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BL3085B fiches techniques PDF

BELLING - RS-485 Transceivers

Numéro de référence BL3085B
Description RS-485 Transceivers
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BL3085B fiche technique
BL3085B
High ESD-Protected, Fail-Safe, Slew-Rate-Limited
RS-485 Transceivers
General Description
The BL3085B is a half-duplex RS-485 transceiver with ±18kV IEC 61000-4-2 contact discharge
protection. The BL3085B contains one driver and one receiver. The device features fail-safe circuitry,
which guarantees a logic-high receiver output when the receiver inputs are open or shorted. This means
that the receiver output will be logic high even if all transmitters on a terminated bus are disabled. The
BL3085B features reduced slew-rate driver that minimizes EMI and reduces reflections caused by
improperly terminated cables, allowing error-free data transmission up to 250kbps. The BL3085B has a
1/8 unit load receiver input impedance that allows up to 256 transceivers on the bus.
Configuration
Functional Block of BL3085B
Applications
RS-485 Communications
Level Translators
Transceivers for EMI-Sensitive Applications
Industrial Control Local Area Networks
Energy Meter Networks
Lighting Systems
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