Ericsson ZAT 19.2 Operation Manual page 232

10.3 Synchronous Mode 2 - Dial stored number
hronous M is set by
509 g a t " 1 The command must be entered from an
asynchronous DTE. The modem remains in
" 4 asynchronous command state until a connection
is established.
10.3.1 Storing the telephone number
The telephone number must be stored or changed using an
asynchronous DTE as described under the &Z command or by
use of the display menu (refer to menu description C031).
Remember that the modem will use the number stored in
position 0.
10.3.2 Calling.
= Set DTE to synchronous operation cr switch the V.24 interface
to a synchronous DTE.
The modem will automatically dial the stored number at position
0 (See &Z command) when it senses DTR OFF to ON transition.
If the modem fails to connect, it will return to asynchronous
command state. When the connection is established, the
modem changes to synchronous mode and transmission may
start when CTS (106) and DCD (109) is ON.
10.3.3 Disconnecting
The modem disconnects if carrier is lost for a longer period than
set by register $10. The modem may also be disconnected by
turning DTR off or by the display menu.
10.3.4 Synchronous Autoanswer.
=Activate the MAN/AUTO switch or set register SO to a non-
zero value.
=Set DTE to synchronous operation or switch V.24 interface to
a synchronous DTE.
=Set DTR OFF.
Wait for RING indication (V.25 circuit RI/125).
=Set DTR ON.
Wait untit CTS (106) and DCD (109) is on.
Transmission may start.
Answer mode will be started immediately on a DTR OFF to ON
transition, after RING detection.
A call can be rejected by keeping DTR off for at least 8 seconds
after the last RING signal.
10-4 LZTR104006 R1.00
Zat 14.4/14.4-7 and 19.2/19.2-7