TTL To RS485 Isolated Converter DIN-Rail
DIN Rail-Mount TTL To RS485 Galvanic Isolated Converter, 600W Lightningproof & Anti-Surge, Multi-Isolation Protection
Features:
- Compatible with TTL/RS485 standard, converting the TTL signal into differential RS485 signal, supporting half-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, lightning proof & anti-electrostatic
- Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provide over-current/over-voltage protection, improve shock resistance
- Onboard RS485 output terminal 120R resistor, enabled/disabled via switch
- Industrial rail-mount ABS case design, small in size, easy to install, and cost-effective
Specifications
| PRODUCT TYPE |
Galvanic isolated TTL To RS485 converter |
| POWER SUPPLY INTERFACE |
Power supply |
3.3V ~ 5V |
| Protection |
over-voltage, reverse-proof |
| DEVICE PORT |
TTL/RS485 standard compatible |
| TTL |
Connector |
screw terminal |
| Transmission distance |
about 10m |
| Transmission mode |
point-to-point |
| RS485 |
Connector |
screw terminal |
| Protection |
600W lightning proof and surge-suppress, 15KV ESD protection |
| Terminal resistor |
120R, enabled/disabled via switch |
| 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 |
Case |
Rail-mount ABS case, suitable for 35mm DIN rail |
| Dimensions |
91.6 × 58.7 × 23.3mm |
Primary Function
Converting The TTL Signal Into a Balanced Differential RS485 Signal
For Interface Converting, Expanding Nodes And Long-Distance Communication
DIN Rail-Mount Support
Easy To Combine Multi Rail-Mounted Serial Server Together, More Freely
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, lightning proof & anti-electrostatic. Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage protection, improves shock resistance
Interface Introduction
| TOP SIDE SCREW TERMINAL |
BOTTOM SIDE SCREW TERMINAL |
| VCC |
Power Input
DC 3.3V~5V power supply |
DIP SWITCH |
120R enable switch |
| GND |
Ground |
SGND |
RS485 signal ground |
| TXD |
TTL transmit data pin |
A+ |
RS485 differential signal positive |
| RXD |
TTL receive data pin |
B- |
RS485 differential signal negative |
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
Application Examples
The TTL To RS485 (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 RS485 conversion such as Industrial Automation and IoT.
Product Show
Dimensions
