Olson Technology OTEB-CO-B - Manual (Page 8)

025-000533 Rev X6 8 www.olsontech.com
DESCRIPTION OF STATUS ALARM
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.
NOTES ON OPERATION
The EDFA should have good grounding and grounding resistance to 4Ω. 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 microproc-
essor 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 anhy-
drous alcohol after several rounds of connection/disconnection from the unit. NEVER clean the optical connectors with the unit
powered!