When The Bps Works; How Many Backup Power Supply Control Status - ZyXEL Communications BPS-120 Support Notes

VSG-1200 Support Notes

When the BPS works?

When the device power is lower then 10V, the BPS start to provide external power to
device.
When does the BPS turn off the power after BPS provides the
power to device?
1. Remote device disconnected from BPS port.
2. Over temperature around the per-port MOSFET. When the temperature goes down,
the BPS may turn on the power to the device again.
3. Remote device power plug-in.
4. BPS output voltage drops to below 10 volts for more than 40ms.

How many backup power supply control status?

There are four status for the BSP.
1. BPS inactive, power off.
2. BPS active, not providing power to the unit.
3. BPS active, providing power to the unit.
4. BPS active, power not available to the port.
What is the max 12V power output when BPS provides power
to unit?
The max power is 120 Watt.
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