Serial interface type: RS-232/422/485. Serial ports quantity: 2. Certification: FCC Part 15, Subpart B, Class A; EN55022, Class A; EN55022 and EN55024; EN61000-4-2, EN6100-4-3, EN61000-4-4, EN61000-4-5, EN61000-4-6, EN61000-4-6, EN61000-4-11, EN61000-4-11; ICES-003 Issue 4; RoHS.
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