Confidential
MANUAL
31(51)
Document number
Revision
7/198 17-LXE 108 566 Uen
A
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23 VPPFLASH/DCD
DCD:
Logic input from phone module. This signal is
set default high. It goes low indicating that a data or fax
call is established, (CONNECT) received from remote
modem. The signal goes high when data connection is
disconnected.
Sent from the phone module (DCE) to the application
(DTE) to indicate that it has received a basic carrier
signal from a (remote) DCE.
VPPFLASH:
The application shall not apply a voltage
to this pin unless they intend to use it as VPPFLASH in
which case it becomes a power output.
I/O
