User`s manual

161
CHAPTER 3 COMMUNICATIONS BY THE MODEM FUNCTION
3
3.4 Start-up of the Modem Function
3.4.8 Line disconnection
This section explains the line disconnection upon communication completion when communicating data with the
external device using the modem functions.
In case of notification to pager receivers, since the line will be disconnected at the end of the notification processing,
the disconnection processing such as I/O signal disconnection request (Y12) is unnecessary.
(1) I/O signal used
Uses modem disconnection request signal (Y12) and modem disconnection completion signal (X14).
(ON)
(OFF)
(OFF)
X10
X12
Y12
X14
X10
X12
Y12
X14
*
Initialization
completion
Connection in
progress
Modem
disconnection request
Modem disconnection
completion
RS-232 CD terminal
Host station DisconnectionCommunication
External station
(Q series C24)
Initialization
completion
Connection in
progress
Modem
disconnection request
Modem disconnection
completion
RS-232 CD terminal
This is the procedure to take in order to turn off the initialization complete signal (X10).
In the case of Q series C24, when the line is disconnected from the external device,
the initialization complete signal (X10) at the local station is not turned OFF.