IBM 4800-741 Hardware Service Guide - Page 60

Removing, modules

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Updated July 14, 2008 Removing the I/O modules To remove the I/O modules: 1. Follow the instructions in "Removing the covers" on page 29 to remove the front bezel and top cover. 2. Follow the instructions in "Removing the top plate" on page 32 to remove the top plate. 3. If required for your model, follow the instructions in "Removing the air duct (Models 722, 74x, 78x, and C4x)" on page 44 4. If required for your model, follow the instructions in "Removing the processor fan (Models 742, 782 only)" on page 45. 5. Remove any cable attachments from the I/O modules. B A Figure 30. Opened I/O latch 6. See Figure 30. Locate the I/O modules latch, ( A in Figure 30). Open the latch by grasping and turning it in a clockwise direction. 7. Press tab ( B ) and slide the I/O module out of the slot. 8. To replace an I/O module, reverse these procedures. Note: Before installing a new RS-485 module, ensure that the jumpers on the new module match the removed, old module. 42 SurePOS 700 Series: SurePOS 700-721/741/781, 722/742/782 Hardware Service Guide

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Removing
the
I/O
modules
To
remove
the
I/O
modules:
1.
Follow
the
instructions
in
“Removing
the
covers”
on
page
29
to
remove
the
front
bezel
and
top
cover.
2.
Follow
the
instructions
in
“Removing
the
top
plate”
on
page
32
to
remove
the
top
plate.
3.
If
required
for
your
model,
follow
the
instructions
in
“Removing
the
air
duct
(Models
722,
74x,
78x,
and
C4x)”
on
page
44
4.
If
required
for
your
model,
follow
the
instructions
in
“Removing
the
processor
fan
(Models
742,
782
only)”
on
page
45.
5.
Remove
any
cable
attachments
from
the
I/O
modules.
6.
See
Figure
30.
Locate
the
I/O
modules
latch,
(
±A²
in
Figure
30).
Open
the
latch
by
grasping
and
turning
it
in
a
clockwise
direction.
7.
Press
tab
(
±B²
)
and
slide
the
I/O
module
out
of
the
slot.
8.
To
replace
an
I/O
module,
reverse
these
procedures.
Note:
Before
installing
a
new
RS-485
module,
ensure
that
the
jumpers
on
the
new
module
match
the
removed,
old
module.
A
B
Figure
30.
Opened
I/O
latch
Updated
July
14,
2008
42
SurePOS
700
Series:
SurePOS
700-721/741/781,
722/742/782
Hardware
Service
Guide