Threestars Computer Communication Co., Ltd.
Main products:Payment Kiosk
Products
Contact Us
  • Contact Person : Mr. Xu Mark
  • Company Name : Threestars Computer Communication Co., Ltd.
  • Tel : 86-0755-26419785,13823140355
  • Fax : 86-0755-26643290
  • Address : Zhejiang,Wengyang,East Street, Wengyang Town, Yueqing City, Zhejiang Province, China.
  • Country/Region : China
  • Zip : 518052

DTMF telephone-style backlight buttons keypad

DTMF telephone-style backlight buttons keypad
Product Detailed
1.Automatic telephone technical conditions 2.Circuit board used double-sided epoxy with gold plate 3.high-quality zinc alloy

Introduction

The key group adopted high-quality zinc alloy material, the surface can be a very good anti-corrosion, anti-external damage through copper, nickel treatment.

Circuit board used double-sided epoxy with gold plate, to ensure its superior transmission capacity. Product is suitable for outdoor public pay phone card.

Standard

GB/15279-94    Automatic telephone technical conditions

YDN109-1998   IC card telephone technical requirements and test methods

GB9035       the technical requirements of DTMF telephone-style keypad

Operating environment

Environment temperature  below Negative 25 till 55°C 

Relative Humidity    10% till 95%

Atmospheric pressure  96 till 108KPa

Technical Data

Buttons conduction resistance   less than 100

Buttons conduction pressure    0.5 till 1.8N

Insulation resistance          DC 100V more than 50M     

Buttons conduction trip       2.5mm 0.5

Dielectric Strength          AC 500V/1min 

Mechanical life            1 million times

DTMF telephone-style backlight buttons keypad



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