3.3
Battery Monitoring Cable
The battery also provides a battery monitoring cable with SIP-2.5mm/4P connectors at
both ends. The battery monitoring cable is used to monitor the working status of the
backup battery unit in real time.
Battery Status
LED
Information Monitored
on the OLT
The battery is being
charged.
The CHG LED is on (green).
Charge
The battery is
discharging.
The DIS LED is on (green).
Discharge
The battery is
fully-charged.
The CHG LED and the DIS
LED are both off.
Holding
3.4
LED
The battery has three LEDs, as shown in the following figure.
ALARM
DIS
CHG
Table 3-3
Indications of the LEDs
LED
Name
Color Status
Indication
Always
on
The battery is abnormal:
z
The battery is over-charged.
z
The battery temperature exceeds
the rated operating temperature.
ALARM Alarm
LED
Red
Off
The battery is normal.
Always
on
The battery is discharging.
DIS
Discharge
LED
Green
Off
The battery is not discharging.
Always
on
The battery is being charged.
CHG
Charge
LED
Green
Off
z
The battery is not being charged.
z
The battery is fully charged.
The battery is fully charged if either of the following conditions is met:
z
The CHG LED is off when the charger is in the working state
z
The voltage of the DC OUT connector is equal to or higher than 12 V
5
