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REAR
1
2
3
12
1
2
3
1) PORT A (RS-422)
Used for communicating with external
devices in full-duplex RS-422.
2) LAN
10/100 Base-T ethernet connection.
3) PORT B (RS-422/RS-485)
Used for communicating with external
devices in full-duplex RS-422 or half-duplex
RS-485
4) ALARM IN
ZR-DHD1621NP : 16 alarm inputs
ZR-DHD921NP : 9 alarm inputs
5) ALARM OUT
4 alarm outputs.
6) S-VIDEO
Monitor output as S-VIDEO signal.
Notice
Connect and power IEEE 1394 devices prior
to powering DVR. Some devices may not be
recognized when both HDD and CD/DVD-
R/RW devices are present.
4
5
6
7
6
7
5
4
12
7) IEEE 1394
Connect external IEEE 1394 devices
(FireWire) such as HDD and CD/DVD-RW.
8) MONITOR
Monitor output as composite signal.
9) SPOT OUT
Spot monitor output as composite signal.
10) AUDIO IN/OUT
RCA terminals for audio recording and
playback.
11) POWER Switch
Main power switch.
12) VIDEO INPUT & LOOP OUT
(ZR-DHD1621NP : 1~16 / ZR-DHD921NP :
1~9)
Connect asynchronous video signal 1.0
Vp-p (75 ohm). Loop out is changed to
HI-Z automatically.
13) AC SELECT
Select AC115V or 230V.
14) AC INLET
Input power voltage.
8
9
10
13
8
9
10
13
11
14
11
14
5
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