Re: ZipGS and Appletalk questions

[Rubywand <rubywand@swbell.net>]

ISCA AppleII Librarian writes ...
> 
> I have a couple questions about the ZipGS.
 ....

> 
> Q2:  In the ZipGS Control CDA, does On/Off in the Misc. settings mean
>      the same as On/Off mean for the switch1 and sw2 dip switches.
>      IE:  Sw1-3 Appletalk Delay ON does this mean delay is enabled or
>      disabled?  Should the CDA also say Appletalk Delay On  (the default
>      is Off).  I've tried both ways and can't see if one is better than
>      the other judging from dropped chars in PT3.1 (19200 baud direct
>      serial (null modem RTS/CTS) connection to HP workstation.  [Turning
>      Appletalk off completely does fix the drop char problem but then I
>      lose my printers and server :-)  Also, the dropped chars are very few
>      and show up mainly as packet errors during zmodem transfers.  I've
>      tried a PT3.1 "patch" released a couple years ago to fix hardware
>      handshaking problems with appletalk, but all it ever does is to
>      cause the Appletalk servers to become disconnected after a couple
>      minutes - not exactly the "fix" for PT3.1 I was looking for :-)]
 ....


     The naming of signals, on-disk docs stack, and CDA/CDEV displays
combine to supply a prime example of how to thoroughly confuse users.
Basically, you've got a mess.


This may help ...


  SW1         CDA/CDEV Label    CDA*/CDEV* Readout  *patched version

  OFF  ON
1       x     Cache Disable        Off
2  x          Joystick Disable     On
3       x     AppleTalk Delay      Off
4  x          Counter Delay        On
5  x          CPS Follow           On
6       x   (Zip Diasble "ON"= do not slow down during startup)
7 ----      (set for cache size)
8 ----      (set for cache size)


     The above (DIP switch SW1 1-6) are the factory default settings.
It's the setup we use. (An AppleTalk user may want to set AppleTalk
Delay switch SW1-3 to OFF.)



  SW2

  OFF  ON
1       x     Slot 1               Fast    
2       x     Slot 2               Fast
3       x     Slot 3               Fast
4       x     Slot 4               Fast
5       x     Slot 5               Fast
6  x          Slot 6               Slow
7       x     Slot 7               Fast
8  x          Speaker Delay        On


     The above (DIP switch SW2 1-8) settings are the ones we use. This
is the same as the factory default except that SW1-2 is set ON.

     According to the on-disk docs stack, The "Speaker Delay" switch is
set to "ON" to slow down the GS to normal speed during access to the
speaker. So, 'naturally', setting the switch to "OFF" gives an "On"
reading in the CDA/CDEV display.



Rubywand