Radiant Communications FOM-E1, Инструкция по установке и эксплуатации

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Chapter 4 Troubleshooting and Diagnostics Installation and Operation Manual
4-2 Troubleshooting FOM-E1/T1 Ver. 2.0
4.2 Troubleshooting
Table 4-1 gives details on troubleshooting. Perform the actions listed under
Corrective Measures in the order given in the table until the problem is corrected.
Table 4-1. Troubleshooting Chart
Symptom Probable Cause(s) Corrective Measures
PWR LED is
OFF No AC power Verify that the power outlet is providing the required power.
Ensure that both ends of the AC power cord are connected
properly.
E1/T1 cable is disconnected
from the RJ-45 ELECTRICAL
connector Ensure that the E1/T1 cable is connected properly to the
RJ-45 connector.
One of coaxial cables is
disconnected or defective Ensure that both ends of the coaxial cables are connected
properly and that the cables operate properly.
The attached equipment
outputs are not according to
G.703 electrical levels Check that the output levels of equipment attached to
FOM-E1/T1 comply with G.703 electrical levels.
ELECTRICAL
LOW LED is
ON
The SW3, SW4 switches are
not set correctly Verify that the SW3, SW4 switch positions correspond to the
E1/T1 interface type
.
ELECTRICAL
AIS LED is ON The attached equipment is
transmitting “All 1s" string Ensure that the equipment attached to the FOM-E1/T1 is
transmitting real data (not “All 1s").
No optical connection Ensure that both transmit and receive fiber connections on
the local and remote units are connected properly. OPTICAL LOSS
LED is ON
Optical budget is too low Measure the optical loss over the fiber link and verify that it
meets the product specifications.
The equipment attached to
the remote unit is
transmitting “All 1s" string Check the transmission of the remote attached equipment. OPTICAL AIS
LED is ON
The remote unit detected
Electrical Low alert Check the remote unit and the remote attached equipment
for possible fault.