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Gaining Access to Memory Modules
B-4 Mode Switch Settings and Option Installations
Figure B-2 DIMM and DRAM SIMM Locations (7H4385-49 shown without safety
cover)
Gaining Access to Memory Modules
BeforeyoucanreplacetheDRAMSIMM,youmustgainaccesstoitbyremovingthe
safetycoverandthenetworkexpansionmodule,ifoneisinstalled.Togainaccesstothe
DIMM,youonlyneedtoremovethesafetycover.
1 DRAM SIMM 2 DIMM 3 Main PC board
1
2
3
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6
1
2
3
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6
7G-6MGBIC-A
1X
G
R
O
U
P
1
G
R
O
U
P
2
11X
13X
23X
OFFLINE/
RESET
COM
CPU
M
G
M
T
GR
OUP
SELECT
GR
OUP
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7
8
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POE
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X
14X
24X
G
R
O
U
P
3
25X
35X
26X
36X
G
R
O
U
P
4
37X
47X
38X
48X
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48V --- 20A M
AX
OPTIONAL
PO
WER INPUT
G
R
O
U
P
1
1X
7
H4
3
8
5
-
4
9
F
AST ENET
DFE
À
Á
Â
Electrical Hazard: To prevent exposure to an energy hazard in a 7H4385-49 connected
to an external N-POE Power System, disconnect the 48-Vdc power cable from the 48-Vdc
input connector before servicing or removing the 7H4385-49.
Riesgo Eléctrico: Para prevenir la exposicion a un riesgo electrico en una tarjeta
7H4385-49 conectada a un sistema externo de energia N-POE Power System,
desconectar el cable de poder de 48-Vdc del conector de entrada 48-Vdc antes de dar
servicio o remover la tarjeta 7H4385-49.
Elektrischer Gefahrenhinweis: Um den Schutz vor el. Schäden des Moduls
(7H4385-49) zu gewähleisten, bei Verwendung der N-POE Systeme, sollte dies bevor
man dieses entnimmt oder Servicearbeiten daran vornimmt, vom 48-Vdc Stecker getrennt
werden.