Table 7-1 Controller Troubleshooting - Motorola iDEN Site Controller System Manual

Chapter 7 System Troubleshooting
Controller
Table 7-1 Controller Troubleshooting
Indication
Yellow Alarm LED is lit
AIS LED is lit
(Alarm Indication Signal)
FE/CRC LED is lit
(Framing Error/CRC Error)
BPV/PD LED is lit
(Bipolar Violation/Pulse Density
Violation)
Net LED is lit
(Network Loopback)
Local LED is lit
(Local Loopback)
7-4
Possible failure
Controller is receiving an
alarm from the far end.
Far end equipment failure
T1 is not configured for ESF.
Bit errors
Controller failure
T1 is not configured for B8ZS
Bit errors
Controller failure
The Controller has received an
in-band or out-of-band
loopback code, and is in
loopback mode.
Front panel switch has put the
Controller into loopback
mode.
Gen 3 Site Controller System Manual
Corrective action
• Check for proper operation of external
site equipment.
• Notify far end.
• 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.
• Configure T1 correctly.
• Check T1 / E1 cabling.
• Check T1 / E1 levels
• Check for T1 / E1 noise or crosstalk.
• Replace the Controller.
• Configure T1 correctly.
• Check T1 / E1 cabling.
• Check T1 / E1 levels
• Check for T1 / E1 noise or crosstalk.
• Replace the Controller.
• Notify far end.
• Push and hold the Sel / Loop switch
for 2 seconds. This action takes the
unit out of loopback mode.
68P80801E30-A 5/1/2002