Ari (Alarm Reset In); Connecting To The Ultra Wide Scsi Port; Figure 2-12 Alarm Reset Input Connectors; Figure 2-13 Scsi Port - Honeywell HRXDS16D1T User Manual

Connect the device to the COM and NC (Normally Closed) connectors or COM and
NO (Normally Open) connectors. NC/NO is a relay output which sinks 2 A @ 125 VAC,
1 A @ 250 VAC, 1 A @ 30 VDC (NC) and 5 A @ 125 VAC, 2 A @ 250 VAC,
3 A @ 30VDC (NO).

ARI (Alarm Reset In)

An external signal to the Alarm Reset In can be used to reset both the Alarm Out signal
and the DVR's internal buzzer. Mechanical or electrical switches can be wired to the ARI
(Alarm Reset In) and GND (Ground) connectors. The threshold voltage is below 0.3V
and should be stable at least 0.5 seconds to be detected. Connect the wires to the ARI
(Alarm Reset In) and GND (Ground) connectors.

Connecting to the Ultra Wide SCSI Port

A SCSI port is provided to connect external storage devices for recording or archiving
video. Connect the external SCSI hard disk drive (RAID) cable to the high-density 68-pin
female UltraWide SCSI port. The length of SCSI cable should not exceed 5 feet (1.5
meters). You can connect up to 8 UltraWide SCSI devices with SCSI IDs set from 0 to
15 except for 7, which is assigned as the Host ID.
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Figure 2-12 Alarm Reset Input Connectors
Figure 2-13 SCSI Port
Note The SCSI bus must be terminated, otherwise the DVR will not
operate properly.
Note When using low speed SCSI devices, the recording speed might
decrease.
HRXDS Series DVR User Guide