232 485 Converter Product PerformanceWhat are the product performance?

Whether the power supply is wide, so that it can adapt to a variety of different site environments.

Whether it is isolated or not determines the anti-interference ability.

232 485 Converter Product Performance:

1. High-performance RS-232 485 bidirectional converter, compact size, easy installation, compatible with EIA TIA's RS-232C and RS-485 standards;

2. Automatically detect the serial port rate, identify and control the data transmission direction;

3. The unique high-efficiency serial port power taking technology, the three wires can still work normally, and the power consumption is very low;

4. The communication distance is up to 1200 meters (RS-485 is below 9600kbps);

5. The interface has 15kV electrostatic protection;

6. Standard: EIA RS-232, RS-485;

7. RS-232 signal: TXD, RXD, GND; RS-485 signal: D+, D-, GND;

8. Working mode: asynchronous work, point-to-point or multi-point, 2-wire half-duplex direction control: using automatic data flow control technology (ADDC), automatically identify and control the direction of data transmission;

9. Baud rate: 300 115200bps, automatic detection of serial signal rate;

10. Load capacity: support 32-point polling environment (128 points can be customized);

11. Transmission distance: 1200 meters (9600bps) at the RS-485 end, and no more than 5 meters at the RS-232 end;

12. Interface protection: 15kV electrostatic protection;

13. Interface form: RS-232 is DB9 female, RS-485 is DB9 male or 3-digit industrial terminal;

14. Power supply index - power input: no external power supply is required, the device obtains power consumption from the TXD, RTS, DTR signal of RS-232 port: static power consumption is within 10mA, and the average dynamic power consumption is within 40mA;

15. Environmental indicators - working temperature: -20 60 Humidity: relative humidity 5% 95%;

16. Appearance index - color: computer white length, width and height: 90mm 33mm;

17. Material: plastic (shell) Weight: 40g.

Feichang Technology, a professional manufacturer of optical transceivers, optical fiber transceivers, industrial switches, and protocol converters, independently develops brands, welcome to come to understand and communicate.

Interface characteristics: Serial port conforms to EIARS-232 485 422 protocol electrical interface: serial port interface bit DB9 interface.

Transmission medium: Category 5e twisted pair shielded wire or 485 special wire working mode: asynchronous work, point-to-point or multi-point, 2-wire half-duplex, 4-wire full-duplex isolation: isolation voltage 3500V

Transmission distance: 1200 meters for RS-485 RS-422 end, no more than 5 meters for RS-232 end.

Size: 95L*65W*25Hmm.

Environment: Temperature: -20 60, Humidity: 5%-95% Transmission Rate: 300bps—115200bps Protection Level: 600W Surge Protection, 15kV Electrostatic Protection.

Compact size, using DB9 connectors, with binding posts. RS-232, RS-485 TIA EIA standards Automatic sending and receiving of data, no external flow control signal (RTS) required Power supply: Unique serial charge pump drive technology, no need for external power supply, True three-wire communication, no need to initialize serial port Ability to connect 32 network devices How it works:

Asynchronous Half-Duplex (RS-485) Virtual Sensitive Suitable for all communication software used, i.e. Divine Reputation Plug and Play Dimensions: 63mm 33mm 17mm

Operating environment: -25 to 70, relative humidity of 5% to 95%, support DOS win95, win98 win2000, nt, xp, linux, etc.

485 converters are used for point-to-point, point-to-multipoint communication, industrial control automation, road traffic control automation, smart cards, time attendance, access control, food sales systems, industrial distribution systems, closed-circuit monitoring, security systems, POS systems, building automation systems, and self-service banking systems.

In terms of performance, it can be divided into the following types: passive 485 converter, active 485 converter, lightning protection 485 converter, optical isolation 485 converter, lightning protection optical isolation 485 converter. Passive 485 converter, the smallest size, using serial port power theft technology power supply, so do not need external power supply, because of its small size, no power supply, so the application is flexible, but because of its small size, many protection circuits can not be done, resulting in the protection of 485 equipment and computers is not very good.

Due to the use of serial port theft technology, the power supply is insufficient, resulting in a small load. 2.The active 485 converter is just an external power supply on the passive 485 converter, without any protection, the market for this kind of product is basically no prospect, and this kind of product is basically extinct in the market.

3.Lightning protection 485 converters are generally products with power supply, in which components such as lightning protection tubes can prevent external damage such as surges, electromagnetic interference, and lightning interference. Protect the electricity.

Brain as well as 485 devices. There is a passive version of the 485 converter that is claimed to have lightning protection, due to.

Its size is small, and it is not very realistic to add components such as anti-detonators in it, even if there is, performance.

It's not very good either.

4.Opto-isolated 485 converters use an external power supply. It is divided into single-ended isolation and double-ended isolation, single-ended optical isolation is to use a photoelectric isolation chip on the channel of the 485 signal, so that the electrical signal is converted into an optical signal, and then the optical signal is converted into an electrical signal, so that there is no electrical contact on the 485 signal channel, so as to achieve isolation.

The double-ended isolation is based on the photoelectric isolation of the 485 signal, and then the power supply of the 485 converter is powered, and a transformer is used between the 232 and 485 terminals, so that the power supply has no electrical contact, so as to achieve the real sense of isolation.

5.The lightning protection optical isolation 485 converter is based on the optical isolation 485 converter and the lightning protection function. This is where the Lightning Isolation 485 converter comes in, providing complete protection such as lightning protection and double-ended isolation to protect your computer and 485 devices.

6.The industrial-grade lightning protection optical isolation 485 converter is based on the lightning protection optical isolation 485 converter using imported chips. The industrial-grade lightning protection optical isolation 485 converter belongs to this, providing lightning protection, double-ended isolation and other complete protection, stable protection of your computer and 485 equipment.