RadioFrame Networks Inc DH2 User Manual

Page of 164
Method of Procedure 
Operations and Maintenance 
122 
RFN_3.1 Beta
 
Indication 
Corrective Action 
 
 
Reset the breaker and measure the load through the 
breaker using a current measuring device. 
 
 
Does the current exceed 80% of the rating of the breaker? 
 
 
If yes, remove and replace the breaker with a breaker that 
meets the 80% rule. 
 
 
Note: Maximum rating of the shelf is 30 amps and per CB 
position is 30 amps. 
 
 
Do not exceed the CB/plant ratings.
 
 
 
If current does not exceed 80% rating and breaker does not 
trip, troubleshooting is complete.
 
7.3.3 RadioFrame 
System 
RadioFrame Networks equipment and components are not field repairable. Do 
not attempt to repair RFN equipment and components in the field. RFN 
components are individually tested prior to shipment. Should a failure occur 
replacement boards must be inserted and the RFS re-booted.  
This section describes troubleshooting information for each component of the 
RadioFrame System:  NCU, ACU, RFU, and URU. If the provided solutions do 
not resolve the problem, refer to the Field Guide to the RadioFrame System for 
further troubleshooting information. If none of the provided solutions resolve the 
problem, contact the Customer Assistance Center (TAC) at (425) 424-7620. 
7.3.3.1 
Network Chassis Unit 
NCU front ports 
Description 
Port 1 (RJ45) 
iSC—iDEN installations only 
Port 2 (RJ45) 
Ethernet LAN—network installations only 
Ports 3-8 (RJ45) 
additional Ethernet LANs 
EIA-232 9-pin serial port 
for debugging—Customer Service use only 
NCU back ports 
 
Ports 1-8 (RJ45) 
ACUs—up to 8 ACUs may be connected to the NCU 
5MHz/1PPs  IN 
BNC connector for timing interface