If device is externally calibrated, only calibrated values are printed.
++ : high alarm, +  : high warning, -  : low warning, -- : low alarm.
NA or N/A: not applicable, Tx: transmit, Rx: receive.
mA: milliamperes, dBm: decibels (milliwatts).

                                               Optical   Optical
               Temperature  Voltage  Current   Tx Power  Rx Power
    Port       (Celsius)    (Volts)  (mA)      (dBm)     (dBm)
    ---------  -----------  -------  --------  --------  --------
    Gi0/9        32.5       3.20     385.1      -5.5      -5.0
    Gi0/10       36.9       3.25     537.7      -4.5      -9.7
    Gi0/11       35.8       3.22     393.6      -5.5      -5.0
    Te0/1        28.1       3.30      19.8       2.4      -4.2
