________________________________ Van: cctalk-bounces at classiccmp.org namens Charles Verzonden: ma 21-05-2007 19:23 Aan: cctech at classiccmp.org Onderwerp: DEC remote power controller cable? Via the Dayton Hamvention and Dan C., I now have a nice "new" corporate cabinet for my 11/23+ and two RL02's, installed and working. It came with an 874-D Remote Power Controller which I would like to use as intended (i.e. turn everything on by flipping the BA-11SA front panel power switch). That switch connects directly to a 3-pin male Molex connector on the rear of the BA chassis. The 874-D has several 3-pin female Molex connectors labeled "DEC Power Bus". Am I correct in assuming that I just need a 3-wire extension cable between the BA chassis and one of those Power Bus connectors? If so, is there a DEC part I should be looking for? If not, any ideas which mating connectors to order (it's not critical that I use factory original pieces)? The two connectors are not identical families (the BA-11SA's connector is flat on one side and rounded on the other; on the 874-D they are rectangular). Thanks for any help. -Charles ________________________________ Yes, 3 wires is enough, but if you don't care for protection (turn off when the system gets too hot), 2 wires will be fine. The 874 power controller has 3 pins, same size as the pins used to connect power to an old 5?" floppy drive, AFAIK. One pin is ground. One of the other pins switches the main relay on, if that pin is connected to ground (the one you want to use). Easy to find out, the circuit is low-voltage. Just short 2 pins ... The third pin switches the main relay off when connected to ground and has "higher priority" than the "switch-on pin". The "switch-off" pin is used for high temperature protection. I don't know that round connector on the BA11-SA. Perhaps you can find the diagram on bitsavers ... the power controllers are! - Henk. This message and attachment(s) are intended solely for use by 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 co-operation.