AX−SIP−SFEU, AX−SIP−SFEU−API

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7

Typical Current Waveform

Figure 3. Typical Current Waveform for a Maximum Length Frame with Downlink Receive

at Nominal Transmitter Power

Battery Life Example

• 2 AAA Alkaline batteries in series

• One OOB frame transmitter per day at nominal

transmitter power (Pout = 13 dBm typical)

• Four maximum length frames with downlink receive

per day at nominal transmitter power

(Pout = 13 dBm typical)

• Device in Sleep

• Neglecting battery self−discharge

2 AAA alkaline capacity

1500 mAh × 3600 s/h

5400 C

Sleep charge per day

1.2 µA × 86400 s

0.10 C/day

OOB frame transmission

0.24 C/day

Frame transmission with downlink

4 × 0.57 C/day

2.28 C/day

Total Charge consumption

2.62 C/day

Battery life

5.6 Years