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Rail-Μount TTL to RS422 Galvanic Isolated Converter

Κωδικός:

31-00023652

Part Number: TTL TO RS422 (B)

ΚατασκευαστήςWaveshare Part NumberTTL TO RS422 (B)

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Rail-Mount TTL To RS422 Galvanic Isolated Converter, Anti-Surge, Multiple Isolation Protection

Rail-Mount TTL To RS422 (B)
Galvanic isolated Serial Port Converter

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

Primary Function
Converting The TTL Signal Into Balanced Differential RS422 Signal
For Interface Converting, Expanding Nodes And Long-Distance Communication

Rail-Mount Support
Easy To Combine Multi Rail-Mounted Serial Server Together, More Freely

Interface Introduction

TOP SIDE SCREW TERMINAL		BOTTOM SIDE SCREW TERMINAL
VCC	Power Input DC 3.3V~5V power supply	R+	RS422 differential signal receive positive
GND	Ground	R-	RS422 differential signal receive negative
TXD	TTL transmit data pin	T-	RS422 differential signal transmit negative RS485 differential signal negative (B-)*
RXD	TTL receive data pin	T+	RS422 differential signal transmit positive RS485 differential signal positive (A+)*
GND	TTL signal ground	GND	RS485/422 signal ground

Application Examples
The TTL TO RS422 (B) can be widely used for point-to-point, point-to-multipoint, long distance cascaded communication network between two hosts, or between host and MCU/Peripheral. It also can be used in the application scenarios that require TTL to RS422 conversion such as Industrial Automation and IoT.

Product Type: Galvanic isolated TTL to RS422 converter
Power Supply Interface:
- 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
RS422:
- 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: 106x58.6x36mm

Communication Connection Diagram
TTL convert to RS422, point to point, full duplex communication, suitable for interface conversion

TTL convert to RS422, point-to-multipoint, full duplex communication, suitable for expanding nodes

Two groups TTL to RS422 conversion, point-to-point, full duplex communication, suitable for extending the communication distance of TTL

Multiple Protection, Safe And Stable
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