I *assume* that the cable has at least one wire that connects ground of the RL11/RLV1[12] controller to ground of the RL drive. Further, I have never seen an RL drive that had a ground wire connected from the metal cahssis of the drive to the ground of the cabinet in which the drives was mounted. I have once seen a cable that had a braided wire at one end (or was it on both ends?), but AFAIK was that the cable for an RLV controller installed in a BA23 or BA123 box. That is a short cable (IIRC 50 cm) to the bulkhead at the rear side of the box. So, what you describe (strange things if not grounded) are effects that I have not seen (up till now) ... Perhaps the experts can elaborate more, as I do not consider myself to be an expert :-) - Henk, PA8PDP. ________________________________ Van: cctalk-bounces at classiccmp.org namens Julian Wolfe Verzonden: di 10-01-2006 21:53 Aan: 'General Discussion: On-Topic and Off-Topic Posts' Onderwerp: RE: RL drive problems ...? I know this sounds stupid, but is the cable grounded? I've had really stupid/strange things happen when my RL02 cable is not grounded properly. This message and attachment(s) are intended solely for the use of the addressee and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If you are not the intended recipient or agent thereof responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by telephone and with a "reply" message. Thank you for your cooperation.