Boca Pro16 Series - Dialing; Selecting

54
BOCA PRO16 Reference Guide
Synchronous Mode 1 Originate and Answer Mode
Selecting Synchronous Mode 1
Synchronous mode 1 is selected with the &M1 command.
• Type: AT&M1 <E>
Your modem will enter synchronous mode whenever it successfully
connects to a remote modem.
You should also:
• Type: AT&D2 <E>
This allows hang up via your computer’s DTR signal.
FYour computer will not be able to hang up the modem if the DTR
Option Switch is in the DOWN position (DTR will always be asserted).
DTR must be lowered to make the modem hang up.
To return to asynchronous operation:
• Type: AT&M0 <E>
Dialing
Your computer must be in asynchronous mode before dialing com-
mences. To begin dialing use the D command. Response codes sent to
the computer depend upon the settings of the X, V and Q commands. As
soon as a connection can be established, your modem will assert CTS and
enter synchronous on-line state. If connection cannot be made, your
modem will hang up and return to asynchronous local command state.
Asynchronous
L
ocal Command State
A
TD issued
A
TO issued
❏
❏
Synchronous
On-line State
Hang Up
C
onnection
E
stablished
D
TR Lowered (&D0,
&
D2) or Remote
C
arrier Lost
C
onnection
F
ailed
Asynchronous
L
ocal Command State
I
ncoming Call
A
TA issued
❏
❏
Synchronous
On-line State
Hang Up
C
onnection
E
stablished
C
onnection
F
ailed
D
TR Lowered (&D0,
&
D2) or Remote
C
arrier Lost
Synchronous Modes
Synchronous
Modes
pro16ref.pm6 6/14/96, 2:37 PM54