RadioFrame Networks Inc RFU7 User Manual

(left) blinks to indicate Ethernet activity. All LEDs should light as green. For all 
other conditions, refer to the following table. 

Power and Status LEDs 
for cards installed in 
front or back of NCU 
are not lit 

no power to NCU 

•  Verify that the power cord is 

installed and properly seated. 

•  Verify that the power source is 

operational. 

•  Contact Customer Support. 

Status LED is red—top 
front card only 

timing source not 
available 

•  Connect the timing source. In 

iDEN installations, this is usually 
the iSC. In some cases, the timing 
source is the GPS antenna. 

•  If the timing source is connected, 

check all connections. 

 failed 

initialization 

•  Reboot the system: unplug the 

NCU, and plug it in again. Boot 
up may take several minutes. 

 

fan is not working 

•  Verify that the fan is operational. 
•  If the fan is not working, unplug 

the NCU and contact Customer 
Support. 

Status LED is red—any 
card 

card is not operational 

•  Remove and reseat card. 
•  Contact Customer Support for a 

replacement card.