
NDR-BA5104,NDR-BA5208,NDR-BA5416
User’s manual ver.1.2
All rights reserved © AAT Holding sp. z o.o.
102
CONNECTING PERIPHERALS TO ALARM IN/OUTS
9. CONNECTING PERIPHERALS TO ALARM IN/OUTS
NDR-BA5416 feature 16 alarm inputs NDR-
BA5208 feature 8 alarm inputs. DVR’s listed above
feature 1 alarm relay output. Terminal blocks are equipped with clamps in order to facilitate wiring.
Detailed placement of rear panel connectors is described in chapter 2.
Note:
Both inputs and output are not protected from results of atmospheric discharges. User should take
appropriate measures to protect inputs/outputs from voltage surges that may damage the DVR.
Alarm outputs are not protected from overload. User should protect them using additional means.
Maximum current for relay output should not exceed 0,5A for 125VAC or 1A for 24VDC. If system
needs connecting devices with bigger current demand, please use additional circuits, e.g. utilizing
relay.
9.1. Alarm input
Alarm inputs are voltage sensitive, therefore shorting them with ground activates them.
Typical alarm input circuit:
Switch or motion
detector
INPUT 1
GND