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- Path: grapool30.rz.uni-frankfurt.de!news
- From: raftopou@stud.uni-frankfurt.de (Joerg Raftopoulos)
- Newsgroups: comp.sys.amiga.hardware
- Subject: searching for a serial expansion board...
- Date: 02 Mar 96 21:55:20 +0100
- Organization: J. W. Goethe-Universitaet Frankfurt/Main
- Message-ID: <1715.6635T1315T1023@stud.uni-frankfurt.de>
- NNTP-Posting-Host: dialin144.rz.uni-frankfurt.de
- X-Newsreader: THOR 2.22 (Amiga;TCP/IP) *UNREGISTERED*
-
- HIGH!
-
- i`m an amiga 3000 desktop owner and i`m running out of zorro slots. my
- machine has has four zorro3 slots and i filled them all.
-
- 1 x Retina Z3
- 1 x GVP I/O Extender
- 2 x BSC ISDN Master
-
- the system should be able to handle 2 x s0 basic rate interfaces (4 bearer
- channels) and four modems (2 x usr v34+; 2 x usr 14k4 dhst) connected to
- s0`s via two creatix isdn a/b terminal adaptors. isdn hardware works more
- or less, the beta device for the 2nd bsc isdn master has some minor bugs,
- but it`s working. serial interface hardware is more crucial... i`ve tried
- several serial boards without success.
-
- vector connection
- -----------------
- 4 serial and 2 parallel ports. device driver is buggy, it works only with a
- 32k xpr buffer and doesn`t cope with amitcp. even worse it slows the system
- down and mouse movement isn`t smooth while serial data transfer.
-
- gvp i/o extender
- ----------------
- 2 serial and 2 parallel ports. doesn`t work with hydra, cts line won`t be
- acknowledged. xpr and amitcp are ok. with gvp i/o patch no system slowdown.
-
- c= a2232
- --------
- 7 serial and no parallel ports. maximum speed is 3 port locked to 19k2bps or
- one to 115kbps. nice active single slot card but possible baudrates are to
- low. i need at least 2 x 115kbps and 2 x 38k4bps.
-
- bsc multiface ii/iii
- --------------------
- 2 serial and 1 (iii) or 2 (ii) parallel ports. works with xpr, and amitcp.
- eats a little more performance than the gvp i/o extender. not enough serial
- ports per slot.
-
-
- are any alternative boards out there? at least 4 serial ports per slot are
- needed, 16 is excellent. auto rts/cts handling and 64byte fifo (e. g. 16c750)
- and/or own expansion board cpu would be nice.
-
-
-
- --
- I love the sound of breaking guitars
-
-