'---S_E_R_I_E_S_4_4_1_4_8_T_O_5_8
1
~2TIONI
_MEMORY
UPGRADE
~
~
INTRODUCTION
The Series
44/48
to
58
Field Upgrade, product number 30558C, includes;
4
MB
Memory Array PCA
Nameplate
Card Cage Label
Upgrade Sticker
3 Flat Cable Assemblies (FCA)
The new hardware consists
of
a minimum
of
five PCAs
that
replace the existing PCAs:
PCS
and
CTL or
CPSI
CPS-E
PCA(s)
ALU
PCA
CMP
PCA
Memory Controller(s)
256
kb
Memory PCA(s)
CPS-F
PCA
(PIN
30476-60002)
ALU-F
PCA
(PIN
30476-60001)
CMP-2
PCA
(PIN
30090-60087)
.S58 Memory Controller
(P
IN
30172-60001)
4 MB
MemoryPCA
(PIN
30479-60001)
)
The Series
58
can include up to 8 MB
of
memory but does
not
support
256
kb
Memory PCAs. The Series
44/48
must have two card cages to be upgraded to a Series
58.
A single card cage system must first be
upgraded using the Series
44
Expansion Kit (30087
A)
..
Installed all memory
peAs
in the second card cage.
See Figure
2-1
for a graphic representation
of
the Series field upgrade.
44/48
PCS
CIl
AlU
CMP
CPS-E
Pronto
Memory
Controller
256
kb
Memory
1
MB
Memory
)
58
CPS-F
AlU-F
CMP-2
S58
4
MB
Memory
Memory
Controller
Figure 2-1. Series 44/48
to
58
Field Upgrade
2-1
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