Modem installation process can be divided into hardware installation and software installation two steps: hardware installation and software installation. Modem installation 1. Installation of external Modem: Step 1: Connect the telephone line. Plug the RJ11 plug of the telephone line into the Line interface of the Modem, and then connect the Phone interface of the Modem to the telephone with a telephone line. Step 2: Turn off the computer power, connect one end of the cable (25-pin male end) of the Modem to the Modem, and connect the other end (9-pin or 25-pin plug) to the COM port on the main unit. Step 3: Connect the power transformer to the POWER or AC interface of the Modem. After the power is turned on, the MR indicator of the Modem should be on. Modem ATM transmission mode If the MR lamp does not illuminate or blinks continuously, it means that it is not installed correctly or the Modem itself is faulty. For a modem with voice function, you should also connect the SPK interface of the Modem to the Line In interface on the sound card. Of course, you can also directly connect to the output device such as the headset. In addition, the modem's MIC interface is used to connect the electret microphone, but it is best to connect the microphone to the sound card.
2. Installation of built-in Modem: Step 1: Set the relevant jumpers according to the instructions of the manual. Since COM1 shares a break with COM3, COM2, and COM4, ​​it can usually be set to COM3/IRQ4 or COM4/IRQ3. Step 2: Turn off the computer and open the chassis. Insert the Modem card into any of the empty expansion slots on the motherboard. Step 3: Connect the phone line. Plug the RJ11 plug of the telephone line into the Line interface on the Modem card, and then connect the Phone interface on the Modem card to the telephone with a telephone line. At this point, pick up the phone and you should be able to make calls normally.
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