Description

Onboard power and signal isolation, provide stable isolated voltage, high reliability and strong anti-interference. Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, anti-electrostatic. Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage protection, improves shock resistance
TTL TO RS422 (B) is an industrial-grade rail-mounted electrically isolated TTL-to-RS485 serial converter.
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Features:

Compatible with TTL/RS422 standard, converting the TTL signal into differential RS422 signal, support full duplex communication
Compatible with 3.3V ~ 5V TTL signal level, provides anti-reverse and over-voltage protection for power supply interface
Onboard unibody power supply isolation, provides stable isolated voltage and needs no extra power supply for the isolated terminal
Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
Onboard TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, anti-electrostatic
Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provide over-current/over-voltage protection, improve shock resistance
Onboard RS422 input and output terminal 120R resistor, enabled/disabled via jumper
Industrial rail-mount ABS case design, small in size, easy to install, and cost-effective

Specifications:

Product Type: Galvanic isolated TTL to RS422 converter
Power supply: 3.3V ~ 5V
Protection: over-voltage, reverse-proof
Device Port: TTL/RS422 standard compatible

TTL:

Connector: screw terminal
Transmission distance: about 10m
Transmission mode: point-to-point

RS 422:

Connector: screw terminal
Protection: surge-suppress and 15KV ESD protection
Terminal resistor: 120R, enabled/disabled via jumper (inside the case)
Transmission Distance: About 1.2km
Transmission Mode: full duplex mode, point-to-multipoint (up to 256 nodes, it is recommended to use repeaters for 16 nodes or more)

Appearance:

Case: Rail-mount ABS case, suitable for 35mm DIN rail
Dimensions: 106.0 × 58.6 × 36.0mm

Packages Includes:
1 x Waveshare Rail-mount TTL To RS422 Galvanic isolated Converter, Anti-surge, Multiple Isolation Protection