Tektronix DAS 9221 Option 04, Руководство пользователя

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Reference
DAS System User Manual
3–47
H
Host Port Flow Control field. This field defines the type of flow control the
system uses when transferring data to and from a host computer; flow
control applies to data sent in either direction. For XON/XOFF selection, the
host sends XOFF (ASCII DC3) to stop the system from sending more data
and XON (ASCII DC1) to resume transmission. Similarly, the system sends
XOFF/ON to stop and start the host. For DTR/CTS, the host sets the DTR
control line low to stop the system from sending data and sets the same line
high to resume. Similarly, the system sets the CTS control lead low to stop
the host from sending data, and to high to resume transmission.
H
Protocol field. This field specifies either the DAS 9200 PCL or Kermit file
transfer protocols for the Host port. For more information on the DAS 9200
PCL protocol, refer to the DAS 9200 Programmatic Command Language User
Manual. The Kermit file transfer protocol is discussed in detail later in this
section.
H
Mode field. This field selects the number of significant data bits-per-charac-
ter in a character frame; selections are 7-bit ASCII and 8-bit binary. For
either selection, a character frame is composed of 1 start bit, 8 data bits, and
1 stop bit (2 stop bits at 110 baud). In 7-bit mode, the system ignores the
most significant bit of the data from the host; all flow control characters and
an interrupt character are available. The system cannot send or receive binary
block information; hex block format must be used. In 8-bit mode, all eight
data bits are significant. XON/XOFF flow control is not available and there
is no interrupt character. In this mode, the system can send and receive data
using all types of transmission formats, including binary.
H
Input EOL field. This field selects the character the system recognizes as the
end of a message from the host; selections are CR (carriage return) and NL
(LF) (new line) (line feed). If your host sends CRLF (both characters) at the
end of a message, set this field to NL (LF).
H
Output EOL field. This field selects the characters the system sends at the
end of a message; selections are CR, NL (LF), and CRLF.
H
Interrupt field. This field selects the character sent to the system to cause a
device clear (clear all input/output buffers). For more information, refer to
the DAS 9200 Programmatic Command Language User Manual.
Function key F3: PREVIOUS VALUES returns all fields to the values prior to
entering this menu or to the values set the last time you selected this function key.
Function key F4: DEFAULT VALUES restores all fields to their default values.
The LAN overlay contains fields for information that is assigned by your system
administrator. This information is needed for your host or terminal to communi-
cate with the system, and is required for initial start up. It also contains status
fields that provide information on the status of the 92LANSE subsystem.
Figure 3–23 shows an example of a typical LAN overlay.
LAN Overlay