Instruction Manual

Appendix L. RF401/RF411 Average Current Drain Calculations
The base RF401/RF411’s total average current (It) can be calculated over an
interval (T) as follows:
It = Is + Ih + Iq + Ir + Ii
Is = {table value}
REMOTE
The average current drain of a remote RF401/RF411 being collected on
schedule has 4 contributors:
1) The STANDBY AVG RECEIVE CURRENT – Is
2) The average transmit current from data transmission – Id
3) The average receive current of data request receptions – Ir
4) The average receive current from “time of inactivity to sleep” – Ii
The remote RF401/RF411’s total average current (It) can be calculated over an
interval (T) as follows:
It = Is + Id + Ir + Ii
Is = {table mA value}
length header" long
"
the
is
L
where
73
(ms)
T
(ms)
L
Ih
mA×
=
point) data res-highper ms (4 mA
73
(ms) T
point] dataper ms
2 (ms)
45[
Id
×
+
=
mA 24
(ms) T
(ms) 20
Ir ×=
50)
sleep" toinactivity of time"default (using mA 24
(ms) T
ms 5000
Ii =
×=
mA 73
(ms) T
(ms) 20
Iq ×=
point)
data
res
-high
per
ms
(4 mA 24
(ms) T
point] dataper ms 2 (ms) 45[
Ir
×
+
=
50) sleep" toinactivity of time"default (using mA 24
(ms) T
ms 5000
Ii =×=
L-2