C-COR NA15T Series Procedures Manual - Table 6.
22
EDFA Controls and Indicators
MX0860
Revision B
Table 6.
EDFA Controls and Indicators
Item
Label
Function
1
STATUS
LED
Green indicates adequate optical input power is present and the pump(s)
are functioning normally.
Yellow (Minor Alarm) indicates a parameter that will not cause damage or
affect operation of the EDFA unit, but may be near an operational limit.
Red (Major Alarm) indicates a parameter that could affect the operation of
the transmitter.
The EDFA will shut down under certain alarm conditions. After shutdown,
the EDFA may power up again if the monitored values return to normal.
Refer to Table 7 for descriptions of alarm states.
2
LASER
keyswitch
ON
position—Pumps are enabled and can provide optical amplification
when the key is turned to this position. The
STATUS
LED will flash
yellow for a few seconds when the keyswitch is turned, indicating the
pumps are not yet in a steady state.
OFF
position—Pump(s) are off. Yellow LED should not be lit.
3
DISPLAY/NEXT
Pushing this button changes the LCD described in Item 5 to the next
display mode. The display will read
ALARM
with a short description in
case of an alarm. Refer to Table 7 for descriptions of alarm states. The
display modes are as follows:
■
Pwr In
gives the input optical signal level in tenths of a dBm
■
Pwr Out
gives the output optical signal level in tenths of a dBm
■
P1 Bias
gives the status of pump 1 in the amplifier
■
P1 Temp
gives the temperature of pump 1 in the amplifier
■
P2 Bias
gives the status of pump 2 in the amplifier
■
P2 Temp
gives the temperature of pump 2 in the amplifier
■
Unit Temp
gives the temperature of the interior of the unit
■
Keyswitch
shows the position of the keyswitch (
ON
or
OFF
)
■
Pwr Supply
gives the status of the power supply
■
Model
gives the C-COR model number of the unit
■
S/N
gives the C-COR serial number for the unit
■
Rev
gives the revision level of the unit
MX0860.fm Page 22 Wednesday, August 25, 1999 1:34 PM