On 2002.03.27 22:29 pat(a)cart-server.purdueriots.com wrote: And Jochen Kunz <jkunz(a)unixag-kl.fh-kl.de> wrote: And then pat(a)cart-server.purdueriots.com also wrote: I am under the impression that the same cable used for the DECstation 5000 series is also used with the DEC 3000 series of machines. Given that, a BC18P (or BC18Z) is not compatible. Although I don't have a complete pinout on the BC18P, I do know that pin 3 of the BC18P (pins 1,2,3 of the BC18Z) is used for video. For the 5000 (and hopefully the 3000) the first few pins are used for the keybaord. And Doc <doc(a)mdrconsult.com> added: Having not found the 5000 cable pinout myself, I did a pinout for it some time back. I will paste it to the end of this and we will go from there. Mike DECstation 5000 keyboard/mouse cable and related info --------------- --------------- --------------- --------------- --------------- The DECstation 5000 has a 15 pin (male) D connector on the back for keyboard and mouse connections. There is a cable that plugs into the 5000 connector and has a keyboard socket (RJ-11) and a mouse socket (7 pin mini-din) on the other end. I am under the impression that the same cable is also used with the DEC 3000 series of machines. The part number for the cable is 17-02640-01. For a keyboard, use a LK201 or LK401. For a mouse, use a VSXXX-AA (round hockey puck) or VSXXX-GA (rectangular). CABLE INFO The cable pinout (from the DECstation 5000/240 manual) is: Pin Signal Desc. 1 GND Ground (to keyboard socket) 2 KEY.TX Keyboard transmitted data 3 KEY.RX Keyboard received data 4 +12v Keyboard power 5 GND Ground 6 MSE.RX Mouse received data 7 MSE.TX Mouse transmitted data 8 GND Ground (to mouse socket) 9 GND Ground (to mouse socket) 10 NC 11 NC 12 NC 13 +5v Mouse power 14 -12v Mouse power 15 GND Ground (to mouse socket) I have also verified the above info with a VOM. KEYBOARD INFO As for the keyboard, I had a couple of them open a while back (to clean out the cookie crumbs) and traced them out somewhat. Looking into the end of the plug on the cable coming from the keyboard. |------------| | o o o o | | B R G Y | |___| |___| |____| B - Black - Data from keyboard R - Red - +12v to keyboard G - Green - Ground Y - Yellow - Data to keyboard And looking into the socket on the end of the 17-02640-01 cable: (also applies to the keyboard socket on a terminal such as a VT420) |------------| | o o o o | | Y G R B | |___| |___| |____| Pin Y to pin 3 of the 15 pin D connector on cable 17-02640-01 G to pin 1 ... R to pin 4 ... B to pin 2 ... I do not include pin numbers for the keyboard connector because I have found on-line references to some of this info and in some cases the pin numbers differ. Your mileage may vary. MOUSE INFO As for the mouse, you will find the pinouts below and the signals. Please note that the pin numbers may not be the official DEC numbers. Here again, I have seen on-line references to some of this info and the pin numbers differ. Looking into the plug coming from the mouse: 5 6 7 o o o 4 o === o 1 o o 3 2 1 - -12v 2 - Data to mouse 3 - Ground 4 - Data from mouse 5 - +5v 6 - nc 7 - nc And looking at the socket on a machine or end of the 17-02640-01 cable: 7 6 5 o o o 1 o === o 4 o o 2 3 Pin 1 to pin 14 of the 15 pin D connector on cable 17-02640-01 2 to pin 6 ... 3 to pins 8, 9, & 15 ... 4 to pin 7 ... 5 to pin 13 ... 6 nc 7 nc