Widex DEX COM-DEX - Page 82

Wireless security measures
Security of the wireless signals is assured through device system design
that includes:
● Individual MAC address for each unit which is checked during each
transmission.
● A built-in pairing table which specifies valid and legitimate pairing
among units
● A proprietary Widex communication protocol which checks the pack-
age numbers during each transmission.
● A Cyclic Redundancy Check (CRC) to check data validity and correct
errors.
Electromagnetic emissions/immunity standards
The product complies with the following EMC/EMI standards:
Standard Test type Note
47 CFR Part 15,
Subpart B
RF emissions US FCC requirements
for unintentional radia-
tors
47 CFR Part 18 RF emissions US FCC requirements
for Industrial, Scientific
and Medical Equipment
IEC 60601-1-2 General EMC including
RF emissions,
RF immunity, ESD
Medical Electrical
Equipment, Electro-
magnetic compatibility
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