7. APPENDIX

7.2 Modem Riser

7.2.1 56K Software Modem

The Modem Riser (MR) is a high-speed PC communication peripheral which works with AMC’97/MC’97 compliant codecs. With this software modem, you can connect your computer to a remote location, receiving data at up to 56 Kbps in V.90 or K56flex modes.

7.2.2 Primary/Seconday MR

There are two types of modem risers: primary MR and secondary MR. In appearance, the primary MR has a crystal onboard but the secondary does not. If your motherboard has an audio codec and no PCI audio chipset onboard, you may use the secondary MR; otherwise, you should use the primary MR.

Layout of Primary MR

Top:

LINECrystal

Bottom:

PHONE

Codec

7. APPENDIX

Modem Riser

7.2.3Hardware Installation Procedure

1.Power OFF your computer.2.Open the computer chassis and re-move the metal plate on the AMR expansion slot.

3. Carefully align the MR card’s connector to the AMR slot and press firmly.

4. Secure the MR card onto the chassis with the screw removed in step 2.

5. Connect the MR card’s LINE connector to a telephone wall jack. Connect the PHONE connector to a telephone (optional).

6. Replace the computer chassis.

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