ASUS A7N266 User’s Manual 99
7. APPENDIX
7. APPENDIX
Modem Riser
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 com-
puter 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 pri-
mary MR has a crystal onboard but the second-
ary 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.
7.2.3 Hardware Installation Procedure
1. Power OFF your computer.
2. Open the computer chassis and re-
move the metal plate on the AMR ex-
pansion slot.
3. Carefully align the MR card’s connec-
tor 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 connec-
tor to a telephone wall jack. Connect
the PHONE connector to a telephone
(optional).
6. Replace the computer chassis.
Top:
PHONE
Bottom:
LINE
Codec
Crystal
Layout of Primary
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