RX50 / RX33 Questions related to PDP-11's

< I am almost sure you need a cable without the PC-twist. Also, you < probably need to set the drive select jumpers properly (Can somebody tel < us what to?). Remember that the PC-twist not only swaps over 2 of the < drive select lines, it also gives separate motor on signals for the 2 dr The "twist" cable only applies to PC or systems using PC patterned interfaces. It DOES NOT APPLY TO RQDX and distribution boards used in Qbus systems. RQDXn uses a single bussed motor on and drive selection by drive select jumper. If you use a RX33 drive try using only one for starters, that will lower the sillyness factor. If you media is RX50... why not use an RX50. If all else fails and your configuring a second system move the controller that works over to the target or move the target controller to the running system as a second drive/unit. Allison