Carrier Access 1750 Manual De Usuario

There are no field repairable items on a NIM. In a redundant configuration, 
replacement of a NIM will not impact user ATM network connectivity. In a single NIM 
configuration, all ATM connectivity will be disrupted during card replacement. Follow 
the steps below to replace a NIM.

1. Ensure that a replacement module is available.

2. Remove the chassis front cover. The Broadmore 1750 retains power; 

individual NIMs may be removed/replaced without power disruption to other 
modules. 

3. Remove the fiber connection and loosen retaining screws at the top and bottom 

of the NIM to be replaced.

4. Use the installed ejectors to unseat the NIM from the midplane. This is done 

by simultaneously pushing up on the top ejector and down on the bottom 
ejector.

5. Remove the defective NIM by pulling it straight out the front.

6. Insert the replacement NIM, ensuring correct alignment with the card guides 

and midplane connector.

7. Firmly press the new NIM into place so that it is fully seated with the midplane 

connector. Tighten both retaining screws (finger tight only) and install the fiber 
connection.

8. The new NIM will automatically configure to the last known configuration of 

the slot where installed. In a single NIM system (non-redundant), originated 
SVCs and PVCs will be re-connected per the current connection list. The far 
end must originate the re-connection of incoming SVCs. Monitor activity for 
the ATM connection to ensure proper operation

9. Replace the chassis front cover.

10. Return the defective NIM for repair. Contact Customer Service for a Return 

Material Authorization (RMA) number and detailed procedures.