04-19-2004, 09:27 PM
Hi,
There can be both a grove in the socket that matches up to a ridge on the connector and a missing pin in one position that matches up with a blocked connector in the header. However, in many cases neither is implemented. The most common ribbon cables are made with connectors that have no ridge and with all connections open. Often the row of pins they connect to do not have the missing pin and don't even have a shell around them (although this is getting better).
Also, I've gotten ribbon cables where the ribbon was inserted backwards and the grove was on the wrong side.
Ultimately, the safest way to be sure is to find the #1 pin on the board and the #1 pin on the devices and make sure the red stripe connects those two.
--Pete
There can be both a grove in the socket that matches up to a ridge on the connector and a missing pin in one position that matches up with a blocked connector in the header. However, in many cases neither is implemented. The most common ribbon cables are made with connectors that have no ridge and with all connections open. Often the row of pins they connect to do not have the missing pin and don't even have a shell around them (although this is getting better).
Also, I've gotten ribbon cables where the ribbon was inserted backwards and the grove was on the wrong side.
Ultimately, the safest way to be sure is to find the #1 pin on the board and the #1 pin on the devices and make sure the red stripe connects those two.
--Pete
How big was the aquarium in Noah's ark?