Alcatel Carrier Internetworking Solutions 7700 Manuel D’Utilisation

Installing the Hardware

13

Once you are properly grounded, you may begin installing the 
Network Interface (NI) and CMM(s).

NI modules may be installed in any slot position from 
1 through 8 in OS7700 switches and 1 through 16 in OS7800 
switches.

CMMs may be installed in slots A or B in OS7700 and 
OS7800 switches. A minimum of one CMM is required for 
switch operations; the second CMM provides redundancy. 

In non-redundant configurations, the CMM may be installed in 
either slot A or B. In redundant configurations, the CMM 
installed in slot A will be designated primary by default. For 
more information on redundancy, refer to 

 or, for 

detailed information, refer to your Hardware Users Guide.

NI modules cannot be installed in CMM slots A or B; like-
wise, CMMs cannot be installed in any NI slot position. 

Due to the differences in their physical dimensions, OS7700 
and OS7800 CMMs are not interchangeable.

More Information on Slot Numbering. For a diagram 
showing the chassis layout and slot positions, refer to 

To install an NI or CMM module, follow the steps below.

Note. To further reduce exposure to electrostatic discharge 
(ESD) and physical damage, do not remove more than one 
module at a time from the factory packaging. Unpack one 
module, immediately install the module in the chassis, 
then repeat the sequence for another module. 

Important. Before beginning, note that the CMM 
modules and NI modules slide into the chassis card guides 
differently. CMMs have a sheet metal tray that slides into 
the guides; with NIs, the edges of the module’s printed 
circuit slide into the guides.

1 Holding the module in both hands, carefully slide it 
into the chassis card guide. The component side of the 
board should face right.

A

B

OS7700-CMM

OS7-ENI-C24

OmniSwitch 7700

TM

1

2

3

4

5

6

7

8

NI

NI

CM

M

PW

R

PS3

PS2

PS1

OS7700-CMM

OS7-GNI-U2

OS7-GNI-U2

OS7-GNI-U2

OS7-GNI-U2