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LC575 Networking : PDS or Comm Slot?

omidimo

Well-known member
I finally got my grubby hands on a LC575 mobo that I stuck in my Edu-CD-Rom-less LC550 and it such a nice upgrade. Super thanks to AichEss for the board.

I want to get the old gal networked so that I can pull files off my local ftp server. Now there are two options, going with the LC-PDS card or the Comm Slot card. I am familiar with the Com Slot II cards (via 6400/6500/TAM ownership) but would appreciate some feedback on using the first version in the 575 or is it better to stick to the PDS cards. 

:?:

 
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Macdrone

Well-known member
the comm slot cards I have seen are all Apple branded, not the PDS network cards.  So for ease of use with no extra software I would say comm slot over pds, unless you get a presto plus.

 

omidimo

Well-known member
There are cheap Farallon Comm Slot 1's on eBay, but I am not sure if they fit as well in the 68k Macs based with the small-ish mobo area since I have read that they did not follow Apple's spec precicisely. I was just not sure if there is a benefit one over the other outside of the driver issue. 

In the 6x00 series/CSII, it was worth it to free up a PCI slot, well back when it was current and 10BaseT was more than enough for that blazing DSL 768k DSL and then super awesome Linksys BEFSR41, oh the memeroies of early broadband days. 

 

Cory5412

Daring Pioneer of the Future
Staff member
There's not really a big benefit, unless you have alternate plans for the LCPDS slot. A 575 with comm slot Ethernet might run a IIe PDS card (PDF), for example. (the 580/630, however, will not.)

Otherwise, it's not like you're going to notice a performance difference or anything. I've never personally had problems with drivers for LCPDS networking equipment, they either just work when you install the OS, or they use drivers that are pretty easy to find online.

 

olePigeon

Well-known member
*The 68040 versions of the Macintosh LC 5xx and Performa 5xx series do not recognize the Apple IIe Card when there is a communication card occupying the Communication Slot.

 

omidimo

Well-known member
I was not planning on using the IIe card on the 575, but from the sounds of it there is really no beneficial difference between PDS or CS. I do have an Apple branded card somewhere so that will do.

If i ever get around to getting a cheap IIe card, I might use it in another Color Classic.

 

olePigeon

Well-known member
I think the advantage is if you use the CS slot for an ethernet card, you can use the PDS slot for an accelerator or video card.  Otherwise, no, there's no benefit.

 

omidimo

Well-known member
If I could ever find a PowerPC Upgrade then it would be worthwhile keeping the PDS slot empty, but they seem to be pretty rare these days.

 

just.in.time

Well-known member
I have one of the PDS based Farallon cards that have been selling on ebay for ~$12 on my LC575 mobo.  It works pretty well for moving files to and from an FTP server hosted by the system with that board in place (currently a Color Classic).  I did use the floppy disk that came with the card to install drivers for the card.  No idea if it would work without.  Works great with the driver though!  No experience with a Comm slot ethernet card.

 

Bunsen

Admin-Witchfinder-General
There are cheap Farallon Comm Slot 1's on eBay
Are there?  I've never been able to find them, let alone a CS-II.

*The 68040 versions of the Macintosh LC 5xx and Performa 5xx series do not recognize the Apple IIe Card when there is a communication card occupying the Communication Slot.
Well that's disappointing.

 

BlueBoy

Member
Let me also add that I agree with Trash80toHP_Mini. The comm slot can only take a modem or network card as far as I can tell. The pds slot can take lots of cards, graphics, apple ii card (not with a comm slot card installed, apparently), accelerators, etc. (I wish my 636 could take a IIe card, sigh...)

 

Trash80toHP_Mini

NIGHT STALKER
The comm slot can only take a modem or network card as far as I can tell. The pds slot can take lots of cards, graphics  .  .  .
Thanks for fleshing out what appears to have been a rather terse response, I thought that was clear in context, but I guess not.  :-/

I couldn't have said it that well, thanks again.

 

Cory5412

Daring Pioneer of the Future
Staff member
Wouldn't you want to... use that i/o capability?

That said, what is there realistically for a 575? LCPDS Apple IIe cards work in them, but only barely when there's nothing in the comm slot, so the dream of a system with both a IIe card and fast networking is pretty thoroughly quashed.

As has been noted, there are other cards they, do exists and were built at some point but they're generally not common.

I'd pretty much consider the standard loadout for anything that has an LCPDS slot to be an Ethernet card in either the LCPDS slot or Comm slot, and not worry about it too hard unless you happen to find something else.

Outside of situations where you're doing a collection of LCPDS cards, if you're looking for expansion prowess, anything that has an LCPDS slot is not the right machine to be in. That's where you really want to go toward like a Quadra 650/800.

I don't think there's a single universal answer to this, but I think the question is, for the money, what is the right mix of expansion options, functionality/speed, etc. I think the 575/580/475-605/630 and the like are very fine and nice machines. I think for most people, if you're looking for something to put a video card in, they're not particularly ideal, and the options aren't the most appealing. It's not like you're going to get a jackhammer or an 8*24GC in a 475.

 
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