User's Manual

44
Appendix.Specifications
The addSWITCH A724 Series 4 was intended to fulfill the specification
of the ETSI 300 220, Class I, Subclasses a and b, but other national
norms are similar to this (for example, the CFR 47, Part 90,
Subpart J).
Table 5 shows the main operational parameters of the A724.
Table 5. Operational Parameters
Parameter Min Typical Max Unit
Common
Supply 5.0 6.2 10.0 V
Operating Temperature -30 +70 °C
Relative Humidity 10 99 %
Class Protection IP65
Data Rate (using the onboard software modem) 1000
1500
a
2000 bps
Operating Frequency
b
432 470 MHz
Frequency Stability (-20 to +60 °C)
±
1.5
kHz
Frequency Stability (-30 to +70 °C) ±2.0 kHz