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
11
x
13x
15x
17x
19x
21x
23x
OK
1
OK
2
OS7-ENI-C24
1x
3x
5x
7x
9x
11
x
13x
15x
17x
19x
21x
23x
OK
1
OK
2
22x
20x
18x
16x
14x
12x
10x
8x
6x
4x
OS7-ENI-C24
1x
3x
5x
7x
9x
11
x
13x
15x
17x
19x
21x
23x
OK
1
OK
2
22x
20x
18x
16x
14x
12x
10x
8x
6x
4x
EM
P
LIN
K
ACT
TE
MP
FA
N
CONSOLE
/MODEM
EM
P
LIN
K
ACT
SEC
TE
MP
FA
N
CONSOLE
/MODEM
OS7-GNI-U2
OK
1
OK
2
AC
T
LIN
K
AC
T
LIN
K
RX
TX
RX
TX
1
2
OS7-GNI-U2
OK
1
OK2
AC
T
LIN
K
AC
T
LIN
K
RX
TX
RX
TX
1
2
OS7-GNI-U2
OK
1
OK
2
AC
T
LIN
K
AC
T
LINK
RX
TX
RX
TX
1
2
OS7-GNI-U2
OK
1
OK
2
AC
T
LIN
K
AC
T
LIN
K
RX
TX
RX
TX
1
2
50/6
0H
z, 8
.0/7
.0/3
.5 A
100
/11
5/2
50V
OV
ER
TE
MP
DC
O
K
AC
OK
50/6
0H
z, 8
.0/7
.0/3
.5 A
10
0/1
15/25
0V
OVER
TE
MP
DC
O
K
AC
O
K
21x
23x
19x
21x
23x
22x
17x
19x
21x
23x
22x
20x
15x
17x
19x
21x
23x
22x
20x
18x
x
50/6
0H
z, 8
.0/7
.0/3
.5 A
10
0/1
15/25
0V
OVER
TE
MP
DC
OK
AC
O
K
Chassis
Grounding Lug
