RadioFrame Networks Inc DH2 User Manual

Method of Procedure 
Operations and Maintenance 

RFN_3.1 Beta

 

alarm from the far end. 

 

Notify far end. 

AIS LED is lit 
(Alarm Indication Signal) 

Far end equipment failure 

 

NOTE: The AIS LED is lit 
when the All Ones Keep 
Alive signal is received. 

 

Check for proper operation 
of external site equipment. 

 

Notify far end. 

FE/CRC LED is lit 
(Framing Error/CRC Error) 

T1 is no configured for ESF 

 

Configure T1 correctly. 

 Bit 

errors 

 

Check T1/E1 cabling. 

 

Check T1/E1 levels. 

 

Check for T1/E1 noise or 
crosstalk. 

 

Site controller failure 

 

Replace Site controller. 

BPV/PD LED is lit 

T1 is not configured for 
B8Zs 

 

Configure T1 correctly 

 Bit 

errors 

 

Check T1/E1 cabling. 

 

Check T1/E1 levels. 

 

Check for T1/E1 noise or 
crosstalk. 

 

Site controller failure 

 

Replace iSC-3. 

Net LED is lit 
(Network Loopback) 

The Site controller has 
received an in-band or out-
of-band loopback code, and 
is in loopback mode. 

 

Notify far end. 

Local LED is lit 
(Local Loopback) 

Front panel switch has put 
the iSC-3 into loopback 
mode. 

 

Push and hold the Sel/Loop 
switch for 2 seconds. This 
action takes the unit out of 
loopback mode. 

 

EAS breaker on Cabinet 
breaker is on, but POWER 
LED (green) on EAS is not lit. 

No power connected to 
EAS. 

 

Check power source. 

 Cabling 

 

Check power cabling to EAS; 
replace cable if necessary. 

Wrong EAS response. 

Miswired modular cable 

 

Check EAS modular cabling. 

AC fail alarm 

AC input, or an open or 
disconnected alarm lead. 

 

Verify AC in put, check for 
open and disconnected 
alarm leads. 

High temperature alarm 

AC input to air conditioner 

 

Verify AC input. 

 

Site air conditioner 

 

Call for service on air 
conditioner.