TITLE
    LaserWriter IINT: Switch Configurations
Article ID:
Author:
Created:
Modified: 		1992

1/15/88
9/15/93
TOPIC


    The LaserWriter IINT has a two-position DIP switch located on the controller
    panel. This switch is used for controlling the mode of operation, serial port
    configuration, and communication parameters.

DISCUSSION


    Switch 1 Switch 2 Meaning

    Up Up AppleTalk (Serial Port Disabled)

    Down Down RS-232 and RS-422 *
    Serial Ports 1200 baud

    Up Down RS-232 and RS-422 *
    Serial Ports 9600 baud

    Down Up Special Diablo 630 emulation

    * BOTH serial ports are enabled. Serial communication and AppleTalk
    communication are NOT compatible and will never occur at the same time.

    These serial port configurations are stored in the EEROM as persistent
    parameters, and can be overridden by downloading a PostScript program. The
    EEROM configuration is updated to match the switch configurations if:


    - the switches are changed between a power-off/on cycle
    or
    - the switch settings do not match the values in EEROM at start-up
    or
    - while the printer is on you toggle a switch, wait 30 seconds, and toggle it
    back.

    Other asynchronous configurations of the SCC ports are available. Refer to the
    current Apple LaserWriter reference manual or the current PostScript Language
    reference manual for information on setting the parameters of the serial ports.


    Article Change History
    15 September 1993 - Changed the LaserWriter model designators to upper case.
EXTENDED Information section - Apple Internal Use - Service Providers and Support Professional

APPLE EYES ONLY Information section - Apple Need-To-Know Confidential

Article Change History:



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