Factory-Installed Modem Card Layout; Factory-Installed Modem Card Connector Functions - IBM PC 300 Maintenance Service Manual

Factory-Installed Modem Card Layout

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Factory-Installed Modem Card Layout

Factory-Installed Modem Card Connector Functions

Item Function
1 Telephone line -out
Some modem adapters may come without
this jack.
2 Telephone line-in
NOTE: Care should be taken while connecting the voice-in/speaker-out connector. The longer exposed end (approx. 15mm)
of the cable should be connected to the modem card. The other end should be connected to the system board.
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Connect to...
Telephone set
Telephone line