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From: progreen@ncw.net (Chuck Orem)
Newsgroups: comp.sys.apple2.comm
Subject: Re: Super Serial Card Dip Pin Settings Help Needed!
Date: 17 Nov 1995 18:27:34 GMT
Organization: North Central Washington Network
Lines: 101
Message-ID: <48ik6m$bsm@golden.ncw.net>
References: <erpeters.816561530@copper>
NNTP-Posting-Host: bing.ncw.net
X-Newsreader: TIN [version 1.2 PL2]

Eric J.Peters (erpeters@copper.ucs.indiana.edu) wrote:

> 	If anybody could help, I've got an Apple Super Serial card and
> 	 need to know what the dip switches do. *(Yeah, I said pin in the 

       APPLE SUPER SERIAL CARD DIP SWITCH FUNCTIONS
 
 
 ______________________ Switch Block #1 ______________________
|Switch number      Definition | Switch number      Definition|
|------------------------------|------------------------------|
|1   2   3   4       Baud Rate | 5   6            Mode Setting|
|==============================|==============================|
|ON  ON  ON  ON      Undefined | ON  ON         Communications|
|ON  ON  ON  OFF            50 | OFF ON                Printer|
|ON  ON  OFF ON             75 | ON  OFF      SIC P8 emulation|
|ON  ON  OFF OFF           110 | OFF OFF     SIC P8A emulation|
|ON  OFF ON  ON            135 |______________________________|
|ON  OFF ON  OFF           150 |
|ON  OFF OFF ON            300 |
|ON  OFF OFF OFF           600 |
|OFF ON  ON  ON           1200 |
|OFF ON  OFF ON           2400 |
|OFF ON  OFF OFF          3600 |
|OFF OFF ON  ON           4800 |
|OFF OFF ON  OFF          7200 |
|OFF OFF OFF ON           9600 |
|OFF OFF OFF OFF         19200 |
|______________________________|
 
 ______________________ Switch Block #2 _____________________________
|Switch   Definition  | Switch  Def | Switch    Definition           |
|---------------------|-------------|--------------------------------|
|1        Data Format | 2  CR delay | 3   4     Line width/video     |
|=====================|=============|================================|
|ON   8 data, 1 stop  | ON   32 ms  | ON  ON   40 columns, video ON  |
|OFF  8 data, 2 stop  | OFF  none   | ON  OFF  72 columns, video OFF |
|                     |             | OFF ON   80 columns, video OFF |
|                     |             | OFF OFF  132 columns, video OFF|
|_____________________|_____________|________________________________|
 
 ____________ Switch Block #2 cont'd __________  _______Handshaking_______
|Switch   Definition  | Switch  Definition     | | Switch    Definition  |
|---------------------|------------------------| |-----------------------|
|5    Linefeeds       | 6       Interrupts     | | 1-7/2-7     CTS       |
|---------------------|------------------------| |-----------------------|
|ON   add LF after CR | ON      Interrupts on  | | ON/OFF Normal (Pin 20)|
|OFF  don't add LFs   | OFF     No interrupts  | | OFF/ON Alt    (Pin 19)|
|_____________________|________________________| |_______________________|
 
 ______________________________  ________________________________________
|  Connector Pin Assignments   ||         Jumper Block Wiring            |
|------------------------------||----------------------------------------|
|  10 Pin   DB-25      Signal  || SSC signal  MODEM (pin) TERMINAL (pin) |
|  Header  Connector    Name   ||----------------------------------------|
|------------------------------||    TXD         TXD   2       RXD  3    |
|    1        1      Frame GND ||    RXD         RXD   3       TXD  2    |
|    2        2        TXD     ||    RTS         RTS   4       DCD  8    |
|    3        3        RXD     ||    CTS         CTS   5       DCD  8    |
|    4        4        RTS     ||    DSR         DSR   6       DTR 20    |
|    5        5        CTS     ||    DCD         DCD   8       RTS  4    |
|    6        6        DSR     ||    DCD         DCD   8       CTS  5    |
|    7       19       SCTS     ||    DTR         DTR  20       DSR  6    |
|    8        7     Signal GND ||----------------------------------------|
|    9       20        DTR     || Note that RS-232-C signals on the SSC  |
|   10        8        DCD     || use negative-true logic; that is, they |
|______________________________|| are true at 0v and false at +5 volts   |
                                |________________________________________|
 
 _________________________________________  ______________________
|                                         | |                     |
| Explanation Of Signals                  | |    Jumper Block     |
| ----------------------------------------| |---------------------|
| GND     Ground, either Frame or Signal  | |       MODEM         |
| TXD     Transmit Data                   | |   ______________    |
| RXD     Receive Data                    | |  |              |   |
| RTS     Request To Send                 | |  |      /\      |   |
| CTS     Clear To Send                   | |  |     /__\     |   |
| DSR     Data Set Ready                  | |  |______________|   |
| SCTS    Secondary CTS                   | |                     |
| DTR     Data Terminal Ready             | |      TERMINAL       |
| DCD     Data Carrier Detect             | |      (Printer)      |
|_________________________________________| |_____________________|
 
Pins 1-7 and 2-7 are set together to determine the SSC pin to be read
for the Hardware Handshaking signal. Generally set to monitor Pin #20.
 
Common Configurations: [Don't Forget The JUMPER Block]
 
       Hi Speed Modem                  ImageWriter I/II
      1234567  1234567                 1234567  1234567
ON     XXXXXX  XXXXXX                     X XX  X  XX
OFF   X              X                 XXX X     XX  XX


--

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