Description: LaserWriter: Connecting to Apple II or Apple III
Header: LaserWriter: Connecting to Apple II or Apple III


 This article last reviewed: 17 February 1988

 A LaserWriter, mode switch set to Special (Diablo 630 emulation), can be
 connected to an Apple III or to an Apple II with Super Serial Card (SSC).

 from Apple III or SSC            to LaserWriter
 -----------------------------------------------
 DB-25 connector                  DB-25 connector

 signal    -    pin     wiring    pin  -  signal

 Tx              2       <->       3      Rx (Receive Data)
 Rx              3       <->       2      Tx (Transmit Data)
 Signal Ground   7       <->       7      Signal Ground


 Apple II DIP Switch Settings (with SSC in DTE)
 ----------------------------------------------
 Switch block 1        Switch block 2
  1 off                 1 on
  2 off                 2 off
  3 off                 3 off
  4 on                  4 off
  5 off                 5 off
  6 on                  6 off
  7 on                  7 off

 The above setting result in:
  9600 baud, printer mode
  normal CTS
  8 data bits, 1 stop bit
  no delay after CR
  132 characters/line
  no line feed after CR
  interrupts off
  normal CTS

 Apple III Driver
 ----------------
 Use the standard .PRINTER driver, which uses the built-in serial (RS-232C)
 port. The five parameters to set in the driver configuration block are:
  byte 1 (data rate) 0E = 9600 baud
  byte 2 (data format) 00 = 8 bit, no parity
  byte 3 (CR delay) 00 = no delay
  byte 4 (LF delay) 00 = no delay
  byte 5 (FF delay) 00 = no delay



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