Small but Significant Correction to The X3T10 Minutes.
Bob.Snively at eng.sun.com
Mon Aug 15 22:43:46 PDT 1994
After careful consideration of the intent and capabilities of
the SCA connector, I have placed a single signal called
"Diff Sense" on pin 46 of the connector for differential
devices and "ground" on pin 46 of the connector for single-ended
The continuous wire connected to pin 46 will be pulled up and
detected as a differential signal by drives with differential
capability. The installation of any single-ended device on
the connector will automatically pull down the entire line and
disable the differential drivers. If the backplane is for
single-ended drives only, all pin 46s can be grounded directly.
No auxuliary ground is required.
Three pins now remain reserved. I have plans for them, which
I will tell you all about soon.
More information about the T10