Problem Descriptions And Recommended Actions; Troubleshooting Using The Front Panel Indicators; Link Error" Light Is Lit, Or Link Is Down - ADTRAN TRACER User Manual

P 40
AGE
S 4
ECTION
P D
ROBLEM ESCRIPTIONS AND
Each problem described below is followed by a list of Possible
Causes, each of which is followed by a number (or numbers)
corresponding to a Recommended Action (or Actions).
If problems persist after you have followed the Recommended
Actions, contact ADTRAN Technical Support at (800) 726-8663.
T
ROUBLESHOOTING USING THE FRONT PANEL INDICATORS
"L E
INK RROR
This alarm will activate when the RF link is not operational.
P
OSSIBLE
• The RF link is down. .................................................................... 1-10
• The RX power is below the -91 dbm threshold. .................... 1-4,7-10
• The far-end transmitter is off, or is transmitting
low power ................................................................................ 1-4,7-10
• The RF path is not aligned. ....................................................... 1,2,10
• Water is in the antenna feedhorn or connectors. ........................... 1,4
• Both units are set to the same frequency. ..................................... 5,10
• Both units are not set to the same PN code. ..................................... 6
• The connection between the BBP and the RFC
is faulty. ...................................................................................... 1,7-10
• The connection between the RFC and the
antenna is faulty. ........................................................................ 1,7-10
• The BBP or RFC is faulty. ................................................................. 10
R
ECOMMENDED
Check the RX power using the VT-100 user interface or RSSI voltage.
1.
Check the far-end transmitter for operation and proper transmit
2.
power.
Check the RF path using a spectrum analyzer or RSSI voltages for
3.
proper alignment. Have path professionally re-aligned and check
system path engineering.
Check the antenna feedhorn and all outdoor connections for water.
4.
5. Change the frequency of one radio through the VT-100 user interface
or front panel button.
Set both units to the same PN code.
6.
R
ECOMMENDED
I M P O R T A N T
" ,
LIGHT IS LIT OR
C
AUSE
A :
CTIONS
A
CTIONS
L D
INK IS OWN
61280.003L1-1B
R A
ECOMMENDED CTION
(
SEE LIST BELOW
4/12/99
)