Multi-use accessory connection

Glenn Depp

So. As I have my first 3rd party hardware device working successfully with my 6600 connected to the accessory port on the 6600, I am looking at in a coule months acquiring a different one. My question is what is the "best" way to split the accessory port for multiple devices. I understand it is a DB15 connector which is the same as a SVGA connector. Is there any prefered device to use to make use of more than one device on the accessory port? I was looking at SVGA splitters (not sure the wiring would match up) and A/B monitor selectors but not sure if they would be feasible to use and I was worried about simply splitting the port into two separate cables with one at the flex. Any ideas?

KD0RC

Hi Glenn, it is not a DB15 connector, even though it has 15 pins. It is the same connector used for SVGA, but I don't have the name of it handy.

Are the two devices using the same connections, or are they doing different things and using different signals from ACC connector?

Geoff AB6BT

I beleive the VGA connector is called HD15 or DE15

Glenn Depp

Yes, I used the wrong name. My question still applies. Looking at wiring of the SVGA connectors, it seems like most are inline with what is used in the flex connection. It is HD15 connector.

Al K0VM

A SVGA A/B switch will likely not work because its designed for video and does does not switch all of the lines that Flex uses. Indeed, SVGA does not use all of the 15 pins that Flex uses. Most SVGA cables do not have all of the lines that Flex uses.

AL, K0VM

David Decoons, wo2x

And be careful most SVG a cables have several pins all tied together for ground. Make sure whatever cable you use has individual wires for each pin.

Dave wo2x

Glenn Depp

I would make my own cable, not an svga cable. Was simply curious if having two seperate modem types tied into the same port at the same time would create an issue as they would not be seperated like a switch would be able to do. Not even sure I would need to do this at this point, just curious I suppose.