155
Factory-Installed Modem Card Layout
GVC --Non Voice
GVC-Voice
NOTE: 
Care should be taken while connecting the voice-in/speaker-out 
connector. The longer exposed end (about 15mm) of the cable should 
be connected to the modem card. The other end should be connected to 
the system board.
GVC Factory-Installed Modem Card Connector Functions
Item Function Connect to...
1 Telephone line-in Telephone line
2 Telephone line-out 
Some modem adapters may come 
without this jack.
Telephone set
3 Voice-in/speaker-out connector System board 
Machine Type 2170: CN21
Machine Type 2171 and 2172: 
CN12