Conference wonder::turbolaser

1124.0. "SHELF_OK signal on KFTIA FWD SCSI ?" by TLAV01::IAN () Thu Mar 06 1997 05:38

    Hi,
    
    Regarding the KFTIA FWD ports. Do the Qlogic ISP1020 chips (at
    firmware rev V2.10) support a signal called "SHELF_OK" ?
    
    Thanks,
    Ian.
    
    The reason that I ask:
    
    I'm installing a BA660-AB into an 8400. This contains 2 x BA356-LB
    shelves. I intend to install some RZ29B-VW's in the shelf and connect
    back to the KFTIA with DWZZB-VW (in slot 0) - BN21K-02 - BN21W-0B -
    H879-AA.
    
    There are 2 small jumpers on the backplane of the BA356 which 
    determine what happens to the SHELF_OK signal. If the KFTIA supports
    SHELF_OK and I'm using a DWZZB on port 0, then the book suggests I
    jumper W2 pair of pins. 
    
    The book also states, SHELF_OK, is the result of logically "anding" a
    signal based on the speed of all blowers on the shelf and the "power good"
    signals for all power units on the shelf.
    
    Considering a BA356-LB has no blowers, what's the status of this 
    SHELF_OK signal ?