ba@m2-net.UUCP (Bill Allen) (08/18/89)
Is it just me or have others been experiencing par: port
over-crowding? Sounds digitizers, video digitizers,
printers, all trying to use the port at once.
Has anyone seen:
1) A2000 internal cards that allow 2+ par ports? (ADSG has
the 2 serial ports brd)
2) A2000 internal sounds/video digitizers?
3) Ser port sounds/video digitizers (for dual ser brd above)?
4) Sounds/video digitizers that pass the par port thru?
3) Cheap A/B/C switches?
Does everyone agree it's a good idea to do a cold start
before/after A/B/C switching? If so, then A/B/C switches
aren't the answer.
What is?
--
---------------------------------------------------------
Reply-To: ba@m2-net.UUCP (Bill Allen Beogelein) M-NET, Ann Arbor, MI
or call Sharewarer's BBS at 313-473-2020 24hrs, PCP thru MIDET, 100% Amiga
---------------------------------------------------------dca@toylnd.UUCP (David C. Albrecht) (08/22/89)
In article <3761@m2-net.UUCP>, ba@m2-net.UUCP (Bill Allen) writes: > > Is it just me or have others been experiencing par: port > over-crowding? Sounds digitizers, video digitizers, > printers, all trying to use the port at once. > Has anyone seen: > 3) Cheap A/B/C switches? > Does everyone agree it's a good idea to do a cold start > before/after A/B/C switching? If so, then A/B/C switches > aren't the answer. > What is? I use the A/B/C switch solution. I don't know if it is recommended or not but it seems the only way to handle the overcrowding. I've had my 2000 for quite a while and have yet to have any problem and usually I'm switching it around with the machine up. Even if I do blow the port (which I did once before I got the switch box, swapping cables), I figure I just order an 8520 (around $20) pull the old one and swap it in. The risk is worth the ease of use to me. I got my switch box at the West Coast Computer Fair. In Computer Shopper an outfit called National Computer Accessories has what looks to be the same model as mine. They list it for $15.99 (4 way). I haven't ordered from them so I'm not able to vouch for them, good price though. Their number is (916)441-1568 (pg 257 in Sept issue). A 2 way model is 10.49. David Albrecht
jms@tardis.Tymnet.COM (Joe Smith) (08/22/89)
In article <3761@m2-net.UUCP> ba@m-net.UUCP (Bill Allen) writes: >3) Cheap A/B/C switches? >Does everyone agree it's a good idea to do a cold start >before/after A/B/C switching? If so, then A/B/C switches >aren't the answer. The advice I've heard is: For devices that get their power from a multipin connecter, it is dangerous to plug/unplug the device with the power on. You can kill the delicate electronics when not all the pins are making contact. For instance: +5v is connected but the only path to ground is thru a data line. However, A/B/C switches that switch all 25 pins on the parallel port are OK, since power is applied and removed cleanly. The DigiView manual says to not unplug the video digitizer with power on. They recommend an A/B switch that switches all 25 pins to switch from digitizer to parallel printer while running DigiView. -- Joe Smith (408)922-6220 | SMTP: JMS@F74.TYMNET.COM or jms@tymix.tymnet.com McDonnell Douglas FSCO | UUCP: ...!{ames,pyramid}!oliveb!tymix!tardis!jms PO Box 49019, MS-D21 | PDP-10 support: My car's license plate is "POPJ P," San Jose, CA 95161-9019 | narrator.device: "I didn't say that, my Amiga did!"
billsey@agora.UUCP (Bill Seymour) (08/25/89)
From article <3761@m2-net.UUCP:, by ba@m2-net.UUCP (Bill Allen):
: Is it just me or have others been experiencing par: port
: over-crowding? Sounds digitizers, video digitizers,
: printers, all trying to use the port at once.
: Has anyone seen:
: 1) A2000 internal cards that allow 2+ par ports? (ADSG has
: the 2 serial ports brd)
The CMInet card for the 2000 has an extra parallel port on it.
The port isn't a full bi-directional port like the internal one in your
Amiga, but it works great for a printer. You can digitize on the internal
port and print on the CMI port at the same time...
: 3) Cheap A/B/C switches?
I see cheap ABC switches all the time from various Tiawan importers,
I even have three or four around the house. You should be able to find one
for about $20-25...
: Does everyone agree it's a good idea to do a cold start
: before/after A/B/C switching? If so, then A/B/C switches
: aren't the answer.
I've never had any troubles switching either my serial port or my
parallel port on the fly... I don't have power hooked up through them
though.
: ---------------------------------------------------------
: Reply-To: ba@m2-net.UUCP (Bill Allen Beogelein) M-NET, Ann Arbor, MI
: or call Sharewarer's BBS at 313-473-2020 24hrs, PCP thru MIDET, 100% Amiga
: ---------------------------------------------------------
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-Bill Seymour ...tektronix!reed!percival!agora!billsey
...tektronix!sequent.UUCP!calvin!billsey
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