About Connectors
35
This section explains ho
w
to connect an Uninterrupti
b
le Po
w
er Supply (hereafter UPS) as part of your po
w
er outage countermeasures.
W
hen the recorder receives a po
w
er outage detection signal from the UPS, it
b
egins its internal po
w
er off se
q
uence (process to stop recording to
protect the recorder).
After the internal po
w
er off se
q
uence is complete, a signal is output from the Po
w
er outage recovery completion output to the UPS and the
recorder is then ready to turn off po
w
er.
Uninterruptible Power Supply (UPS) Connectivity
Important:
•
Be sure to use a UPS that provides a sine-
w
ave output.
Do not use a UPS that provides a s
q
uare
w
ave. Doing so may damage the recorder.
Uninterr
u
ptible
Power S
u
pply
(UPS)
13
23
19
(Power O
u
tage reco
v
ery complection o
u
tp
u
t)
(O
u
tage detection inp
u
t)
(Signal gro
u
nd)
Power cord
Refer to the instr
u
ction
man
u
al for the UPS
yo
u
are
u
sing.
(Signal gro
u
nd)
(Detection)
(Sh
u
tdown)
Recorder
To electric o
u
tlet
ALARM/CO
N
TROL
*
ND400_Basic.book 35 ページ 2008年4月8日 火曜日 午後3時59分