I would love to see pictures of the ends of the ATR cable. I have some ATR
cards and we will be putting one on display soon but I have never seen a
cable or the wall box.
In later versions of IBM token ring the wall mounted box (MAU) did do
something, but in original IBM TR it was strictly passive. It had some
switches to take devices out of the ring manually, but no electronics. Since
ATR was earlier than that I doubt that the wall box had any active function.
Gil
A. G. (Gil) Carrick, Director
The Museum at CSE
University of Texas at Arlington
Department of Computer Science & Engineering
Box 19015, 471 S Cooper Street
Arlington, TX 76019
817-272-3620
http://www.cse.uta.edu/TheMuseum at CSE/
  -----Original Message-----
 From: cctech-bounces at 
classiccmp.org
 [mailto:cctech-bounces at 
classiccmp.org] On Behalf Of Jules Richardson
 Sent: Wednesday, July 13, 2005 6:21 AM
 To: cctalk at 
classiccmp.org
 Subject: Re: Apollo stuff
 On Tue, 2005-07-12 at 18:16 -0700, Al Kossow wrote:
 > Bob said:
 >  
...
  Question for Apollo fans - when setting up an Apollo
token
 ring, is it really as simple as just chaining the machines
 together in a loop? I seem to remember the manuals (the few
 that we do have) mentioning plugging in to wall-mounted
 boxes, but it's not clear if those are just for cable routing
 or whether they actually do something more important.  
...
 cheers
 Jules