Panasonic WJ-HD500A User Manual

20

(Remaining HDD Capacity Alarm Output)

CONTROL Input/Output

(15)

Alarm Device

Relay, etc.

(6)

Ground

Power Failure Process
Completion Output

UPS Shut Down

Line Fail signal
(Normally Open)

C

Before connecting the UPS,

   refer to the manual of
   your UPS.

Power Failure Detect Input

Ground

Common

Power Cable

Disk Recorder
WJ-HD500A

CONTROL

(19) (17)

(16)

Uninterrupted
Power Supply

to AC outlet

■

• 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

■

• 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.