Cisco Model 6109 6 MHz Off-Air Reference (NTSC) Guide De Montage

 

78-4021139-01 Rev D 

389 

 

The following procedure is recommended for a site replacing GQAMs with RFGW-1 

QAMs.  This procedure is based on creating and loading information using 

configuration files.  Managing via configuration files has the advantages of being 

able to prepare the files in advance and to be able to verify accuracy prior to being 

activated in the field.  Also, the following procedure allows you to pre-configure 

your working USRM with RFGW-1 QAMs during the day without affecting service 

by, or the performance of, the existing GQAMs and USRM. 
When using this procedure, perform the following steps before a maintenance 

window. 
1  Prepare the configuration files in advance. 
2  Provision the RFGW-1 QAMs with service group information without impacting 

service to customers by placing the QAMs OutOfService. 

3  Create the RFGW-1 QAMs on an active USRM without impacting service to 

customers. 

4  Associate service groups to output ports. 

 
You then perform the following steps during a maintenance window. 
 

5  Remove the GQAMs from the USRM. 
6  Enable the RFGW-1 QAMs to begin servicing the customers by placing the 

QAMs InService. 

 

Four configuration files must be prepared in advance for each USRM.  Use a text 

editor such as Notepad.  The names below are just suggestions, but will be used in 

the following examples.  If you use different names, choose descriptive names that 

associate the files with an individual USRM. 
The four files and their specific uses are: 
Gqams2Remove_Servername.txt 

 

lists the GQAMs to remove from the USRM 

 

Servername is the name or IP address of the USRM