Справочник Пользователя для Pelco C2622M

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C2622M (2/07)
17
Troubleshooting
LED indicators on the front and rear panels of the FX82051 module allow you to monitor operational 
status:
LED indicators on the front panel (refer to Figure 2) allow you to monitor operating power, 
100BASE-FX port status, and optic signal/laser status. Refer to Table B for information about 
the front-panel indicators and associated troubleshooting guidelines.
LED indicators on the rear panel (refer to Figure 3) allow you to monitor RJ-45 10BASE-T/
100BASE-TX port status. Refer to Table C for information about the rear-panel indicators and 
associated troubleshooting guidelines.
 
Table B.  Troubleshooting with Front-Panel Indicators
Indicator Color
Meaning
Possible Cause
Corrective Action
Power LED (Pelco badge)
Blue
Power is being 
applied to the 
module.
No action required.
Not lit
Power is not being 
applied to the 
module.
Power connection is faulty.
Check power connection. 
If module is rack mounted, 
reseat module or power 
supply as necessary.
Power supply has failed.
Replace power supply.
Loss of power occurs due to 
tripped circuit breakers, 
blown fuses, or faulty 
electrical service.
Check circuit breakers, fuses, 
or electrical service as 
necessary.
100BASE-FX Status LED (
)
Green
A fiber link is 
established.
No action required.
Flashing green
Data activity is 
occurring on the fiber 
link.
No action required.
Red
Far end fault indica-
tion (FEFI). The 
optical signal 
transmitted from this 
port is not detected 
by the remote link 
partner.
Defective fiber transmit port 
on local module
Replace local module.
Laser fault on local module 
(Optic Fault LED on local 
module flashes red).
Refer to the Optic Fault LED 
section in this table.
Defective fiber receive port 
on remote module
Replace remote module.
NOTE: The Optic Fault LED on the remote module is red. Refer to the Optic Fault 
LED
 section in this table for additional information.
(Continued on next page)