Honeywell 6000 Series Reference Manual page 10

Options to the DSC include:
• A Dual Simultaneous Channel, DCH190 and DCB} 90B, consisting of one
basic disk channel, one Additional Drive Electronics (ADE190 and
ADE190B) and one data recovery module, for dual-channel crossbar
operation in which data can be transferred between the DSC and two
disk pack drives simultaneously.
• An Additional Data Channel, ADC190 and ADCI90B, provides a second
link adapter interface to the external user system (EUS) for transferring
data between the DSC and EUS on both interfaces, but not simultaneously.
One ADC 190 or ADC 190B may be applied to the DSC and one to the
optional Dual Simultaneous Channel, DCHl90 or DCHI90B.
• For two controls with single channels, a Dual Control Crossbar,
DCXl90 and DCXI 90B, and a disk Control Adapte r, CCA 190 and CCAl90B,
are required to provide crossbarring to all drives.
• For two controls with dual channels, DCH190 and DCH190B, crossbarring
is provided to all drives. (DCXI90 or DCXl90B is not required. )
Disk Pack Drives
The disk pack drive used by the subsystem is either the DSU190 or the compatible
DSU190B Disk Storage Unit. The DSU190 (Figure 1-6A) is an electromechanical disk pack
drive with a single mounting spindle housed in a low-profile cabinet. The DSU190B
(Figure 1-6B) is a single-spindle, moving-head disk pack drive, with associated Device
Oriented Electronics (DOE) housed in a single low-profile cabinet. Both disk pack drives
include easily accessible chambers for mounting the disk pack and convenient operator
control panels.
PHYSICAL SPECIFICATIONS
Dimensions
38 in. high
22 in. wide
49 in. deep
Installed Weight
700lb
Square Footage (including door swing)
12 sq, ft
OPERATING ENVIRONMENT
TeInperature
HUInidity
60
0
-
90
0
F (15
0
-
32
0
C)
20% - 80%
POWER REQUIREMENTS
208 V, 60 Hz/220 V, 50 Hz
1.
5 kVA
AIR CONDITIONING
4425 Btu/hr
Figure I -6A. Disk Pack Drive (DSU 190)
1-4
DB37