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OS/2 Shareware BBS: 3 Comm
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OS/2 Help File
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1991-11-27
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4KB
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99 lines
ΓòÉΓòÉΓòÉ 1. Help for Communications Parameters ΓòÉΓòÉΓòÉ
Communications Parameters help synchronize the data flow between the host
computer system and your PC. These parameters should be set to match the
requirements of the host.
ΓòÉΓòÉΓòÉ 2. Baud Rate ΓòÉΓòÉΓòÉ
This is the transmission speed of the communications link between your PC and
the host computer. The standard choices are 110, 150, 300, 600, 1200, 2400,
4800, and 9600 bits per second. Additional choices, such as 19200, 38400, and
115200 may be available depending on the hardware of the personal computer.
ΓòÉΓòÉΓòÉ 3. Data Bits, Stop Bits, Parity ΓòÉΓòÉΓòÉ
Note: These three parameters are grouped in the only possible valid
combinations. You merely need to select a set.
Data Bits
Selects the number of binary information data bits contained in each
character. The value of this option can be either a 7 or 8. This almost
always will be 7 if parity is used and 8 if no parity is used.
Stop Bits
Selects the number of bits which should be appended to each character to
detect correct character framing. The value of this option can be either
a 1 or 2. This setting is dependent on the requirements of the host
computer system but usually is 1.
Parity
Parity is used as a method of error detection and is determined by the
host computer. The choices for this option are None, Odd, Even, Mark,
and Space.
ΓòÉΓòÉΓòÉ 4. Help for Flow Control ΓòÉΓòÉΓòÉ
Flow Control helps to synchronize the data flow between the host computer
system and your PC. These parameters should be set to match the requirements
of the host.
ΓòÉΓòÉΓòÉ 5. Transmit Pacing ΓòÉΓòÉΓòÉ
This option controls whether or not Softerm responds to pacing while
transmitting data to the host computer. The choices for this option are
XON/XOFF, XON/XOFF Pairs and None (the default).
XON/XOFF is selected if Softerm is to perform resume and suspend operations in
response to XON (start) and XOFF (stop) characters received from the host
computer. Since most terminals do not have the capability to respond to XON
and XOFF characters, this option should be set to None for most terminal
communications to host computers.
Caution: If the XON and XOFF character codes used by the host correspond to
terminal functions other than start/stop in the terminal emulation,
unpredictable results may occur. This option should be used only if it is a
requirement of the host computer system.
The selection of XON/XOFF Pairs is similar to XON/XOFF, except that XON and
XOFF characters are treated as pairs. For example, if a second XON character
is received before an XOFF, it is treated as data, rather than as a flow
control character. In like manner, if a second XOFF is received before an XON,
it is treated as data. (Note: This option is designed primarily for Hewlett
Packard environments.)
If None is selected, no flow control is used. Transmissions to the host could
overflow its receive buffer and data could become lost and/or garbled.
ΓòÉΓòÉΓòÉ 6. Receive Pacing ΓòÉΓòÉΓòÉ
This option defines the type of pacing control Softerm will use when receiving
characters from the host computer system. The choices are None and XON/XOFF
(the default). The specific choice depends on the type of connection and the
host system software. If you are unsure of the host's requirements, check with
the System Administrator.
The selection of XON/XOFF specifies the use of start (XON) and stop (XOFF)
characters for pacing control.
If None is selected, no flow control is used. Transmissions from the host
could overflow this program's receive buffer and data could become lost or
garbled.
ΓòÉΓòÉΓòÉ 7. Help for System Settings ΓòÉΓòÉΓòÉ
The Session profile is trying to access a communications port that is not
available. (The port may be in use or it may not be correctly installed and
configured.)
So long as you select OK, Softerm will cycle through all the possible COM ports
until an unused port is found or until you select Cancel.