Visara LINCS Features - Manual (Page 76)

66
LINCS Features
707021-001
Configuration and Management
Configuration - The following Configuration utilities define ASCII devices. The “Direct Device
Menu” in Configuration may be used to guide you through these utilities.
• The Product Definition panel defines the number of ASCII ports present.
• The ASCII Port Options panel designates ASCII ports as being Display or Printer device
ports.
• Refer to the Configuration and Management section under “CUT Device Support” for
configuration utilities common to all LINCS devices.
Management - The Device Menu in Central Control mode helps manage your LINCS devices.
ASCII Displays
Asynchronous ASCII displays can be attached to a LINCS node using ASCII Device Adapters,
enabling access to any type of host connected to LINCS. All features available to CUT-type
devices are available to ASCII displays. LINCS provides protocol conversion or ASCII
passthrough for ASCII display stations.
LINCS provides security for ASCII displays, by limiting access, and providing modem dial-
back. You can also define new ASCII display types, if you are using one that is not predefined
to LINCS.
Protocol Conversion
3270 Emulation: Protocol Conversion enables an ASCII display station or an ASCII printer
to access a 3270 host. 3270 emulation occurs when an ASCII display station or printer accesses
a 3270 host, and the ASCII Device Support software gives the device a 3270 personality.
LINCS’ ASCII feature supports the ASCII display stations listed in the “Supported ASCII
Devices” section below.
ASCII Emulation: Protocol Conversion also enables a coax display to access an ASCII host
port. ASCII emulation occurs when a coax display accesses an ASCII host port, and the ASCII
Host Support software gives the display an ASCII personality. Supported ASCII terminal
emulation functions can be emulated by a coax display. The ASCII character set supported is
a subset of ANSI X3.64-1977.
ASCII Passthrough
In ASCII Passthrough mode, LINCS transmits data between an ASCII display station and an
ASCII host without modification. When the display station is operating in Passthrough mode,
it acts like an ASCII device accessing an ASCII host application. LINCS acts as a conduit for
the data, and does not perform any translation on the data.
Because no data translation is done, LINCS keeps no buffers. That means the Passthrough
sessions’ screen image is not saved when you jump to another session and then back to the
Passthrough session. However, some ASCII hosts support a Refresh key that can restore the
screen when LINCS cannot. Consult the ASCII host’s operator’s manual to determine if your
ASCII host supports this feature.
ASCII Passthrough with Emulation enables an ASCII display not normally supported by an
ASCII host to communicate with that host by providing the display with a supported ASCII
terminal emulation personality. When using emulation on an ASCII display, LINCS keeps