Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!watmath!clyde!burl!ulysses!harpo!decvax!mcnc!ecsvax!ghb
From: ghb@ecsvax.UUCP
Newsgroups: net.micro.pc,micro.ibm
Subject: T-switches for PC parallel
Message-ID: <2325@ecsvax.UUCP>
Date: Wed, 18-Apr-84 10:55:40 EST
Article-I.D.: ecsvax.2325
Posted: Wed Apr 18 10:55:40 1984
Date-Received: Fri, 20-Apr-84 00:28:58 EST
Lines: 28


     If you  have tried  to use a T-switch to link a
couple of PC's with a parallel printer  and had
problems, you might be using the wrong T-switch. It
seems that most of the boxes out there strap pin #1
(protective ground) common to  all the  connected
devices.   This  doesn't work  with  the  PC parallel
configuratioon  which uses  pin #1 for Data Strobe and
pin #25 as the ground.

Now BLACK BOX Corp. has a series of three T-switch
boxes that have been built for the PC parallel port.
There is a 2 to 1 box ($104), a 4 to 1 box ($169), and
a cross-over box ($159).

Their address:
           BLACK BOX Corp.
           P.O.Box 12800
           Pittsburgh, PA 15241-9980
		412/746-5500

As is usually mentioned at the end of these blurbs: I
don't work for BLACK BOX and do not own any of their
stock.   I have been very satisfied with their
delivery response time and after-sales support.

George Brett ...decvax!mcnc!ecsvax!ghb
NCECS POB 12035 RTP NC 27709 (919)549-0671