ADC P-61-743 Manuale Utente

Pagina di 30
ADCP-61-743 
• Issue 3 • September 2004 
Page 9 
© 2004, ADC Telecommunications, Inc. 
2.2    Maintenance Installation (Existing System) 
Replacement of the RTAU module in existing IBBC shelves should follow normal 
maintenance procedures. Since a module has already been in service in the affected slot, the 
backplane pins will have been trained into alignment with subsequent replacement modules. If 
excessive resistance is encountered upon insertion, remove the module and inspect for 
misalignment or obstructions. 
This procedure assumes that the IBBC shelf has already been populated with a RTAU 
module. If this is the first time that the IBBC shelf has been populated with a RTAU 
module, go to 2.1 Initial Installation.
 
Installation consists of unpacking and installing the RTAU module, and verifying that it is 
functioning properly. Use this procedure to install a RTAU module. 
 
  Warning: To prevent electrical shock, never install equipment in a wet location or during a 
lightning storm. When installing or modifying telephone lines, disconnect lines at the network 
interface before working with uninsulated lines or terminals.
 
 
  Caution: Electronic modules can be damaged by electrostatic discharge (ESD). Before 
handling modules, wear an anti-static discharge wrist strap to prevent damage to electronic 
components. Place modules in anti-static packing material when transporting or storing. When 
working on modules, always place them on an approved anti-static mat that is electrically 
grounded.
 
  1.  Open the front cover of the Soneplex Broadband (V5) chassis.  
  2.  Open the shipping carton and carefully unpack the RTAU module from its protective 
packing material. Inspect the module for damage 
  3.  Refer to chassis markings above the module slot (Figure 2) to install the RTAU module 
in the full-height slot marked TAU. 
4.  Align the module edges of the RTAU with the mounting slot module guides. Use the 
injectors to seat the module in the chassis. If there is excessive resistance, remove the 
module and check for obstructions or improper alignment.