MCS-81 Isolated USB to RS232/485/TTL Serial Port
The latest upgrade V6 version, FT232 and ADI magnetic isolation scheme, aluminum alloy shell, CNC processing, reliable communication speed to 92,1600 bps! The craft is exquisite.
MCS-81 is a USB-to-RS-232/485/TTL photoelectric isolation converter. It can convert a single-ended USB signal to RS-232/485 signal without additional power supply, compatible with USB and RS-232/RS485 standards. The converter has zero-delay automatic transceiver and transceiver conversion, automatic control of data flow direction, plug-and-play. It ensures that it is suitable for all existing communication software and interface hardware.
1500V complete signal isolation, integrated independent power supply, lightning protection, anti-static, high-speed stability, fully protect computer USB damage caused by external shocks, short circuit, computer crash caused by strong interference, blue screen and other issues.
Whether the debugging equipment is high-power, strong interference, or low-voltage small boards such as ordinary single-chip computers, it is recommended to use isolated serial ports, which can effectively avoid the computer USB damage caused by inadvertent short circuit operation, crash, blue screen and other issues, greatly improving security.
 
Module characteristics
1. The original FT232RL master control, high-speed and stable, reliable speed up to 921600 bps.
2. ADI integrated magnetic isolation, low error code, high reliability, low power consumption.
3. Integrated brick isolation power supply, isolation side without external power supply, easy to use, avoiding tedious wiring.
4. Increase the isolation partition area with a width of more than 4 mm, and maintain enough creepage distance.
5. TTL output TX RX terminal integrated protection diode to improve the impact resistance.
5. RS485 output integrated gas discharge detonator and 485 special TVS tube, lightning protection and static electricity protection, industrial application is safe and reliable.
6. There is no electrical connection between the USB terminal and the output terminal, which fully guarantees that the USB port of the computer will not be damaged by external short circuit, impact and so on. Avoid computer crash and communication instability caused by interference.
7. TTL output level can be switched, adapted to 5V/3.3V system, flexible and easy to use.
8. Aluminum alloy shell, grinding treatment, CNC numerical control opening, exquisite and accurate technology, firm and durable.
9. High quality USB-B port, COM port, smooth plug-in, solid and reliable, nickel-plated stainless.
10. Integrated power supply, USB indication, sending and receiving four LED indicator lights.
Main parameters:
Module Type: Isolated USB to TTL/RS232/RS485 Serial Port
Rated communication rate: 600-921600 BPS
485 data direction control: hardware automatically distinguishes and controls the direction of data transmission.
TTL level output: 5V or 3.3V (optional, generally compatible)
LED: A blue USB power indicator, a red sending indicator, and a green receiving indicator.
USB port protection: 200mA fuse, completely isolated from the output.
RS485 Port Protection: Provides 600W Lightning Protection, Surge Protection and 15KV Electrostatic Protection
Interface form: RS232 DR9 public port, RS485 terminal, TTL needle arrangement
Transmission distance: RS485 1200 meters, RS232 15m, USB 5m.
Load capacity: RS232/TTL point-to-point, RS485 maximum 32 nodes.
Use environment: - 15 C to 70 C, humidity 5% - 95%.
Operating systems: WINXP, WIN7/8/8.1, Win10
 
Special tips:
1. There are some isolation modules on the market that need external power supply. This module does not need external independent power supply. It can be used as a common USB to TTL serial port.
2. USB and RS232/485/TTL are isolated, but TTL/RS485/RS232 are not.
Operation instructions
1.5V/3.3V Selection Switch: Switch to select TTL signal level.
2. RS485 120R Selection Switch: Switch off or link RS485 120 Euro Balanced Resistance.
Distribution information:
1. Driver (FT232RL, supporting XP/WIN7/WIN8/WIN10 32/64 bits)
2. Serial debugging tools.
Please request download link from customer service (high-speed Enterprise Cloud disk, direct download, no registration!)
Shipping list
1. MCS-81 Isolated USB to RS232/485/TTL Module
2. USB Power Supply/Communication Line 1.0m
 
Why isolate the USB interface?
USB interface has been one of the most commonly used interfaces for electronic engineers and practitioners in their daily work and life. With the increasing competition in the computer industry and the lower price of products, most businesses are forced to simplify and simplify the protection part of computer motherboard interface. USB interface not only often contacts with human body and external devices, but also powers external devices in many cases. External strong electricity and strong interference cause great pressure on USB port. This has led to early strikes on many computers'USB interfaces and even damage to the motherboard.
This product is suitable for the following users:
1. Working environment with strong electricity and interference
Some circuits contain strong electric and interference environment (such as high voltage, frequency converter, motor drive, etc.).
When it comes to the occasions connected with computers, we must isolate them to ensure the safety of computers and people.
2. Noise-sensitive areas
As we all know, computers are a great source of noise. In the noise sensitive area, we can communicate with USB interface through this device. For example, high-precision USB data acquisition system, HIFI audio system.
3. USB Debugging Device
For example, JTAG/SWD simulator of various USB interfaces, ISP/ASP/IAP/ICP downloader, etc. When you often fail to connect during debugging and your computer crashes, you can use USB isolation to try to improve it.
4. Various industrial control USB devices
In industrial environment, USB devices often crash, isolating communication devices can effectively reduce the probability of crash and damage in industrial environment. Sometimes it is necessary to extend the USB cable. The USB isolator can act as a very good USB repeater and isolate the ground pressure difference between the upstream and downstream devices.
5. Medical equipment
Safety of human body is the most important and primary consideration, but some medical equipment is connected to computer through USB interface. In the process of collecting data or data from human body, it is necessary to have direct electrical contact with human body. To avoid electric shock caused by high voltage which may be transmitted from computer to human body through equipment and interface lines, electrical isolation of interface lines becomes an important protective measure. One of.