© JVA Technologies Pty Ltd
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Issue:3/03/2021 9:39:00 AM
OEM technical manual.docx
SPECIFICATIONS
The specifications table below outlines the power consumption of the ZLM4 and the acceptable voltage and current
ranges for different inputs and outputs.
Internal battery charger float voltage
14.2Vdc
Internal battery charger charging current
1200mA
Power consumption of ZLM4
(Note 1)
130mA at 12.5
Vdc
Maximum AC input voltage when internal battery charger is supplying 580mA
19Vac
Battery backup time (without keypad)
24 Hours
Maximum voltage on
“In1”, “SW2” and “Gate” inputs
(Note 2)
5Vdc
Maximum power provided to “Siren” and “Strobe” outputs
(Note 3)
35Watts (2.5A at
13.5V)
Maximum Energiser Joules
(Note 4)
18J
Maximum loop impedance
5000 Ohm
Maximum loop capacitance to ground
1.0uF
Minimum loop resistance to ground
1000 Ohm
Note 1:
This is the power consumption when none of the powered outputs are active and the keypad is not
connected. The rated power consumption may be lower depending on relay configuration and alarm states.
Note 2:
The control inputs as supplied with 5V fr
om a “weak pull up” circuit so that they can be controlled using dry
contacts from a relay or switch. A device with “open collector” outputs may be used. They can also be driven from a
5V switched output, so long as the driving circuit actively pulls down to ground when off.
Note 3:
This is the limit for the combination of the loads on
both the “Siren” and “Strobe” outputs.
Note 4:
This is the maximum rating of the energiser if the ZLM4 is used on the same fence as a high voltage
electric fence
energiser. Beyond this rating the ZLM4 loop circuit protection MOV’s may fail if high voltage wires are
shorted to the ZLM4 loop wires.
