Type:Logic ICs
Condition:New
Model:KMGK-ZJ11F
Standard rail installation, isolation repeater, built-in Jinshengyang DC-DC module. 9-30 VDC power supply, industrial products.
KMGK-ZJ11FRS485 Active Isolated Relay(485 amplifier 485 isolator 485 extender) is a product specially designed and developed for high-demand locations. The product is compatible with RS485 industry standard. It can extend the transmission distance of RS485 and increase the number of RS485 nodes. At the same time, DC-DC power isolation and high-speed electromagnetic isolation of communication signals provide effective protection for RS485 communication. Plug and play.
Internal automatic transceiver with zero delay. Two-wire two-way RS485 communication without handshake signal.
There are two green lights with power supply and communication transmission indicator.
Communication rate: 300 bps-115.2 Kbps, protocol automatic identification, two-way communication, direction automatic identification.
Transmission Distance: 2KM (Ordinary Network Line)
Interface protection: interfaceBuilt-in TVS Transient Voltage Suppressor1500W Surge Protection, 15KV Electrostatic Protection, 3000V Communication Isolation, Super Lightning Protection
Working environment: temperature - 40 ~ + 80 C humidity < 95%
The repeater is simple to use. It only needs to connect the repeater to the communication network. There is no need to control the flow of data. The converter can control the flow of sending and receiving data automatically. The whole communication transmission process is completely transparent. The product is designed according to the concept of industrial control standards, and the power supply is completely isolated! Communication is completely isolated! It has the characteristics of strong anti-interference ability, long transmission distance, high speed and stable operation. It is widely used in attendance machine, IC card charging system, industrial automation control system, one-card access control system, parking lot system, automatic banking system, bus charging system, dining hall selling system, highway toll station system, etc.
The power supply can use DC24V output power supplied by PLC. The 485 ports A and B of PLC are connected to A1 and B1 ports of the product respectively. The A2 and B2 ports of the product are A and B ports isolated from RS485 of PLC, which can be connected to other devices, thus protecting 485 communication of PLC more stable and not damaged.
GiveTwo 120 ohm 1/4W terminal matching resistors.
Because of the extension of transmission distance of 485 bus or the increase of 485 devices in 485 bus, 485 signal will be continuously attenuated, which may eventually lead to the instability of 485 bus or even can not be used. The 485 bus repeater can enhance and amplify the existing 485 signal and increase the number of 485 devices in RS-485 bus network.
In the field construction, because of the distance of 485 bus, potential difference is formed, which results in common mode interference and stability reduction. The imported photoelectric isolator of 485 bus repeater can provide 3000V isolation voltage, effectively isolate 485 bus from each other and prevent common ground interference. The Jinshengyang DC/DC module can completely isolate the power supply at both ends. Thus complete isolation can be achieved.
485 repeater adopts professional I/O circuit and imported industrial RS485 control chipMaximum support for 256 loads.Data flow automatic control technology is used to automatically identify and control the direction of data transmission. Zero delay design is adopted, and the transmission speed is fast.Automatic detection of serial signal rate,No need to set serial baud rate.
