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Improved System Availability
An enhanced diagnostic ability reduces both system time required for online
repair and the total offline repair time spent on the unit itself. Online error and
status reporting to the central processor system allows software-controlled diag-
nosis of the electronics.
Options
• MSF0006 - Dual access capability
• MSF0007 - Rotational position sensing (required)
• MSK4025 - Upgrade kit for MSU0402 to MSU0451
Characteristics
Table 1-1 lists the operational characteristics of both devices.
The physical characteristics are:
• Height- 39.2 in. (99.7 cm)
• Width- 22.0 in. (55.9cm)
• Depth- 44.5 in. (113.0 cm)
• Weight - 680 lb (309 kg)
The Honeywell M4451 disk pack (or equivalent) can be removed from the unit,
stored, and inserted as the need arises. For supplies and accessories order informa-
tion, refer to the Honeywell Computer Supplies Catalog, Order No. BY62, or con-
sult your Honeywell Marketing Representative.
Disk File Format Consideration
Introduction
Physically, the MSU0402 and MSU0451 disk packs are the same. The logical file
formats for labels, T&Ds, and alternate track locations are different, therefore,
disk pack files cannot be interchanged between the MSU0402 and MSU0451. The
M4451 disk pack used on the MSU0402 requires reformatting prior to use on a
MSU0451.
1-2
AT71-03
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