Panasonic WJ-HD500A Operating Instructions Manual page 20

Connection with the Uninterrupted Power Supply (UPS)
• The figure shows an example of how to connect a UPS as protection against power failures.
• When a power failure detect input is received from the UPS, the disk recorder's power failure process starts to process this
signal to turn off its power supply.
• When the power failure process is completed, the disk recorder outputs a signal to the UPS.
• When the UPS receives the completion signal from the disk recorder, the disk recorder's power is turned off
Disk Recorder
WJ-HD500A
Connection with CONTROL output
• Signal outputs (Pins #1-6, 18) can be used to connect alarm devices such as a buzzer or lamp to inform you of the opera-
tion status by sounding a buzzer or lighting a lamp when a signal is output.
• The figure below shows an example of how to connect an alarm output (Pin #6) to warn of low remaining HDD capacity.
20
Power Failure Process
Completion Output
Power Failure Detect Input
Ground
(19) (17) (16)
CONTROL
(Remaining HDD Capacity Alarm Output)
Ground
(6) (15)
CONTROL Input/Output
UPS Shut Down
Line Fail signal
(Normally Open)
Common
CBefore connecting the UPS,
Uninterrupted
Power Supply
Power Cable
Alarm Device
refer to the manual of
your UPS.
to AC outlet
Relay, etc.