That said, actually the better makes of D-connector are rated for quite high voltages (500V and above). They were used on valved equipment, for example. So I you could use a D connector for mains, not that I would, of course. 9 pin D connectors were quite common for mains on BBC equipment but only on backplanes for slot mounted units, never as flying leads. Lee. ---------------------------------------------------------------------------- ---- This email is intended only for the above named addressee(s). The information contained in this email may contain information which is confidential. The views expressed in this email are personal to the sender and do not in any way reflect the views of the company. If you have received this email and you are not a named addressee please delete it from your system and contact Merlin Communications International IT Department on +44 20 7344 5888. _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Scanning Service. For further information visit http://www.star.net.uk/stats.asp