Printer And Keyboard Printer Support - IBM 3708 Description

• It supports the following 3270 commands:
Erase All Unprotected
Erase/Write
Erase/Write Alternate
Read Buffer
Read Modified
Read Modified All
Write.
• It supports the following buffer formatting and control orders:
Start Field
Set Buffer Address
Inset Cursor
Program Tab
Repeat to Address
Erase Unprotected to Address.
• It
notifies the user when it detects a framing or parity error by updating the
status line. To continue, the user must reset the display using the 3270 reset
function. (This function can be suppressed by configuring nonstandard operating
bit 5 to
1.
Refer to Chapter 7, "Nonstandard Operations.")
• It allows the user to display response-time statistics and error information, such
as the alert log, at the control terminal. In addition, the response-time statistics
and alerts can be displayed at the host using NetView or Network Logical Data
Manager (NLDM) and the Network Problem Determination Application
(NPDA). Full support for the 3708 alerts is available only through NetView.
Printer and Keyboard Printer Support
In protocol conversion mode, an ASCII printer or keyboard printer looks like an
IBM 3287 Printer, Modell or 2, to the SNA host. The ASCII printer or keyboard
printer can be configured to operate in three ways:
,System mode. The host sends print data to the printer, which is either an LU
type I or an LU type 3. The output format for an LU type I printer is
controlled by SNA character string (SCS) characters. For an LU type 3 printer,
the output can be formatted or unformatted. Unformatted output is controlled
by 3270 data stream compatibility (DSC) print orders.
Local mode. A copy of the screen of a display that is operating in protocol
conversion mode is printed at the printer. The host can start a local copy by
sending a command, or the user of the display can select it with a print key
sequence. When a printer port is configured for local mode, it cannot be used
for LU type I or LU type 3 print operations.
Shared mode. The printer is available for both system mode and local mode
operation. A local copy can be performed whenever the printer is not being
used for an LU type I or LU type 3 print operation.
Keyboard printers operating in protocol conversion mode are supported as output
devices and must be defined as printers.
Up to 256 characters (8-bit data with no parity) can be used with an output device
operating in LU type I SCS transparency mode.
Chapter 1. Introduction
1-9