Rail-mount TTL To RS485 Galvanic isolated Converter, 600W Lightningproof & Anti-Surge, Multi-Isolation Protection
Rail-Mount TTL To RS485 (B)
Galvanic isolated Serial Port Converter
Features At A Glance
- Compatible with TTL/RS485 standard, converting the TTL signal into differential RS485 signal, support 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, lightningproof & 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 lightningproof 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 Balanced Differential RS485 Signal
For Interface Converting, Expanding Nodes And Long-Distance Communication
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, lightningproof & 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.
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