Medium Optical Disk (RW551/RW552) Library
6–10
EK–MOL80–SV. B01
In addition to checking the position of the interface select switch on power up,
the controller is informed of any change to this switch during normal operation.
If the switch position is changed, a BUS RESET signal is sent to the autochanger
on the internal SCSI bus.
NOTES
It is important to provide proper termination
on whichever external SCSI bus (single-ended
or differential) that is in use. If the SCSI bus is
not being daisy-chained to another peripheral
(and terminated there) then termination must
be provided at this PCA.
Single-ended and differential SCSI
terminators are different.
NOTE
The unused ports can either have external
cables/terminators connected to them or not.
Picker
The picker is capable of holding two disk cartridges at once. Its two thumbs can
be addressed in two ways. One way is to address the picker in single-picker
mode, and the second way is to address the picker in dual-picker mode.
Single-Picker Mode
In single-picker mode, the picker is addressed as a single element number. The
driver cannot address each thumb individually; the firmware makes the best
choice for which thumb to use.
SCSI commands, such as Read Element Status and Mode Sense, report back a
single element address for the transport element. In this jukebox, the single
element address is 0.
Dual-Picker Mode
In dual-picker mode, each thumb on the picker is considered an element and is
addressed individually by its own element number, 16 or 17.
Even though it is in dual-picker mode, the picker can also be addressed as a
single element when the translate assembly is executing Exchange, Move and
Position to Element commands. The translate assembly may be given the single
element numbers of 0 (default), 16 or 17.
Содержание RW551
Страница 27: ...Medium Optical Disk RW551 RW552 Library 3 2 EK MOL80 SV B01 Figure 3 2 Rear Panel SCSI Connect...
Страница 34: ...Chapter 3 Product Configuration and Operation EK MOL80 SV B01 3 9 Figure 3 4 Control Panel Menu Tree...
Страница 92: ...end...
Страница 139: ...Chapter 5 Removal and Replacement EK MOL80 SV B01 5 47 Figure 5 49 Jukebox Exploded View 1 of 2...
Страница 140: ...Medium Optical Disk RW551 RW552 Library 5 48 EK MOL80 SV B01 Figure 5 49 Jukebox Exploded View 2 of 2...
Страница 141: ...Chapter 5 Removal and Replacement EK MOL80 SV B01 5 49 Figure 5 50 Jukebox Power Harness...
Страница 142: ...Medium Optical Disk RW551 RW552 Library 5 50 EK MOL80 SV B01 Figure 5 51 Jukebox Pulley and Rope Diagram...
Страница 166: ...Chapter 6 Theory of Operation EK MOL80 SV B01 6 23 Figure 6 10 User Zone Layout for 1 3 Gbyte Media g 1...
Страница 167: ...Medium Optical Disk RW551 RW552 Library 6 24 EK MOL80 SV B01 Figure 6 11 User Zone Layout for 1 3 Gbyte g 16...
Страница 168: ...Chapter 6 Theory of Operation EK MOL80 SV B01 6 25 Figure 6 12 User Zone Layout for 2 6 Gbyte Media 1 024 bytes sector...
