The converter is compatible with RS-232 and RS-485 standards and can convert single ended RS-232 signals
Convert to balanced differential RS-485 signal with built-in fast transient voltage suppression
Protector, this protector is designed to protect the RS-485 interface, using today's advanced technology
The TVS (Transient VOLTAGE SUPER) converter can
Extend the RS-485 communication distance to 1.2 kilometers without the need for an external power supply using a unique
The "RS-232 charge pump" driver does not require initialization of the RS-232 serial port to obtain
To the power supply, it has zero delay automatic transmission and reception conversion internally, and a unique I/O circuit for automatic transmission and reception
Control the direction of data flow without the need for any handshake signals (such as RTS, DTR, etc.), from
And it ensures that programs written in RS-232 mode can be accessed without any changes
Run in the specified mode to ensure compatibility with existing operating software and interface hardware, and transfer the converter
The transmission rate of 300-115.2Kbps can be applied between the main control machines and between the main control machines
A point-to-point or point to multipoint remote multi machine communication network is formed between microcontrollers or peripherals,
Implement multi machine response communication Widely used in industrial automation control systems, one card
Access control system, consumption system, attendance system, parking lot system, self-service banking
System, bus fare system, highway toll station system, etc.

performance parameters
1. Interface features: The interface is compatible with EIA/TIA RS-232C and RS485 standards
2. Electrical interface: RS-232 end DB9 hole connector, RS-485 end DB9 pin connector
Connector with terminal post
3. Working mode: Asynchronous half duplex differential transmission
4. Transmission medium: twisted pair or shielded wire
5. Transmission rate: 300-115.2KBPS
6. Dimensions: 63mmX33mmX17mm
7. Operating environment: -40 ℃ to 80 ℃, relative humidity of 5% to 95%
8. Transmission distance: 1200 meters (RS-485 end) and 5 meters (RS-232 end)
9. Protection level: RS-485 interface with 600W lightning surge protection per line

Connectors and signals

RS-232 to RS-485 conversion

Malfunctions and troubleshooting
1. Data communication failure
A、 Check if the RS-232 interface wiring is correct
B、 Check if the RS-485 output interface wiring is correct
C、 Check if the wiring terminals are well connected
2. Data loss or error
A、 Check whether the data rate and format at both ends of the data communication equipment are consistent

MS-101E RS-232/RS-485 Product Ordering Information

The product includes 1 interface converter, user manual, and certificate of conformity