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USER'S GUIDE
STOP/START
A
ready stopped/started. If the
"toggles" the output, turning it off when it is on and on when it is off.
You can disable XON/XOFF flow control in one direction only by setting the appropriate
flow control characters to 0 (zero). Your PK-232 automatically uses CTS flow control to
stop input from the computer.
XON/XOFF flow control is normally disabled in Transparent Mode; all characters are
treated as data. If DTR/RTS flow control is not available, set TXFLOW ON and XFLOW
ON to activate the XON and XOFF characters (the command from your PK-232 to the
terminal).
TRFLOW ON
Set
PK-232 from the terminal) in Transparent Mode. Note that this mode is no longer truly
"transparent" when the flow-control feature is enabled.
5.3.2.2.
Hardware Flow Control
RS-232 RTS and CTS lines are normally used for flow control control signals in Transpar-
ent Mode. Hardware flow control is usually less dependent on the way a given commu-
nication terminal program is written.
XFLOW OFF
The
mand Mode. Your computer may receive as many as two characters after it signals your
PK-232 to stop sending; some characters may be "en route" already through serial I/O
chips. Refer to AEA's PK-232 Technical Manual for hardware flow control interface re-
quirements.
5.4.
Data Transfer Modes
A data transfer mode can be entered several ways from Command Mode.
o
Type
CONVERS
o
Type
TRANS
If you're in Command Mode when another station connects to your station, your PK-232 au-
tomatically switches to a data transfer mode. Use the CONMODE command to specify the
data transfer mode to be used at automatic entry.
o
CONMODE TRANS automatically selects Transparent Mode.
o
CONMODE CONVERS returns to the default choice of Converse Mode.
Timing of automatic entry into data transfer mode depends upon which station in the link
initiated the connection.
If your PK-232 receives and accepts a connect request, your system always enters the data
transfer mode at the moment your PK-232 sends the connect acknowledgement (ACK) and
displays the
*** CONNECT to
data transfer mode at the moment of connection unless
PK232UG Rev. B 9/86
character sent to your PK-232 will be ignored when the PK-232 is al-
STOP
and
START
to activate the
command activates hardware flow control in Converse Mode and Com-
(or just K) to enter Converse Mode.
(or just T) to enter Transparent Mode.
{call sign}
START
characters are identical, that character
STOP
and
characters (the commands to your
message. Your PK-232 always switches to the
NOMODE
5-4
ADVANCED PACKET OPERATION
ON
is set
.
95
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