User guide
Removing and Adding Modules Network Interface (NI) Modules
page 5-24 OmniSwitch 7700/7800 Hardware Users Guide April 2005
Removing and Adding Modules
Using the Grounding Wrist Strap and Chassis Grounding Lug
Because electrostatic discharge (ESD) can damage switch components such as the Network Interface (NI) and
Chassis Management Modules, you must always ground yourself properly before removing or adding a
module. For this purpose, Alcatel provides a grounding wrist strap and a grounding lug located near the
bottom-right of the chassis. To properly ground yourself, follow the steps below.
1 Fasten the grounding strap to your wrist. (A grounding strap was provided in your OmniSwitch 7700/
7800 ship kit.)
2 Insert the wrist strap’s connector pin (located at the end of the strap’s tether) into the grounding lug
near the bottom-right of the chassis, as shown.
Important. For the grounding wrist strap to be effective in eliminating ESD, power supplies must be
installed in the chassis and plugged into grounded AC outlets.
OS7-ENI-C24
1x 3x 5x 7x 9x 11x 13x 15x 17x 19x 21x 23x
O
K
1
O
K
2
OS7-ENI-C24
1x 3x 5x 7x 9x 11x 13x 15x 17x 19x 21x 23x
O
K
1
O
K
2
22x20x18x16x14x12x10x8x6x4x
OS7-ENI-C24
1x 3x 5x 7x 9x 11x 13x 15x 17x 19x 21x 23x
O
K
1
O
K
2
22x20x18x16x14x12x10x8x6x4x
E
M
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IN
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A
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P
FAN
CONSOLE
/MODEM
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LINK
A
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OS7-GNI-U2
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1
O
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2
A
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K
A
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R
X
TX
R
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1
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OS7-GNI-U2
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1
O
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A
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A
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R
X
TX
R
X
TX
1
2
OS7-GNI-U2
O
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1
O
K
2
A
C
T
L
IN
K
A
C
T
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INK
R
X
TX
R
X
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1
2
OS7-GNI-U2
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1
O
K
2
A
C
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L
IN
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1
2
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7
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V
OVER
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O
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A
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21x 23x
19x 21x 23x
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17x 19x 21x 23x
22x20x
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1
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5/25
0
V
O
VER
TE
M
P
DC
O
K
A
C
O
K
Chassis
Grounding Lug