Hardware Installation Manual   6. Hardware Maintenance 
 
Media Gateways & SBCs  61  Mediant 1000B Gateway & E-SBC 
 
6  Hardware Maintenance 
The device is a modular chassis and allows you to order any module as a Field 
Replacement Unit (FRU). This section describes the procedures for installing or replacing 
modules.  
 
 
Warning: To prevent static electrical damage to the module's printed circuit board, do 
not touch the components on the module. Instead, hold the module only on the edges 
where no electrical components are located. 
Avertissement: Pour prévenir des dégâts d’électricité statique au circuit imprimé du 
module, ne touchez pas les composants sur le module. A la place, tenez le module par 
ses extrémités où il n’y a pas de composants électriques. 
 
 
Warning: Cover all unoccupied module slots with blank panels. This ensures optimal 
internal airflow pressure within the chassis. 
 
 
6.1  Chassis Slot Assignment for Modules 
This section describes the chassis' slot assignment for the different modules.  
6.1.1  Front-Panel Module Slot Assignment 
The figure below displays the chassis' slot assignment on the front panel for the different 
modules: 
Figure  6-1:  Chassis Front-Panel Slot Assignment for Modules 
 
Please adhere to the following guidelines for slot assignment of these modules:  
  TRUNKS (PRI), BRI, FXS, and FXO Modules: 
•  The modules can be housed only in slots 1, 2, 3, 4, 5 and 6.  
•  The modules must be housed in consecutive slots. In other words, if the device 
houses three modules, they must occupy slots 1, 2, and 3 (no skipping of slots).