Page 5: Hardware Installation III. Page 6: Speaker produces the sound to show the connection to the ISP or host device. Page 7: Setting Your Modem take care of the batteries charging. Infrared modem shop for sale in Taiwan - 3J Techn Co., Ltd. Also, the main power source will be from the travel charger. In order to save power, the modem will: Get into sleeping mode when no data is transmitting over the phone line for over 4 seconds,[…]