Table 50. IOP, IOA, and device address information for FC 5074 I/O Tower (continued)
Position Possible Failing Item DSA (BBBBCcbb)
Note: IOA and
device DSA’s will not
follow the rules
below if the IOA is
manually reassigned
after IPL.
Unit Address
D47 Disk Unit The disk unit has the
same DSA as the IOA
attached to the
internal flat ribbon
cable.
x20400FF (where x is
the same as the first
character of the
xFFFFFFF IOA Unit
Address)
D48 Disk Unit The disk unit has the
same DSA as the IOA
attached to the
internal flat ribbon
cable.
x20500FF (where x is
the same as the first
character of the
xFFFFFFF IOA Unit
Address)
D49 Disk Unit The disk unit has the
same DSA as the IOA
attached to the
internal flat ribbon
cable.
x20600FF (where x is
the same as the first
character of the
xFFFFFFF IOA Unit
Address)
D50 Disk Unit The disk unit has the
same DSA as the IOA
attached to the
internal flat ribbon
cable.
x20700FF (where x is
the same as the first
character of the
xFFFFFFF IOA Unit
Address)
Addresses — FC 5075 I/O Tower
Use the address to find the location. Then go to “Locations — FC 5075 I/O Tower”
on page 740 to find additional information.
Table 51. IOP, IOA, and device address information for FC 5075
Position Possible Failing Item DSA (BBBBCcbb)
Note: IOA and
device DSA’s will not
follow the rules
below if the IOA is
manually reassigned
after IPL.
Unit Address
CB1 Embedded IOP xxxx-10-00 FFFFFFFF
C01 Storage IOA xxxx-10-00 1FFFFFFF
Comm/Wkst IOA xxxx-10-00 E1FFFFFF
C02 (IXS capable
position)
IOP xxxx-12-00 FFFFFFFF
Storage IOA xxxx-10-00 2FFFFFFF
Comm/Wkst IOA xxxx-10-00 E2FFFFFF
C03 (empty if IXS in
C02)
IOP xxxx-14-00 FFFFFFFF
Storage IOA The IOA has the
same DSA as the first
IOP found in the
following list: C02,
CB1.
4FFFFFFF
Comm/Wkst IOA E4FFFFFF
Locations and Addresses
Chapter 5. Locations, Addresses, and Part Listings 775