That's what I thought. But wanted to make sure. The AUI port of the IMSB300 is actually an IMSB431 which used a 5V transiever, so I am assuming the transiver on the IMS300 needs to be 5V as well. Got to look for one as most transievers are 12V.... Thanks, Ram -----Original Message----- From: ard(a)p850ug1.demon.co.uk [mailto:ard@p850ug1.demon.co.uk] Sent: Wednesday, November 03, 2004 7:18 PM To: cctalk(a)classiccmp.org Subject: Re: A new transputer toy.... I would guess so. The differential links are just the result of feeding normal links through 'RS422' bufferes (26LS31 transmitter, 26LS32 receiver). If you don't hve the official Inmos converter TRAM (which is not really a TRAM as it doesn't contain a transputer IIRC), you can easily wire up said chips. I've done it several times. -tony (c) 2004 OpenLink Financial Copyright in this message and any attachments remains with us. It is confidential and may be legally privileged. If this message is not intended for you it must not be read, copied or used by you or disclosed to anyone else. Please advise the sender immediately if you have received this message in error. Although this message and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by Open Link Financial, Inc. for any loss or damage in any way arising from its use.