Cisco Model D-PCG1000 PowerKEY CAS Gateway Referencia técnica

  

 

Operations Alert Bulletin 
Ensuring Proper GQAM Operation and 
Provisioning of the GbE Port 

Cisco is aware of several instances in which system operators have sought to return 
for repair the Cisco GQAM modulator (part number 740450). Among the issues cited 
for the return are that the GQAM modulator does not produce a radio frequency 
(RF) output signal, and that the Gigabit Ethernet (GbE) port of the modulator cannot 
be provisioned. Cisco engineers have studied these issues and believe that, in a vast 
majority of cases, the modulators being returned are not loaded with the minimum 
code that ensures proper operation.  

See Recommendations, which follows, for a listing of the minimum code that 
ensures proper GQAM operation, including the ability to provision the GbE port. 
System operators should ensure that they are running the correct revision of code 
prior to returning GQAM modulators for repair. 

 
 

To ensure proper operation of the GQAM modulator, system operators must load 
GQAM code 1.1.2 or later onto their system. GQAM code 1.1.2 was released with 
System Release (SR) 2.2/3.2 Service Pack 3. 

System operators who also want to provision the GbE port of their GQAM 
modulator need to ensure that both the system release software and the GQAM 
software are correct. The ability to provision the GbE port of the GQAM modulator 
was added to the DNCS as a new feature in SR 2.5/3.5/4.0 Service Pack 1. However, 
the GQAM 3.1.x release was the first GQAM software to support this feature and 
was officially released with SR 2.5/3.5/4.0 Service Pack 2. System operators who 
want to provision the GbE port of the GQAM modulator need to install  
SR 2.5/3.5/4.0 Service Pack 2 or later. 

Cisco recommends that system operators contact their North American marketing 
representative to obtain the necessary software.