4
For Technicians | AfiPass II Installation Guide
2
Prerequisite Considerations
2.1
General
Software
AfiPass II is only compatible with AfiFarm 5.4 and above.
Electrical Requirements
Designation
Requirement
Rated Voltage
24 VAC Nominal (single phase)
Input Voltage Range
20.4-27.6 VAC
Rated Frequency Range
50/60 Hz
Input Current Range
0.7-1.5 Amp AC
Max Power Consumption
36 VA
Environmental Specifications
Designation
Requirement
Temperature
Operation: -20º to +50º C (-4º to +122º F)
Storage: -40º to +85º C (-40º to +185 º F)
Humidity
Operation: up to 80% RH without condensation
Storage: up to 85% RH without condensation
ID Tag Requirements
All cows on the farm must have their tags attached to the ear on the same side. This is important for
establishing the location of the antennas.
AfiPass II supports ISO standard HDX passive ID tag types (ISO 11784/5).
2.2
Parlor Electrical Grid - Grounding Requirements
•
Potential difference between ground and zero:
≤
~0.6V
•
Spike:
≤
~0.9V