waterproof grade of this keypad IP65. 2.The conductive rubber is made with carbon granules with less than 150 ohms contact resistance. 3.The working life for this keypad is more than 1 million times. 4.It is made with alternative interface.
85% spare parts are produced by our own factory and with matched test machines, we could confirm the function and standard directly.
Any appointed connector could be made as customer's request. Let us know the exact item No. in advance.
1.The conductive rubber for this keypad with waterproof function and matched with keypad frame drain holes, the waterproof grade of this keypad IP65. 2.The conductive rubber is made with carbon granules with less than 150 ohms contact resistance. 3.The working life for this keypad is more than 1 million times. 4.It is made with alternative interface.
