Olson Technology OTEB-CO-B EDFA WITHOUT SNMP - Manual (Page 5)

DESCRIPTION OF STATUS ALARM
NOTES ON OPERATION
The front panel indicator LED indicator may be red, green, or off. When the LED is green
the EDFA is operating properly. When the LED is off, the unit is off. A red LED indicates
an alarm condition. The alarm condition will be displayed on the display panel.
With proper power supply, if the EDFA is functioning normally and the LED indicator is
red, the digital panel will display “READY KEY OFF. Turn on with the key. The display
shows KEY OFF for 10 seconds, then the LED indicator changes to green.
Pressing the STATUS button displays the following parameters:
• Input power -10 dBm, display => NO INPUT; the EDFA cannot be turned on and
the LED is red.
• If any fault listed above has occurred, there will be an alarm. The microprocessor will
shut down the laser automatically, and the digital panel will display the cause of the
fault.
• In order to protect the laser, there is a time-delay function. After turning the laser on
with the key, the laser will start to work after 10 seconds.
The EDFA should have good grounding and grounding resistance to 4 . According to
the international standard, on an AC three-wire plug, the middle wire is the grounding
wire.
The EDFA incorporates a high performance, high reliability, switching power supply with
over-voltage protection. The microprocessor monitors the output DC voltage. If the fuse
blows, the unit should be returned to Olson for service.
In order to keep the reflection loss to <-55dB, the EDFA uses SC/APC optical
connectors. Other connector types, such as FC/PC, cannot be used with the EDFA.
Keep the connector clean when installing the optical cables. Clean it with lint-free tissue
with anhydrous alcohol after several rounds of connection/disconnection from the unit.
NEVER clean the optical connectors with the unit powered!
<
Ω