Panasonic WJHD500 Instructions d'exploitation télécharger pdf (Page 19)

(Remaining HDD Capacity Alarm Output)

CONTROL Input/Output

(15)

(Earth)

Alarm Device

Relay, etc.

(6)

Power Failure Process

Completion Output

UPS Shut Down

Line Fail signal

(Normally Open)

Before connecting the UPS,

refer to the manual of

your UPS.

Power Failure Detect Input

Ground Common

Power Cable

Disk Recorder

WJ-HD500B

CONTROL

(19) (17) (16)

Uninterrupted

Power Supply

to AC outlet

■ Connection of 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.

■ 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.

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Panasonic WJHD500 Instructions d'exploitation Page 19