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11
eDRX Current Draw
The SIM card will have a major impact on this feature. Network Carriers will support different modes of
operation. The R&S test SIM for the CMW500 does not support SIM deactivation during eDRX cycles.
This caused the number to be significantly greater than a setup with a deactivation mode. The feature
below shows result using the CMW500 test SIM. Under good conditions using a SIM that can be
deactivated, the current draw could be as low as 45uA instead of 194uA for this setup. This setup was
using an eDRX cycle of 81.92 s (8 HF).