TTL To RS485 (C) Galvanic isolated Converter Castellated Holes With Immersion Gold process, Compact size, Easy to integrate
Features at a glance
Compatible with TTL/RS485 standard, converting the TTL signal into differential RS485 signal, supports half-duplex communication
Compatible with 3.3V ~ 5V TTL signal level, provides 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, lightningproof & anti-electrostatic
Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provide over-current/over-voltage protection, improve shock proof performance
Onboard RS485 output terminal 120R resistor, enabled via soldering
Black immersion gold process design, compact size, easy to integrate
Technical Specifications
Product Type
Galvanic isolated TTL To RS485 converter
Power supply interface
Power supply
3.3V ~ 5V
Protection
over-voltage
Device Port
TTL/RS485 standard compatible
TTL
Transmission distance
Less than 10m
Transmission mode
point-to-point
RS485
Protection
200W lightningproof and surge-suppress, 6KV ESD protection
Terminal resistor
120R, enabled via soldering
Transmission Distance
About 1.2km
Transmission Mode
point-to-multipoint (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)
Appearance
Dimensions
42.8 x 15.2 x 4.75mm
Primary function
Converting the TTL signal into balanced differential RS485 signal for interface converting, expanding nodes and long-distance communication
Multiple Protection, Safe And Stable
Onboard power and signal isolation, provide stable isolated voltage, high reliability and strong anti-interference. Onboard Lightningproof Diodes and TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic. Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage protection, improves shock proof performance
Compact And Easy Integration
Castellated Holes With Immersion Gold Design, Highly Integrated Packaging Supports Multiple Ways To Be Embedded Into Various Product Applications
Interface Introduction
INDICATORS
R (RXD)
RX indicator, lights up when the TTL port receives data
T (TXD)
TX indicator, lights up when the TTL port sends data
PWR
Power indicator, lights up when there is power supply connection and voltage is detected
Left side interface
Right side interface
PE
RS485 signal ground
GND
Ground / TTL signal ground
RXD
TTL receive data pin
B-
RS485 differential signal B-
TXD
TTL transmit data pin
A+
RS485 differential signal A+
VCC
Power Input DC 3.3V~5V power supply
Communication Connection Diagram
TTL convert to RS485, point-to-point, half-duplex communication, suitable for interface conversion
TTL convert to RS485, point-to-multipoint, half-duplex communication, suitable for expanding nodes
Two groups TTL To RS485 conversion, point-to-point, half-duplex communication, suitable for extending the communication distance of TTL
