Re: Apple Super Serial?

[dalloff@freenet.columbus.oh.us (Dave Althoff)]

DIP Switch Settings
Apple Super Serial Card

Note:  This information is shamelessly copied from the Apple ][ Super 
Serial Card Installation and Operating Manual (Copr. Apple Computer, 
Inc, 1981), and as such is probably subject to Apple's copyright.

Note:  The Super Serial Card can operate in two different 
modes..."communications" mode or "printer" mode...and the function of 
a few of the switches is mode-dependent.

A.  Switch settings for either mode:
BAUD RATE:  SW1-   1    2    3    4 
undefined         ON   ON   ON   ON
    50            ON   ON   ON   OFF
    75            ON   ON   OFF  ON
   110            ON   ON   OFF  OFF
   135            ON   OFF  ON   ON
   150            ON   OFF  ON   OFF
   300            ON   OFF  OFF  ON
   600            ON   OFF  OFF  OFF
 1,200            OFF  ON   ON   ON
 1,800            OFF  ON   ON   OFF
 2,400            OFF  ON   OFF  ON
 3,600            OFF  ON   OFF  OFF
 4,800            OFF  OFF  ON   ON
 7,200            OFF  OFF  ON   OFF
 9,600            OFF  OFF  OFF  ON
19,200            OFF  OFF  OFF  OFF

Generate Interrupts:                       SW2-6
Interrupts off                                OFF
Interrupts on                                 ON

B.  Communications Mode switch settings:
Mode Select:  SW1-5     SW1-6
Communications    ON       ON

RS-232C signals:  SW1-7    SW2-7
                     ON       OFF

Data Format:       SW2-1     SW2-2
8 data 1 stop         ON        ON
7 data 1 stop         ON        OFF
8 data 2 stop         OFF       ON
7 data 2 stop         OFF       OFF

Parity:                               SW2-3     SW2-4
none                                               ON
odd                                      ON        OFF
even                                     OFF       OFF

Generate LF Out after CR:         SW2-5
yes                                  ON
no                                   OFF

C.  Printer mode switch settings:
Mode Selection:  SW1-5    SW1-6
Printer             OFF      ON
SIC P8 Emulation    ON       OFF
SIC P8A Emulation   OFF      OFF

CTS selection:    SW1-7    SW2-7
Normal CTS           ON       OFF
Secondary CTS        OFF      ON

Data Format:      SW2-1
8 data 1 stop        ON
8 data 2 stop        OFF

Delay after <CR> out:   SW2-2
none                      OFF
32 ms                     ON

Line Width/Video:       SW2-3    SW2-4
40/video on                ON       ON
72/video off               ON       OFF
80/video off               OFF      ON
132/video off              OFF      OFF

Generate <LF> after <CR>:  SW2-5
yes                           ON
no                            OFF

------
About the terminal jumper block:  
The terminal jumper block (the chip-like thing with the arrow) 
determines the wiring of the DB-25 connector.  When the arrow on the 
block points to the word TERMINAL, the SSC output connector is wired 
as DCE; that is, the SSC is prepared to talk directly to a printer or 
another computer's modem port, without the use of a null-modem 
adapter.  When the arrow on the jumper block points to the word 
MODEM, the SSC is wired as DTE and is prepared to talk to DCE such as 
a modem, again, without the use of a null-modem adapter.  The use of 
a null-modem adapter is equivalent to reversing the position of the 
jumper block.

SIC P8 and SIC P8A emulation:  These modes are provided for 
compatibility with the original Apple Serial Interface Card firmware. 
 In other words, you probably don't need to use these modes.

--Dave Althoff, ][.
-- 
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