User's Manual

6. Carefully insert the modem into the selected slot. Apply even pressure

until the modem is firmly seated.

7. Secure the bracket with the screw saved earlier. Store the slot cover

for future use.

8. Replace the computer cover and plug in your computer. Reconnect all

cables.

9. Connect the telephone cable into the modem's LINE connector.

Attach the other end into the telephone wall jack (see Figure 2-2).

10. Optionally connect: (1) your telephone to the modem's PHONE

connector. Lift the handset and listen for a dial tone to check for a

working connection. (2) a speaker to the modem's SPK connector,

and (3) a microphone to the modem's MIC connector.

This completes the internal modem installation.

2.2.1COM (COMmunication) Port and Interrupt Settings

(Internal Modem Only)

The modem requires a COM port to communicate with the computer

system. Most computers are equipped with one or more COM ports on the

rear panel. Your modem does not connect to these COM ports, but

connects to the internal expansion bus on your computer. The internal

modem will therefore be assigned its own COM port number. The COM

port assignment is selected via jumpers located on your modem (*see

Figure 2-3 to Figure 2-5 for jumper location). Note that the internal modem

can not be assigned a COM port number that is already in use by another

device in your computer. Since most PCs contain 2 built-in COM ports, we

suggest that you assign your internal modem as either COM4 or COM 3.

Your modem is factory configured to use COM4.

An IRQ (interrupt request) is a signal generated by an I/O device

(e.g., modem) that notifies the computer of incoming data. Your modem is

capable of generating IRQs 3, 4, and 5 (selected via jumpers on non-Plug

and Play models). I/O devices in your computer can share an IRQ

with another device as long as the two devices are not functioning

simultaneously. Example: a mouse may be connected to COM1 using

IRQ4 while COM3 is a modem using the same IRQ.

The following diagrams and charts are to be used when the COM port

or IRQ settings need to be changed from the factory default setting.