拨码开关 meaning in English

diswitch

And afford dip switch . not have to setting
提供dip拨码开关，无须设置
Digit toggle switch
四位拨码开关
At the same time , this kind of gprs terminal not only supports " transparent data transmission " , but also has three kinds of interface voltage levels ( ttl / rs232 / rs485 ) that can be changed by setting the switcher
并且该gprs终端不但支持透明的数据传输，而且可通过拨码开关实现ttl rs232 rs485二种接口电平的转换，因此可以） ’ “泛应川到其它、业比川无线数据传输领域。